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Oracle ||   Data types of  Oracle by Siva
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
BLOB and CLOB in Oracle Database
 
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BLOB and CLOB in Oracle Database
Views: 6229 Abe Samir's Academy
11. CHAR, VARCHAR and TEXT Data Type in SQL (Hindi)
 
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Please Subscribe Channel Like, Share and Comment Visit : www.geekyshows.com
Views: 26211 Geeky Shows
SQL 034 Data Types, Character String Data, LONG VARCHAR
 
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Explains the SQL LONG VARCHAR data type. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 719 cbtinc
OracleSQL#5 Why/When/Where we use  data type in oracle database
 
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Detail explanation on oracle data type like Number blob/clob/nclob/(integer)/varchar2/varchar/char/nvarchr2/ncharvarchar2/date/long/rowid Giving the in-depth explanation on the data type of Oracle database In this video, you will get the answer to the following question what is Oracle data type where to use Oracle data type why we Oracle data type oracle data types tutorial In this series we cover the following topics: SQL basics, create table oracle, SQL functions, SQL queries, SQL server, SQL developer installation, Oracle database installation, SQL Statement, OCA, Data Types, Types of data types, SQL Logical Operator, SQL Function,Join- Inner Join, Outer join, right outer join, left outer join, full outer join, self-join, cross join, View, SubQuery, Set Operator. follow me on: Facebook Page: https://www.facebook.com/LrnWthr-319371861902642/?ref=bookmarks Contacts Email: [email protected] Instagram: https://www.instagram.com/lrnwthr/ Twitter: https://twitter.com/LrnWthR
Views: 56 EqualConnect Coach
15. Data Types in Oracle
 
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In this video I will talk about all the data types used by Oracle engine. In the upcoming video we will be using these data types. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 33460 ITORIAN
Every VARCHAR2(N) Declaration a Bug in PL/SQL!?
 
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Every VARCHAR2(N) Declaration a Bug!? That's right. VARCHAR2 declarations mean that you have to provide an "N" or constraint on the size of the variable. If you have such declarations all over your code, that's a form of hard-coding and you are likely to get hammered by VALUE_ERROR exceptions. This video shows how to fix this problem. See the Practically Perfect PL/SQL YouTube channel for related videos. https://www.youtube.com/channel/UCpJpLMRm452kVcie3RpINPw ============================================ Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
MySQL 27 - TEXT, TINYTEXT, MEDIUMTEXT, LONGTEXT
 
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The TEXT data types have not yet been discussed, but they are another string data type. They are similar to the VARCHAR data type with some minor differences that are important to know. The first thing to note is that there are four versions used to determine different sizes. From least to greatest size is TINYTEXT, TEXT, MEDIUMTEXT, LARGETEXT. These each have different maximum byte sizes: 255, 65535, 16 million something, and 4 billion something. You create a column as one of these data types just as you would with a varchar column. You work with them exactly the same, too. If that is the case, what are the primary differences between these and VARCHAR? The first difference is that VARCHAR is restricted by the row limit of a table. TEXT tables do not contribute nearly as much (max of 12 bytes) because the data is not stored inline in the table. This means that if you need to allow for extra space for other rows, you can use a TEXT column. And even though the table only contains a pointer to the data, it is all hidden to us and working with a TEXT column is the same as working with a VARCHAR column. The second primary difference is that TEXT data types do not allow for a default other than NULL. Thirdly, VARCHAR is limited to just under 64KB, whereas you can use MEDIUMTEXT or LARGETEXT to allow for more storage. So if what you are trying to store as an individual value is over 64KB, use a text column. Other than those three things, VARCHAR will usually work just fine for our text needs. Now, last thing is that these data types are often called CLOB data types. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://eepurl.com/-8qtH Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - https://www.dreamhost.com/r.cgi?1487063 (The best web hosting for a cheap price!)
Views: 4137 Caleb Curry
What is BINARY LARGE OBJECT? What does BINARY LARGE OBJECT mean? BINARY LARGE OBJECT meaning
 
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What is BINARY LARGE OBJECT? What does BINARY LARGE OBJECT mean? BINARY LARGE OBJECT meaning - BINARY LARGE OBJECT definition - BINARY LARGE OBJECT explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ A Binary Large OBject (BLOB) is a collection of binary data stored as a single entity in a database management system. Blobs are typically images, audio or other multimedia objects, though sometimes binary executable code is stored as a blob. Database support for blobs is not universal. Blobs were originally just big amorphous chunks of data invented by Jim Starkey at DEC, who describes them as "the thing that ate Cincinnati, Cleveland, or whatever" from "the 1958 Steve McQueen movie", referring to The Blob. Later, Terry McKiever, a marketing person for Apollo, felt that it needed to be an acronym and invented the backronym Basic Large Object. Then Informix invented an alternative backronym, Binary Large Object. The data type and definition was introduced to describe data not originally defined in traditional computer database systems, particularly because it was too large to store practically at the time the field of database systems was first being defined in the 1970s and 1980s. The data type became practical when disk space became cheap. This definition gained popularity with IBM's DB2. The name "blob" is further borrowed by the deep learning software Caffe to represent multi-dimensional arrays. Depending on the implementation and culture around usage, the concept might be alternately referred to as a "basic large object" or "binary data type".
Views: 287 The Audiopedia
Oracle tutorial : Conversion Functions In Oracle
 
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Oracle tutorial : Conversion Functions In Oracle. oracle tutorial for beginners sql convert This Oracle tutorial video will show how to use conversion function in sql oracle TO_CHAR() , TO_DATE() , TO_NUMBER() these are mostly used functions. Conversions functions are used to convert one data type to another type. 1)To_CHAR ( number | date, [fmt], [nlsparams] ) The TO_CHAR function converts the number or date to VARCHAR2 data type in the specified format (fmt). 2)TO_NUMBER( char, [‘fmt’] ) The TO_NUMBER function converts the characters to a number format. 3)TO_DATE( char, [‘fmt’] ) The TO_DATE function converts the characters to a date data type. — TO_CHAR() fmYYYY YYYY/MM/DD SELECT TO_CHAR(SYSDATE, ‘YYYY/MM/DD’) FROM DUAL; — SO USING TO_CHAR U CAN GET FORMATE OF DATE ACCORDING TO UR REQURMENTS —- $99,999 99.99 99,00 SELECT TO_CHAR(487, ‘$99,0’) FROM DUAL; — U CAN GET DATA IN CURRENCY FORMAT —- TO_NUMBER() SELECT TO_NUMBER(‘1745′,’99999’) FROM DUAL; SELECT TO_NUMBER(‘1,47,982′,’9,99,999′) FROM DUAL; —- TO_DATE() — THIS CONVERT VARCHAR DATE TO PROPER DATE FORMAT SELECT TO_DATE(’30-JAN-1995′,’DD-MON-RRRR’) FROM DUAL; For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 3440 Tech Query Pond
MySQL Data Types 4 - Binary, Varbinary, and Blobs
 
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Donate!: http://bit.ly/DonateCTVM2. Videos Available for Download - http://www.udemy.com/calebthevideomaker2-database-and-mysql-classes/ Playlist - http://www.youtube.com/watch?v=krx-w9icrkU&list=PL405B31DD586979DE manual: Binary and Varbinary: http://dev.mysql.com/doc/refman/5.6/en/binary-varbinary.html blobs: http://dev.mysql.com/doc/refman/5.6/en/blob.html binary is similar to char varbinary is similar to varchar binary is a byte string rather than a character string no character set! blob is commonly used for encryption. More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://Twitter.com/calebCurry Subscribe (it's free!): http://bit.ly/PqPyvH Amazing Web Hosting - https://www.dreamhost.com/r.cgi?1487063 (The best web hosting for a cheap price!)
Views: 5070 Caleb Curry
MySQL Data Types 1 - Char and Varchar
 
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Donate!: http://bit.ly/DonateCTVM2. Videos Available for Download - http://www.udemy.com/calebthevideomaker2-database-and-mysql-classes/ Playlist - http://www.youtube.com/watch?v=krx-w9icrkU&list=PL405B31DD586979DE Welcome to your very first video in this series, MySQL Datatypes! Please subscribe and like my videos, it means a TON to me. Thanks :) This is simply a small course to introduce you to all of the datatypes(excluding spatial, which I will not be covering in this course). All of the datatypes are broken into 4 sections, these are Numeric, Date and Time, String, and Spatial. In all, these are the datatypes I will be covering: tinyint, smallint, mediumint, int, bigint, decimal, float, double, real, bit, boolean, serial, date, datetime, timestamp, time, year, char, varchar, tinytext, text, mediumtext, longtext, binary, varbinary, tinyblob, mediumblob, blob, longblob, enum, and set. Wooah that's a lot. haha. I will not be going over geometry, point, linestring, polygon, multipoint, or multilinestring. If you want to learn more about Spatial types, start here: http://dev.mysql.com/doc/refman/5.6/en/mysql-spatial-datatypes.html Want more information about what is covered in these videos? Always be sure to read the supporting page in the MySQL manual. http://dev.mysql.com/doc/refman/5.6/en/index.html Video information: Char and Varchar ___________________________ Char has a character range from 0 up to 255, varchar allows up to 65535. a max length can be specified in parenthesis such as char(40). char is right padded to fit the specified amount of characters, and the spaces are then removed on retrieval. Only trailing spaces will be removed. for example. Cat_hat__ will come out as cat_hat. This can be a bad thing if you need to store spaces. you will need to use varchar instead. If a value entered is too long, it will be "truncated," or cut to length. Extra info ________ a character set is an allowed range of characters that are entered into an entry. such as UTF-8. Utf 8 is 3 bytes for every character. the storing information for varchar and char are like this.. char - string length. varchar - string length+1. A 10 character entry using UTF-8 would then take 30 bytes in char, and 31 bytes in varchar, but if only 5 characters are entered, it will be 30 bytes for char, and 16 for varchar. This is because char stores the trailing spaces till the requested size is full (in this case 10). A table maximum row size is 65535, so this means if you have a varchar 65535 that is completely full in one column, that is the max allowed stored across that column. Any corrections needing made in these videos please message me. Thank you! More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://Twitter.com/calebCurry Subscribe (it's free!): http://bit.ly/PqPyvH Amazing Web Hosting - https://www.dreamhost.com/r.cgi?1487063 (The best web hosting for a cheap price!)
Views: 13680 Caleb Curry
MySQL 25 - CHAR Data Type
 
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The first category of data types that we are going to cover in this MySQL series are the string data types, or character data types. There are two that I am going to talk about in this video, CHAR and VARCHAR. We'll start with CHAR. CHAR is a string data type where you specify how many characters are allowed in parenthesis after you declare the column as this type. For example, we can say CHAR(50) to allow up to 50 characters for each value in that column. The thing to know about CHAR though is that it is a fixed-length string. That means every single value inside of that column is actually going to be whatever you declare the length as. So if you say CHAR(50), every string is going to be 50 characters long. If, for example, you have a row that only uses 40 characters, MySQL will pad the right side of the string with spaces until it fills 50 characters. Now, the highest value you can put in here is 255. The 255 refers to characters. This means that you can have strings with up to 255 characters. How does the computer know how to store these characters? That has to deal with the character set and the encoding of the characters. By default, MySQL is going to use UTF-8. We are not going to discuss UTF-8 in detail for a while but essentially UTF-8 says that each character can take up to 3 bytes of storage. 255 comes from the max number you can count to using binary. So if we are keeping track of how many values are in this column in an 8 bit number, 255 is the highest. If you don't know what I'm talking about it, we'll worry about it later. You can actually make the column CHAR(0). In this situation, the only thing you could put in as a value for this column is an empty string (''). When retrieving variable length CHAR data from a database it may not look like the database pads the value. That's because MySQL actually strips spaces from the value when presented. If you want to keep all of the spaces that have been added when you retrieve the value, you can do that. Look up PAD_CHAR_TO_FULL_LENGTH online. In the next video we are going to discuss VARCHAR. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://eepurl.com/-8qtH Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - https://www.dreamhost.com/r.cgi?1487063 (The best web hosting for a cheap price!)
Views: 3691 Caleb Curry
SQL lesson 29, Difference between char and varchar2
 
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The video will explain the difference between alphanumeric datatypes char and varchar2
Views: 5420 hammadshams
setting the pagesize and linesize for your sql command promot
 
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Setting the pagesize and linesize for your sql command prompt to see the proper view if your table contains n no.of records
Views: 236 RK'S R&D
SQL 036 Data Types, Character String Data, CLOB or Character Large OBject
 
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Explains the SQL CLOB or Character Large OBject data type. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 1205 cbtinc
SQL 035 Data Types, Character String Data, NCHAR, NATIONAL CHARACTER
 
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Explains the SQL NCHAR, NATIONAL CHAR, NATIONAL CHARACTER data type. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 506 cbtinc
How to Concatenate String Values with Integer values in SQL Server - TSQL Tutorial
 
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How to Concatenate String and Integer Values in SQL Server ( + Sign vs CONCAT ) - TSQL Tutorial Working with Databases is fun. On daily basis we save data into tables in different columns and often we need to write queries which involve concatenation of multiple columns of different datatypes to produce our final output. In below example we have saved some data into #Customer Table which has Street Address column as string and zip as INT. we want to produce Full Address by concatenating these columns. To concatenate we can use + sign but this works only with String values. So if we have any Integer value/s we have to convert them to String first. We can use Cast or Convert function to convert Integer value to string. Also if there is any Null value among which values we are concatenating , our output will be Null by using + sign. To take care of that part we can use either ISNULL() or Coalesce Function to replace NULL with blank value in SQL Server. In SQL Server 2012 and Later versions, CONCAT function was introduced. You can concatenate multiple values by using this function. Fun part of this function is you don't have to worry about Null outcome as it will Ignore Null values and also you don't have to worry about converting INT into strings, It will take care of that automatically. So if you are using new versions such as 2012 or later, start taking advantage of this function. Blog post link for the video with script http://sqlage.blogspot.com/2015/03/how-to-concatenate-string-and-integer.html
Views: 13813 TechBrothersIT
difference between char and varchar data types
 
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in this example i have tried to explain how data is stored in the char and varchar datatype in oracle
Views: 4058 R.gowtham Kumar
Oracle Tutorial || online training||Adv Sql | Datatypes LONG & LONGRAW by basha
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
SQL 033 Data Types, Character String Data, VARCHAR
 
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Explains the SQL VARCHAR or variable length character data type. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 2145 cbtinc
Part 6   Transform rows into columns in sql server
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/06/part-6-transform-rows-into-columns-in.html This is another common sql server interview question. We will be using Countries table in this example. SQL to create the table Create Table Countries ( Country nvarchar(50), City nvarchar(50) ) GO Insert into Countries values ('USA','New York') Insert into Countries values ('USA','Houston') Insert into Countries values ('USA','Dallas') Insert into Countries values ('India','Hyderabad') Insert into Countries values ('India','Bangalore') Insert into Countries values ('India','New Delhi') Insert into Countries values ('UK','London') Insert into Countries values ('UK','Birmingham') Insert into Countries values ('UK','Manchester') Here is the interview question. Write a sql query to transpose rows to columns. Using PIVOT operator we can very easily transform rows to columns. Select Country, City1, City2, City3 From ( Select Country, City, 'City'+ cast(row_number() over(partition by Country order by Country) as varchar(10)) ColumnSequence from Countries ) Temp pivot ( max(City) for ColumnSequence in (City1, City2, City3) ) Piv
Views: 169461 kudvenkat
MySQL 32 - FLOAT and DOUBLE Data Types
 
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FLOAT and DOUBLE data types are data types that can be used to store numbers that can include decimal numbers. They are specifically used to store estimates. What do I mean? I mean that the precision of a FLOAT or DOUBLE value can be lost when doing math. The data types are only capable of maintaining a certain level of precision. The level of precision is usually adequate for most mathematical operations. If you need to store exact data, you will want to look into using the INT or DECIMAL data type instead. The numbers stored in a FLOAT or DOUBLE column are called floating point numbers, we'll see why in just a moment. Why are they called floating point numbers? let's look at a number. 150. This number could be represented as 150, or it could be represented as 1.5 * 10^2, or 1.5e2. With floating point numbers, scientific notation is used. These numbers are called floating point numbers because the decimal can float to different spots as we change the exponent. This means that the data type needs to store the number, how many decimal the number needs moved, and a sign bit. The benefit of floating point numbers is that they allow us to store pretty huge numbers. The down side is that they are not storing values exactly because they are limited in size. This means that only a certain level of precision is to be expected from a floating point data type. If you remember from the video of DECIMAL, precision is the number of digits in a number. As long as the precision for one of these data types exceeds the need for your specific data, the data type can work fine. For example, if you are storing a number like 15 trillion, you don't have to worry as much with precision as your number does not contain a lot of digits. This number can be represented as 1.5 x 10^13. This is a lot different than trying to store 1.5534534534 x10^13. Now we know both of these data types do not maintain a high number of digits correctly, but what is the difference between FLOAT and DOUBLE. The difference is the amount of storage they take up. Float takes up 4 bytes while DOUBLE takes up 8. The benefit in DOUBLE is that because it has more room to store data, it has a higher level of precision and can store bigger numbers. Now, what level of precision can you expect from either of these? FLOAT around 7 and DOUBLE around 15. Now, these data types are obnoxious because the exact values depend on your operating system and in general these monsters cannot be trusted. Especially when you start doing math with different numbers. In general, it is recommended to use the DOUBLE data type to have a higher level of precision and calculations in MySQL are done with DOUBLE. Always remember… prepare for trouble, make it double. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://eepurl.com/-8qtH Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - https://www.dreamhost.com/r.cgi?1487063 (The best web hosting for a cheap price!)
Views: 5922 Caleb Curry
SQL 037 Data Types, Character String, NCLOB or National Character Large OBject
 
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Explains the SQL NCLOB or National Character Large OBject data type. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 295 cbtinc
About that error: ORA-06502: numeric or value error
 
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"ORA-06502: numeric or value error" is one of the most commonly occurring and irritating errors for PL/SQL developers. Value too big for its "container"? Trying to stuff a non-numeric string value into a number through implicit conversion? [naughty naughty] In this video, Steven takes a close look at ORA-06502, exploring the ways it can be raised and how best to deal with those scenarios. ============================ Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
SQL 051 Data Types, BLOB Binary Large Object, LONG VARGRAPHIC
 
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Explains the BLOB Binary Large OBject data type LONG VARGRAPHIC. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 736 cbtinc
SQL 082 Numeric Scalar, OCTET_LENGTH or How many 8 bits in a string?
 
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Explains the Numeric Scalar Function OCTET_LENGTH or How many 8 bits in a string. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 111 cbtinc
MySQL 15 - Auto Increment (AUTO_INCREMENT)
 
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If you are using surrogate keys, every row is going to need to have a unique value for this column. The easiest way to do this is to just count upwards. The downside is that every time you insert data you are going to have to know what number to use. Fortunately, there is an easier way, with what is known as an AUTO_INCREMENT column. An AUTO_INCREMENT column is a column in a table that automatically counts upwards. If we set the PK column as an AUTO_INCREMENT column, we do not have to worry about keeping track of the numbers we've already used. Now, you can only have one AUTO_INCREMENT column per table, and you can only have one primary key per table. AUTO_INCREMENT has to be used on a primary key or a unique index. It makes sense to make the primary key column the AUTO_INCREMENT column, but you can create any other column as the AUTO_INCREMENT column as long as it has a UNIQUE index. So, for example, if you wanted to use a natural primary key but wanted to have a column that auto increments, you could do that by making the incrementing column UNIQUE. Now, the AUTO_INCREMENT does not force the data to never change. It is important to understand that the concept of surrogate and natural keys is foreign to the database. The database does not care what kind of key you use, as long as the qualifications are met. There are no keywords that say surrogate. There are no keywords that say natural. These are categories that we've made to help us better communicate about primary keys. An interesting thing you can do with primary keys is that you can make a combination of columns the primary key. This is important when more than one column is required to make something unique. In an intermediary table, instead of having an association ID, we can have the combination of two rows as the primary key. This is known as either a compound or composite primary key. In the situation of using natural keys, composite keys are more common. For example, you could have a shopping website that allows multiple people from the same household to use a certain coupon you sent out. In this situation, you could use the address and the person's name as the natural primary key. How do we reference primary keys? This requires what is known as a foreign key, which we will discuss in the next video. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://eepurl.com/-8qtH Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - https://www.dreamhost.com/r.cgi?1487063 (The best web hosting for a cheap price!)
Views: 14386 Caleb Curry
ORACLE: How to get FIRST and LAST DAY of  Month ?
 
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SQL Language, available for any version of Oracle Database.
Views: 5324 Database Tutorials
Alter database table columns without dropping table   Part 67
 
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In this video, we will discuss, altering a database table column without having the need to drop the table. Let's understand this with an example. Text version of the video http://csharp-video-tutorials.blogspot.com/2013/08/part-67-alter-database-table-columns.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-67-alter-database-table-columns.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists We will be using table tblEmployee for this demo. Use the sql script below, to create and populate this table with some sample data. Create table tblEmployee ( ID int primary key identity, Name nvarchar(50), Gender nvarchar(50), Salary nvarchar(50) ) Insert into tblEmployee values('Sara Nani','Female','4500') Insert into tblEmployee values('James Histo','Male','5300') Insert into tblEmployee values('Mary Jane','Female','6200') Insert into tblEmployee values('Paul Sensit','Male','4200') Insert into tblEmployee values('Mike Jen','Male','5500') The requirement is to group the salaries by gender. To achieve this we would write a sql query using GROUP BY as shown below. Select Gender, Sum(Salary) as Total from tblEmployee Group by Gender When you execute this query, we will get an error - Operand data type nvarchar is invalid for sum operator. This is because, when we created tblEmployee table, the "Salary" column was created using nvarchar datatype. SQL server Sum() aggregate function can only be applied on numeric columns. So, let's try to modify "Salary" column to use int datatype. Let's do it using the designer. 1. Right click on "tblEmployee" table in "Object Explorer" window, and select "Design" 2. Change the datatype from nvarchar(50) to int 3. Save the table At this point, you will get an error message - Saving changes is not permitted. The changes you have made require the following tables to be dropped and re-created. You have either made changes to a table that can't be re-created or enabled the option Prevent saving changes that require the table to be re-created. So, the obvious next question is, how to alter the database table definition without the need to drop, re-create and again populate the table with data? There are 2 options Option 1: Use a sql query to alter the column as shown below. Alter table tblEmployee Alter column Salary int Option 2: Disable "Prevent saving changes that require table re-creation" option in sql server 2008 1. Open Microsoft SQL Server Management Studio 2008 2. Click Tools, select Options 3. Expand Designers, and select "Table and Database Designers" 4. On the right hand side window, uncheck, Prevent saving changes that require table re-creation 5. Click OK
Views: 83562 kudvenkat
SQL 032 Data Types, Character String Data, CHAR or CHARACTER
 
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Explains the SQL CHAR or CHARACTER data type. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 506 cbtinc
SQL 050 Data Types, BLOB Binary Large Object, VARGRAPHIC
 
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Explains the BLOB Binary Large OBject data type VARGRAPHIC. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 1101 cbtinc
Overview of SQL Server Data Types: Numbers
 
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This video is part of LearnItFirst's Transact-SQL Programming: SQL Server 2008/R2 course. More information on this video and course is available here: http://www.learnitfirst.com/Course161 In this video, Scott will start with integer-based numbers, and then move into decimal-based numbers. How many bytes does it take to represent each basic integer data type? To demonstrate decimal-based numbers, money is used as the example. When a number is too long, unlike when a string is too long, Management Studio will return an overflow error instead of truncating. Scott discusses how to specify the number of digits and decimal places in the output, and more in this video. Highlights from this video: - INT, TINYINT, SMALLINT, and BIGINT - The DATALENGTH function - What if your business operates using less than 4 decimal places? - Using FLOAT and much more...
Views: 2297 LearnItFirst.com
mysql tutorial for beginners (6/8) : Indexes
 
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mysql tutorial for beginners (6/8) : Indexes As things stand, the table students works and can be searched without problem by MySQL—until it grows to more than a couple of hundred rows, At that point, database accesses will get slower and slower with every new row added, because MySQL has to search through every row whenever a query is issued. This is like searching through every book in a library whenever you need to look something up. Of course, you don’t have to search libraries that way, because they have either a card index system or, most likely, a database of their own. The way to achieve fast searches is to add an index, either when creating a table or at any time afterward. But the decision is not so simple. For example, there are different index types such as a regular INDEX, PRIMARY KEY, and FULLTEXT. Also, you must decide which columns require an index, a judgment that requires you to predict whether you will be searching any of the data in that column. And even when you’ve decided that, you still have the option of reducing index size by limiting the amount of each column to be indexed. If we imagine the searches that may be made on the students table, it becomes apparent that all of the columns may need to be searched. Anyway, go ahead and add an index to each of the columns, using the commands: ALTER TABLE students ADD INDEX(name(3)); An alternative to using ALTER TABLE to add an index is to use the CREATE INDEX command. They are equivalent, except that CREATE INDEX cannot be used for creating a PRIMARY KEY CREATE INDEX surname ON students (surname(5)); DESCRIBE students; These commands create indexes on both the name and surname columns, limiting name index to only the first 3 characters, and surname index to the first 5 characters. For instance, when MySQL indexes the following name: SAFAA It will actually store in the index only the first 3 characters: SAF This is done to minimize the size of the index, and to optimize database access speed. DESCRIBE command shows the key MUL for each column. This key means that multiple occurrences of a value may occur within that column, which is exactly what we want, as name or surname may appear many times. You don’t have to wait, until after creating a table to add indexes. In fact, doing so can be time-consuming, as adding an index to a large table can take a very long time. Therefore, let’s look at a command that creates the table students with indexes already in place. CREATE TABLE students ( Id_studnet SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT, name VARCHAR(10) NOT NULL, surname VARCHAR(20) NOT NULL, email VARCHAR(30) NOT NULL, INDEX(name(3)), INDEX(surname(5)), ,PRIMARY KEY(id_studnet),UNIQUE(email)); Another important index, PK, its single unique key for each student to enable instant accessing of a row. The importance of having a key with a unique value for each row will come up when we start to combine data from different tables. You can add PK, while you create the table at the first time, or later by issuing the following command: ALTER TABLE students ADD PRIMARY KEY(id_student); The last important index, FULLTEXT index Unlike a regular index, MySQL’s FULLTEXT allows super-fast searches of entire columns of text. It stores every word in every data string in a special index that you can search using “natural language,” in a similar manner to using a search engine. It’s not strictly true that MySQL stores all the words in a FULLTEXT index, because it has a built-in list of more than 500 words that it chooses to ignore because they are so common that they aren’t very helpful for searching anyway. This list, called stopwords, includes the, as, is, of, and so on. The list helps MySQL run much more quickly when performing a FULLTEXT search and keeps database sizes down. FULLTEXT indexes can be created for CHAR, VARCHAR, and TEXT columns only. A FULLTEXT index definition can be given in the CREATE TABLE statement when a table is created, or added later using ALTER TABLE (or CREATE INDEX). Adding a FULLTEXT index to the table students for the columns name and surname ALTER TABLE classics ADD FULLTEXT(name,surname); this index is in addition to the ones already created and does not affect them You can now perform FULLTEXT searches across this pair of columns. If you find that MySQL is running slower than you think it should be when accessing your database, the problem is usually related to your indexes. Either you don’t have an index where you need one, or the indexes are not optimally designed. Tweaking a table’s indexes will often solve such a problem. In the next tutorial, we will learn about, using FOREIGN KEY Constraints and how to join tables together. Subscribe for more: ---------------------------------------------------------------------------- https://www.youtube.com/subscription_center?add_user=saf3al2a SWE.Safaa Al-Hayali - saf3al2a
Views: 23076 Safaa Al-Hayali
SQL 048 Data Types, BLOB Compare Database Usage
 
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Explains the data type BLOB or Binary Large Object. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 2358 cbtinc
SQL 040 Data Types, Exact Numeric, SMALLINT
 
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Explains the exact numeric data type SMALLINT. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 433 cbtinc
Batch export data from Oracle tables to CSV files
 
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Batch export data from Oracle tables to CSV files, by OraLoader: http://www.withdata.com/oraloader.html
Views: 2382 Shiji Pan
51. Starting AUTO INCREMENT with a particular Number in SQL (Hindi)
 
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SQL 045 Data Types, Approximate Numeric, FLOAT
 
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Explains the approximate numeric data type FLOAT. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 864 cbtinc
84. DECIMAL Data Type in SQL (Hindi)
 
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Batch export SQLite CLOB (TEXT, NTEXT) data to files
 
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Batch export SQLite CLOB (TEXT, NTEXT) data, by SqliteLobEditor, http://www.withdata.com/sqlitelobeditor/ . Download link: http://www.withdata.com/down/SqliteLobEditor.exe .
Views: 150 Shiji Pan
SQL 041 Data Types, Exact Numeric, INT or INTEGER
 
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Explains the exact numeric data type INT or INTEGER. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 844 cbtinc
SQL 030 Introduction to Data Types or Columns may have what values?
 
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Explains data types or the possible values of columns. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 440 cbtinc
SQL 046 Data Types, Approximate Numeric, REAL
 
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Explains the approximate numeric data type REAL. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 267 cbtinc
SQL 039 Data Types, Exact Numeric, Compare Database Usage
 
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Explains exact numeric data types with a comparison of usage by the major databases. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 260 cbtinc
الدرس السادس والثلاثون : أنواع البيانات Data Types
 
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تحديد انواع البيانات في قواعد البيانات مع شرح لبعضها مثل ال Char,varchar,BOOL,TEXT,float, double ,INT و شرح لبعض الخصائص التي تأتي معها مثل long,tiny , small,meduime رابط تحميل الدرس http://abdullaheid.org/download/mysql101/36.Data-Types.zip
Views: 13618 Abdullah Almehmadi
SQL 069 Scalar Functions, CURRENT_USER, USER or Who is the user?
 
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Explains the Scalar Function CURRENT_USER, USER or who the user is. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 144 cbtinc
1. Introduction to SQL (Hindi)
 
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Here's how to Introduction to SQL Structured Query Language Complete Playlist: https://goo.gl/vkpS3h Database Management System (DBMS) Complete Playlist: https://goo.gl/WKHDVx Check Out Our Other Playlists: https://www.youtube.com/user/GeekyShow1/playlists SUBSCRIBE to Learn Programming Language ! http://goo.gl/glkZMr Learn more about subject: http://www.geekyshows.com/ __________________________________________________________ If you found this video valuable, give it a like. If you know someone who needs to see it, share it. If you have questions ask below in comment section. Add it to a playlist if you want to watch it later. ___________________________________________________________ T A L K W I T H M E ! Business Email: [email protected] Youtube Channel: https://www.youtube.com/c/geekyshow1 Facebook: https://www.facebook.com/GeekyShow Twitter: https://twitter.com/Geekyshow1 Google Plus: https://plus.google.com/+Geekyshowsgeek Website: http://www.geekyshows.com/ ___________________________________________________________ Make sure you LIKE, SUBSCRIBE, COMMENT, and REQUEST A VIDEO! :) ___________________________________________________________
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