Data types in Microsoft SQL Server 2005 |
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Every column in a Microsoft SQL Server 2005 table must hace a data type. MS SQL Server 2005 has a series of system data types readily available upon instalation. You can also add alias data types based on the system data types (see Working with alias data types in SQL Server 2005 using T-SQL) and custom data types by using the CLR integration. In the next table you have a list of the system data types available in MS SQL Server 2005.
You should take care of some facts when you choose a data type for a variable or for a column. When using exact numeric data types you can specifie the scale and precision (digits on the left and on the right side of the decimal point. Data will always be returned exactly as entered. In the case of the approxiamete numeric data types the MS SQL Server will tyy to keep the data as accurately as possible, For example 2/3 which is 0.(6) cannot be stored without loss so an approximation is stoted in the database. You should take care when using approximate numeric data types in WHERE clausebecause of the way data is stored because 1/3 + 2/3 = 3/3 = 1 but 0.(3) + 0.(6) = 0.(9) <> 1. When you store characters in a table, if the length of the text is not always the same you should use varchar on nvarchar. Even if it use some extra processing power, the benefits of not wasting space on the harddisk and on the database page that is holding the row is greater then the loss. The smalldatetime data type can be used to store dates between January 1st, 1900 and June 6th, 2079, values been kept in approximation to the nearest minute. The datetime data type can store dates between January 1st, 1753 and December 31, 9999 with an accuracy of one three-hundredth of a second. The timestamp data type is used to version-stamp table rows. You can hava only one timestamp column per table and it is not necessarly to specify a name for the timestamp column when you create a table.
written by Samaya , September 19, 2007
Can someone please let me know what datatype can be used to store any special characters?
written by Matthew , September 25, 2007
Samaya, You can use the nvarchar datatype to store unicode characters.
written by User , February 11, 2008
Can someone explain me what exactly is sysname datatype means? Thanks
written by rupa , February 26, 2008
how to change precision of money type
written by D"Silva Az , March 15, 2008
i want to store photographs of students in the database.im using sql server2005 & vb.net.How would i make use of image data type in sql server.
written by benpod , April 01, 2008
how do you retrieve images stored in an sql server 2005 db using classic asp?
written by Noel , June 13, 2008
D"Silva Az, You should use varbinary(max) instead of image. Image is going to be deprecated in SQL 2008 and/or future versions of SQL Server
written by prabhakar , June 27, 2008
create table emp(fullname varcchar(20),dob datetime,city varchar(20) insert into emp values(prabhakar,26/07/1983,chennai) select * from emp whenever execute the program in the date error will be coming like jan 1 1966 12:00am...i gave one date ..the result came diffrent can some one plz help me
written by anvesh , July 02, 2008
can u please tell me ,what is the difference between ntext and text?
written by mantuiala , July 03, 2008
in the case of ntext the data is kept using the Unicode format and each char will occupy 2 bytes. In the case of text the data is kept using only 1 byte per char so no Unicode data.
written by DO3AA , August 03, 2008
HOW CAN i GET THE DATA TYPE OF SOME COLUMN BY A QUERY?
written by sonali , August 04, 2008
Can u plz tell me how to delcare '$200' while creating table.
written by karthikpulla , September 02, 2008
is there any data type that stores true OR false
written by abc , October 24, 2008
bit is basically used to represent True or False. using 1 or 0. SELECT CONVERT(bit, 'true') SELECT CONVERT(bit, 'false') SELECT CASE CONVERT(bit, 'false') WHEN 0 THEN 'false' WHEN 1 THEN 'true' ELSE 'unknown' END SELECT CASE CONVERT(bit, 'true') WHEN 0 THEN 'false' WHEN 1 THEN 'true' ELSE 'unknown' END
written by abc , October 24, 2008
Forgot to put the null case SELECT CASE CONVERT(bit, NULL) WHEN 0 THEN 'false' WHEN 1 THEN 'true' ELSE 'unknown' END
written by CharlesNguyen , October 27, 2008
How to retreive large value data types from sql server 2005 using select value? Please help.
written by Desta , December 25, 2008
I need to parse a Date of my interest as "dd/mm/yyyy" format using Java. I try in such a way: date = simpleDateFormat.parse(String); But could n't parse correctly to the format i need it. So could you help me please?
written by Kal , January 24, 2009
how do you set a date column in a table to store/display as DD/MM/YYYY format? I've tried using the 'Date' data type for a column called Date of Birth but it displays with a time after it - (which i don't want). Any help appreciated..
written by SubbarayuduC , January 31, 2009
I want some more help on this topics. I want exactly,i want add files.in that matter i want to store in MSSQL2005 database.I have read file in Bytes.for that what is the Data type in MSSQL2005
written by bala , February 02, 2009
Is there Boolean type exist in SQL SERVER 2005? Thanks in Advance
written by Blader , February 11, 2009
SELECT OBJECT_NAME(c.OBJECT_ID) TableName ,c.name AS ColumnName ,SCHEMA_NAME(t.schema_id) AS SchemaName ,t.name AS TypeName ,t.is_user_defined ,t.is_assembly_type ,c.max_length ,c.PRECISION ,c.scale FROM sys.columns AS c JOIN sys.types AS t ON c.user_type_id=t.user_type_id ORDER BY c.OBJECT_ID;
written by johnson , March 02, 2009
How can i declare an autonumber field in SQLServer 2005?I neet such a field to be a primary-key for a cCustimer's Table.
written by Shail , March 08, 2009
How can I make a column in SQLServer 2005 to store only date and not datetime.
written by avinashg1 , March 12, 2009
how much data can be stored in sql server2005 in terms of rows
written by sanu , March 18, 2009
how to retrive the image content in sql which is greater than the max value
written by Mohd Ejaz , March 22, 2009
how to save the Image DATA Type in sql server i am using Vb.net2008 & Backend Sql Server2005 pls try to send the Respond Thanking You; Regards Ejaz
written by dgfhghken , April 30, 2009
how about you answer all peoples question! there are so many unanswered questions. i bet the owners needed an answer, or at least were hoping you would.
written by Samitha , May 18, 2009
You can define that particular column as BINARY, depend on the size you want to store you can use varbinary(n) up to 8000bytes or varbinary(max) can hold up to 2GB size image. CREATE TABLE StoreImage(imgFile varbinary(max)) INSERT INTO StoreImage(imgFile) SELECT * FROM OPENROWSET(BULK N'C:Image1.jpg', SINGLE_BLOB)
written by asddddddd , June 26, 2009
DO YOU NEED MORE HELP? ASK NOW!
written by shafina , July 02, 2009
How can i declare an autonumber field in SQLServer 2005?
written by ggg , July 08, 2009
rtrtr
written by bitsman , August 12, 2009
I need to use boolean data type in a table as the app accessing it has already been designed with true and false, is there a way out ... I don't see the boolean data type ... is there any thing else we can use apart from bit
written by ToeToeAung , September 07, 2009
i want to add a button in KryptonDataGridView. can you explain me? i want to use this button's event. with regard, ToeToeAung
written by pawan kumar , September 14, 2009
how to use date formate in a textbox, How to use nvarchar datatype as primarykey using as autonumber
written by Paul Williams , October 05, 2009
Repeating a question asked but not answered previously ... How can one determine the datatype of a value in T-SQL?
written by Rupa , October 28, 2009
i want to store video file in database plz help me
written by Abat , November 06, 2009
I would like to appreciate you for your work.I get a lot from you,and thanks so much more.I want to get more about SQL Server 2005,please.
written by Priyanka , November 06, 2009
I am planning to do MCTS certification for sql 2005. Can anyone get me some study materials for that?
written by dasdasdas , January 02, 2010
Thanks for everything
written by Bhanu , March 31, 2010
In sql query i what to enter date of birth,for this i have used datetime datatype but after entering the records i see the time also.I want only date.In sql if i give date datatype its not accepting..plz help me.
written by Raj Kumar Khatri , May 25, 2010
Column, parameter, or variable #31: Cannot specify a column width on data type image. while making stored procedure this type of error occured in image column.
written by Jonesmus , June 07, 2010
Hi everyone, Am new in spl world and am seeking help. How do i bring data in to MS SQL SERVER 2005 object explorer for use? I cant see my data on this window although i have put in the data folder where the program is installed. Can someone please help.
written by bobbobbob , July 09, 2010
loving these crazy comments/incorrectly spelled questions "how to create and how access a SQLserver 2005 " what's that all about? "Am new in spl world and am seeking help. " Sounds exciting "I am planning to do MCTS certification for sql 2005. Can anyone get me some study materials for that?" hold on, I'll send you all my materials.
written by bobbobbob , July 09, 2010
You're some boy for one boy.
written by Jesus Olazar , July 09, 2010
Does anyone know where I can get a copy of the internet on DVD or CD. If possible just the indian version with all the stuff.
written by bobbobbob , July 09, 2010
You can get the internet downloaded onto multiple DVDs if you know where to look
written by Jesus Olazar , July 09, 2010
I don't know where to look. Where should I look?
written by bobbobbob , July 09, 2010
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written by sakshy , July 12, 2010
i want to learn how to operate sql server 2005,how to create table n all
written by svp1234 , July 21, 2010
hi, can i save a image or diagram using nvarchar(max)in the database
written by SHIVAM , September 04, 2010
THERE IS PROBLEM WITH CHARACTER DATATYPE PLZ HELP ME(ERROR IS UNDEFINED DATATYPE) Do you need more help? Ask now!
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