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shifis
Posting Yak Master
157 Posts |
 Posted - 2006-03-09 : 18:58:29
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| I need to know how to add an ID column, well actually a colum that start on 1 and continue counting something like a transaccion_number.Is there a special field that I can uses to do that? |
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tkizer
Almighty SQL Goddess
38200 Posts |
Posted - 2006-03-09 : 19:03:53
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| Yes. You can use the IDENTITY option on a column.Tara Kizeraka tduggan |
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activecrypt
Posting Yak Master
165 Posts |
Posted - 2006-03-09 : 21:43:37
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| Hi,refer identity and alter table statements in bol :E.g.:USE AdventureWorksIF OBJECT_ID ('dbo.new_employees', 'U') IS NOT NULL DROP TABLE new_employeesGOCREATE TABLE new_employees( id_num int IDENTITY(1,1), fname varchar (20), minit char(1), lname varchar(30))INSERT new_employees (fname, minit, lname)VALUES ('Karin', 'F', 'Josephs')INSERT new_employees (fname, minit, lname)VALUES ('Pirkko', 'O', 'Koskitalo')HTHRegardsAndy DavisSql Shield Team--------------------------------------------SQL Server Encryption Softwarehttp://www.sql-shield.com |
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a_r_satish
Yak Posting Veteran
84 Posts |
Posted - 2006-03-13 : 06:22:32
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| Use identity(seed,increment). In Seed specify the starting value and in the increment use the incremental value.Regards,satish.r"Known is a drop, Unknown is an Ocean" |
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nr
SQLTeam MVY
12543 Posts |
Posted - 2006-03-13 : 07:39:15
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| alter table mytable add seq int identity(1,1) not nullNote that this will add the identity column and populate it which can take a long time for a big table - during this time the table will be locked.You will also need to add a unique index to the column to ensure uniqueness.==========================================Cursors are useful if you don't know sql.DTS can be used in a similar way.Beer is not cold and it isn't fizzy. |
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Add ID field to a table