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How do I add a row number to a reusable table w/in script?

Posted on 2008-10-12
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Last Modified: 2012-05-05
Hi,

I like to add a row number to a reusable table w/in a script w/ cursor.  So far, I'm using a table variable bc the table holds less than 100 rows.  I like one column to show the rowcount, but if I create the field as an identity field and delete the rows each time, the row number does not reset to one.  any work arounds?  Thx.
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Question by:skip1000
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Expert Comment

by:Cvijo123
ID: 22700423
in SQL 2000 there is bit harder but you can do liek this


SELECT IDENTITY(int, 1, 1) AS rownumber, fieldName1, fieldName2 INTO #tmp FROM yourTable

SELECT * FROM #tmp
DROP TABLE #tmp


NOTE: keep in mind that when u selecting row from your table u cannot select identity column becouse there cant be 2 identity columns in table wich will be case in your #tmp
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Goodangel Matope earned 125 total points
ID: 22700425
Instead of DELETING from the table, you could use TRUNCATE TABLE, it resets the identity to 1.

in order to do the rownumber dynamically, you can check out the following

http://support.microsoft.com/?id=186133
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LVL 5

Expert Comment

by:Cvijo123
ID: 22700427
but u can have workaround for your real identity in select statment i just tested it and it worked

so:

SELECT IDENTITY(int, 1, 1) AS rownumber, cast( yourIDColumn as int), fieldName2 INTO #tmp FROM yourTable

SELECT * FROM #tmp
DROP TABLE #tmp
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Author Comment

by:skip1000
ID: 22700544
Seems like no solution if using table variable.  I don't mind temp tables as long as they don't stuff up and get orphaned, which happens all the time.  truncating temp table seems like next easiest solution tho.  thx.
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