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Home » Article Discussions » Article Discussions by Author » Discuss content posted by dun » Identity Crisis
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dun
Posted Wednesday, October 28, 2009 9:31 PM
Mr or Mrs. 500

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Comments posted to this topic are about the item Identity Crisis
Post #810487
Joy Smith San
Posted Wednesday, October 28, 2009 10:45 PM
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Gud question. I had forgotten abt incremental value as I never use it. I always increment identity column with default value.
Post #810504
BudaCli
Posted Thursday, October 29, 2009 12:08 AM
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Nice one, realised my mistake after running the qry on management studio.

What you don't know won't hurt you but what you know will make you plan to know better
Post #810520
Carlo Romagnano
Posted Thursday, October 29, 2009 2:49 AM


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San-847017 (10/28/2009)
I always increment identity column with default value.

I used a seed = 1 and an increment of 5 and in another table seed = 2 and an increment of 5. So table A always has last digit = 1 or 6 and table B 2 and 7.
When I reference in table C the two table above, I know thanks to the last digit which table is linked.
Post #810572
daniel.surridge
Posted Thursday, October 29, 2009 3:56 AM
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In your explanation 'According to BOL, "If the table contains an identity column, the counter for that column is reset to the seed value defined for the column. If no seed was defined, the default value 1 is used."' you omit to say that this is for TRUNCATE.
Post #810604
kramaswamy
Posted Thursday, October 29, 2009 6:13 AM
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bah. automatically assumed it was seeded with increments of 1. i've never used a non-1 increment personally :/
Post #810678
Mark Harr
Posted Thursday, October 29, 2009 6:39 AM


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Shoot! I had the identity increment right, but forgot about truncate table resetting the seed value.



Mark
Post #810698
Michael Poppers
Posted Thursday, October 29, 2009 8:10 AM
Mr or Mrs. 500

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kramaswamy (10/29/2009)
bah. automatically assumed it was seeded with increments of 1. i've never used a non-1 increment personally :/

Ditto .
Post #810789
Michael Poppers
Posted Thursday, October 29, 2009 8:12 AM
Mr or Mrs. 500

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Mark Harr (10/29/2009)
Shoot! I had the identity increment right, but forgot about truncate table resetting the seed value.

There was a recent question which brought that point out (maybe Mark missed it ). I appreciate this question's showing an aspect of IDENTITY() with which I wasn't familiar.
Post #810792
SanjayAttray
Posted Thursday, October 29, 2009 9:27 AM
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Damn. I missed the increment/seed part. Generally we used (1,1) for identity column and its (1,3) in the question.

SQL DBA.
Post #810889
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