IDENTITY

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IDENTITY

Igor Micev

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February 18, 2014 at 9:45 pm

#288247

Comments posted to this topic are about the item IDENTITY
Igor Micev,My blog: www.igormicev.com
February 19, 2014 at 3:22 am

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free_mascot One Orange Chip Points: 27169 More actions · Answer 1

Good question Igor, thanks.

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Koen Verbeeck SSC Guru Points: 259085 More actions · Answer 2

Nice question, thanks.

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SQLRNNR SSC Guru Points: 281334 More actions · Answer 3

Nice question. I wonder how many people have used identity in this way (select into...).

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Carlo Romagnano SSC-Insane Points: 22600 More actions · Answer 4

SQLRNNR (2/19/2014)
I wonder how many people have used identity in this way (select into...).

Just one per year!

😉

Igor Micev SSC-Dedicated Points: 33109 More actions · Answer 5

SQLRNNR (2/19/2014)
Nice question. I wonder how many people have used identity in this way (select into...).

It's used in migrations. For example if you have to migrate users from one system to another and want to start the identity from a particular position then it comes in use. There other examples as well.

Regards,

Igor

Igor Micev,My blog: www.igormicev.com

Umer Akram SSC-Insane Points: 22209 More actions · Answer 6

Umer Akram

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Points: 22209

February 19, 2014 at 3:30 am

#1690189

nice question Igor. Thanks for sharing

Ed Wagner SSC Guru Points: 287024 More actions · Answer 7

Good question, thanks. It isn't a very common thing to use (at least for me) but it's a handy tool to have when needed.

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TomThomson SSC Guru Points: 104773 More actions · Answer 8

Nice question.

I sat there for five minutes staring at it looking for the catch, before deciding that there wasn't one.

Tom

Ron McCullough SSC Guru Points: 63877 More actions · Answer 9

TomThomson (2/19/2014)
Nice question.
I sat there for five minutes staring at it looking for the catch, before deciding that there wasn't one.

+1

If everything seems to be going well, you have obviously overlooked something.

Ron

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Thomas Abraham SSChampion Points: 10761 More actions · Answer 10

Good question. Thanks Igor.

If you want numbers for your records in a SELECT, why not use:

ROW_NUMBER ( ) OVER ( <partition_by_clause> <order_by_clause> )

in the query?

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Carlo Romagnano SSC-Insane Points: 22600 More actions · Answer 11

Thomas Abraham (2/19/2014)
Good question. Thanks Igor.
If you want numbers for your records in a SELECT, why not use:
ROW_NUMBER ( ) OVER ( <partition_by_clause> <order_by_clause> )
in the query?

Because in the SELECT INTO the created field should be of type INT with attribute IDENTITY.

ROW_NUMBER creates just an INT.

SQLRNNR SSC Guru Points: 281334 More actions · Answer 12

Igor Micev (2/19/2014)
SQLRNNR (2/19/2014)
Nice question. I wonder how many people have used identity in this way (select into...).
It's used in migrations. For example if you have to migrate users from one system to another and want to start the identity from a particular position then it comes in use. There other examples as well.
Regards,
Igor

I use it all the time for various things including migrations. It's a nice trick to have in the bag.;-)

Jason...AKA CirqueDeSQLeil
_______________________________________________
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Revenant SSC-Forever Points: 42467 More actions · Answer 13

bitbucket-25253 (2/19/2014)
TomThomson (2/19/2014)
Nice question.
I sat there for five minutes staring at it looking for the catch, before deciding that there wasn't one.
+1

+1 - sometimes simple questions are difficult to answer.

Thanks for the QotD, Igor!