@@IDENTITY vs SCOPE_IDENTITY() vs IDENT_CURRENT [s

2020-04-27 04:49发布

问题:

Which should i use to get last inserted record id in sql server 2005?

I searched stackoverflow and i found this,

SQL: How to get the id of values I just INSERTed?

Comment of the best answer:

there are known bugs with SCOPE_IDENTITY() in sql server 2005, not sure about 2008, the OUTPUT clause can return a set of IDs if necessary...

Select SCOPE_IDENTITY() as Id from Table

I am uisng sql server 2005... Any suggestion

回答1:

I'm not entirely sure what these "knows bugs" in SCOPE_IDENTITY() should be. The only thing I'm currently aware of is here: Six reasons you should be nervous about parallelism mentioned as the very first point.



回答2:

Triggers

Using @@identity is reliant on the fact that there are no triggers in your database creating records elsewhere.

If you create a record but a trigger then creates a log entry for the creation, @@identity will return you the id of the log entry in the log table.