I have googled this problem one week and no thing useful I think am not using the correct word
I am using SQL Server 2008 with t-sql and my need is to optimise my function when I insert a new row.
I have a table with first column is the key of integer autoincrement type and other columns are just for information
When we do an insert, SQL Server increments the key automatically and I have to do a select max to get the value, so is there a way like a global variable like @@IDENTITY
or a function to avoid the begin end transaction and select max
Use SCOPE_IDENTITY
:
-- do insert
SELECT SCOPE_IDENTITY();
Which will give you:
The last identity value inserted into an identity column in the same scope. A scope is a module: a stored procedure, trigger, function, or batch. Therefore, two statements are in the same scope if they are in the same stored procedure, function, or batch.