How can I reseed an identity column in a T-SQL table variable?

Question

I have a T-SQL table variable (not a table) which has an auto incrementing identity column. I want to clear all data from this variable and reset the identi

Answer 1

If you need to truncate the table variable in each turn of a while loop, you can put the declare @myTbl (...) statement in the loop. This will recreate the table and reset the identity column on each turn of the loop. However, it has a heavy performance hit. I had fairly tight loop, and redeclaring the table variable relative to delete @myTbl was several times slower.

• Dan