Arthur Fuller explores the value of identity columns and the usefulness of their arbitrary values and discusses ways to use SQL Server 2000's IDENTITY_INSERT setting.

How to Reset an Identity Seed in Microsoft SQL. Sometimes, as when testing a table in a Microsoft SQL Server database, you need to reset an identity column to its initial seed value, typically one.

This method won't work in SQL Server, but Microsoft's Trans. ... Transact-SQL will create a new table with all columns from the rows in "old_table" in which the last name starts with "Ja." ...

That being the case, you’ll need a couple additional columns of datetime2 data type, the VALIDFROM and VALIDTO columns, which tells SQL Server which snapshot of the temporal table to use when querying ...