- starts by blocking inserts on a table,
- selects rows on the same table and validates that an INSERT does not violate business rules,
- performs the insert,
- updates another table for a specific row (this update only occurs on an insert), and
- commits the transaction.
Why do you want to block all inserts into a table when you are inserting another row into that table? This is a...
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serious scalability problem and should only be used in very explicit situations and off the top of my head, I can't come up with a single application amongst the thousands of applications I've worked on that needed to lock an entire table from inserts.
As far as the code goes, I'll refer you to Books Online. This is nothing different than writing insert, update and select statements.
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