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SQL Default lock mode
SQL
Download
(.zip)
USE PUBS
SET TRANSACTION ISOLATION LEVEL READ COMMITTED
BEGIN TRAN
SELECT * FROM authors
WHERE au_lname = 'Ringer'
EXEC sp_lock2 @@spid
COMMIT TRAN
SQL
Default lock mode
Locks for table creation
Repeatable read mode
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row locks
serializable mode
sp_blockinglocks
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sp_leadblocker
sp_lock2
Update in serializable mode no index
SQL
Update in serializable mode with index
Update locks