You need to look at the way they both work. Used in tempdb, SELECT INTO is no more contentious than that of an INSERT INTO in post SQL2000 SP3 (Microsoft SQL Server, Error:1222) I tried through scripts and GUI but luck not work even I extend the lock request time out also but didnt get any. SELECT INTO never blocked anything in tempdb. First, lets investigate what is doing SQL Server Management Studio to fill up the list of the tables, using SQL Server Profiler of Azure Data Studio. > Lock Request Time out period exceeded. SELECT INTO used to ecrease contention in tempdb of SQL2000 and pre. I have to assume overall, a SELECT INTO is more contentious than that of an INSERT INTO however would love some true backing to confirm as the amount of work ahead to make these changes is quite substantial.įrom what i remember, the SELECT INTO issue with sys tables "locking" in tempdb was resolved long ago, i would say that fix is here since SQL200 SP3. Obviously this makes us want to recommend removing all the SELECT INTOâs however would like either of your opinions on this topic while we continue to investigate and test. If you deem that query inconsequential, then you can kill it using kill .'LOCK request timeout period exceeded.' But the same trigger has been ALTER/DROP in other database containing same table. Once you identify this, you can use dbcc inputbuffer (spid) to find out what query/command it is doing that has taken a lock on this table. an INSERT INTO yield more tempdb allocations? More specifically when we did a SELECT INTO, we saw over tens of thousands of tempdb allocations (sys.dm_db_task_space_usage) however when using an INSERT INTO, we saw none. 1 I could not ALTER the trigger as its taking more then 80 min, and cannot delete/drop also, while trying to do this from Designer mode it shows erroe as -> Drop Failed for trigger. To handle such stored procedures, you should drop down to the. We're now starting to dissect performance between SELECT INTO and INSERT INTO and could use some guidance. the deadlock victim/ > SerializationFailure, /Lock request time out period exceeded. After some more digging and testing, it would seem that a SELECT INTO does indeed lock some of the system tables.
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