Removes one or more table definitions and all data indexes triggers constraints and permission specifications for those tables. I have received following questions numerous times.
None of these things prevent temporary table caching so it does not matter whether you explicitly drop a temporary table at the end of a procedure or not.
Drop temp table. Drop table if exists lusensorname19 create table lusensorname19. Dropping a temporary table in a procedure does not count as ddl and neither does truncate table nor update statistics. If youre here then youve probably run into the situation where youve automatically created a temp table in your script and every time you execute the script you have to drop the temp table manually.
If objectidtempdblusensorname19 is not null begin drop table lusensorname19 end create table lusensorname19. End try begin catch take care of the exception you can even throw the message to the caller if you like print errormessage. Then you can create same temporary table if you want.
End catch if statements and heavy use of temptables in a stored procedure may cause a recompile on every call. You can use drop if exists to drop any temporary table as well if it exists. So heres the easy solution.
Yes this can be a pain. Sql server 2016 added the ability to do the drop in one line. This is require when youve created a temp table in your script and every time you execute the script you have to drop the temp table manually.
Temp tables are created in tempdb. Sql server how to drop temp table check existence of temp table. In sql server 2016 and higher.
Begin try drop table sometemptbl. Drop table transact sql 05122017. How to check existence of temp table in sql server database.
Ive done this myself many times. Drop a temporary table if it is already created or exists. By adding if exists to the drop statement you can drop the object only when it exists in the database.
The use of temporary tables or temp tables in sql terms is common in sql but once were done with those tables they should be deleted or dropped. Sql server azure sql database azure synapse analytics sql dw parallel data warehouse. Sql sql server sql tips and tricks.
In sql server 2016 microsoft introduced diy or drop if exists functionality. 3 minutes to read 1. Sql drop temp table if exists.
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