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If you can guarantee that you are dealing with small data sets, go crazy. Thursday, Octo10:45:36 AM - Daniel JohnsonĬTEs and table variables do not scale. SELECT customerid,max(orderdate) lastorderdate No need to create the temp table then insert into it. Improving SQL Server performance when using table variablesĭifferences between SQL Server temporary tables and table variables More information on temporary tables and table variablesĬreate SQL Server temporary tables with the correct collation.Recursive Queries using CTEs in SQL Server
#Sql server temp table how to#
How to use SQL Server CTEs to make your TSQL code readable by humans
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In this tip we will go through a few simple SELECT queries in order to compare the One of theĬomments suggested comparing these results to using a Common Table Expression (CTE) for similar operations. Table and a table variable for a few different DML operations. Previous tips we looked at the SQL Server performance differences between using a temp By: Ben Snaidero | Updated: | Comments (9) | Related: More > TSQL