I want to create a new table in SQL Server with the following query. I am unable to understand why this query doesn\'t work.
I know Oracle RDMS can\'t merge a view that has a set operator in it. I want to know why 开发者_如何学Gois that.
This SO post detai开发者_开发知识库ls some benefits in performance regarding Derived vs. Temporary tables.
I have a Patient table: PatientIdAdmitted ------------------------ 1d/m/yy hh:mm:ss 2d/m/yy hh:mm:ss 3d/m/yy hh:mm:ss
I\'ve recently noticed that a query I have is running quite slowly, at almost 1 second per query. The query looks like this
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