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SQL Server Hierarchical Query

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SQL Server Tsql CTE Common Table Expressions

CTE: CTE’s (SQL Common Table Expression ) are more like temporary views than anything else. When you look at the execution plan, you’ll see that they are substituted/inlined into the query but not materialized and stored anywhere. With the exception of recursion, they’re more to make queries simpler to write than faster to run.

CTE: CTE’s are more like temporary views than anything else. When you look at the execution plan, you’ll see that they are substituted/inlined into the query but not materialized and stored anywhere. With the exception of recursion, they’re more to make queries simpler to write than faster to run.

Example below

Say Query is below which … Read the rest