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I need to write a Table - valued function from which I can acquire a table result set with different structure each time. another thing is that I need to declare variables inside my function . I've search for more that 3 hours but I could not find anything regarding this issue. Is there any way to do that? Thanks in advance

  • Please it is not clear what are you trying to achieve. Try to improve your question by adding some example. – McNets Oct 8 '18 at 7:15
  • Sounds like you want a stored procedure using dynamic SQL, not a table-valued function (functions can't use dynamic SQL, and inline TVFs - the only ones that benefit performance-wise from being functions - can't use local variables). – Aaron Bertrand Oct 8 '18 at 13:26
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The schema (column names, data types, etc) returned by a TVF (or view) is determined when the object is created. It cannot be dynamic, varying at execution time.

Views and TVFs should be used logically much like a table, where the schema is a contract between the database and application. It will wreak havoc if columns come and go or change between executions.

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