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  SQL Server Tips by Gama and Naughter

Using Query Analyzer

Query Analyzer is a great tool for debugging SP’s and testing TSQL statements.
This will be useful for testing XP’s as well because they are often wrapped by SP’s or UDF’s.

An interesting detail about the GUI is that the selected code (with a blue background) is the only code in the editor affected by the “execute” or “parse” actions. Unless there is no selection and therefore it affects all the code.

The Parse Query button tests TSQL code for syntax errors, it will return no errors if the code is syntactically correct, even if logically incorrect. For example, the following code is a valid SELECT statement:

However, the table tblTest does not exist and the code returns an error when executed:

Both parse and execute commands will only execute the selected text:

If there were no selection then both statements would execute.


The above book excerpt is from:

Super SQL Server Systems
Turbocharge Database Performance with C++ External Procedures

ISBN: 0-9761573-2-2
Joseph Gama, P. J. Naughter

 http://www.rampant-books.com/book_2005_2_sql_server_external_procedures.htm  

 

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