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Re: Storing time and search
Posted by: Paul Svirin
Date: September 03, 2009 03:00PM

As for me storing date like in approach 2) is not good. Because in approach 1) you can create and index and the optimizer will perform index seek while searching on that column.

For approach 2) the oprimizer cannot predict the value of TIME( <datetime_column> ). Thus the table scan will be selected for search.

For approach 1): create the char( 5 ) column and the index on it. It will work perfectly.

StarWind Software developer ( )

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Written By
July 03, 2009 01:18AM
Re: Storing time and search
September 03, 2009 03:00PM

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