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Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
Divers
Thread ID:
00409807
Message ID:
00410079
Vues:
34
>> Overall, however, the difference was in the 1000ths of a second, so it ain't something that folks should go running off and doing thinking that it will help their queries.

George,

I'm getting confused, I thought your commetn was that LogicalField = .T. took longer than simply LogicalField. If that was your comment then it is fairly obvious that;

LogicalField=.T. requires that VFP evaluate the Logical Field and then evaluate the comaprison of that field to the literal .T. while the later only requires that VFP evaluate the logical field. That is the former takes two processes while the latter only needs one. Since a logical field IS a logical expression it is not necessary to compare it to a value to get an expression.
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