>Hi everyone,
>
>Here is my problem:
>
>I want to find when duplicated records are mistakenly created by my application.
>
>So I plan to check my database before the user gets into the application and after he/she exists.
>
>The database contains employee schedules. Each record contains the position number (PosNum), the date of shift (Djh) and a number indicating which day was used to generate that particular record (Njh). I have about 50,000 records.
>
>And this is the SELECT statement:
>

>    SELECT cHorPosNum, dHorDjh, nHorNjh, COUNT(*) AS CNT ;
>      FROM Horaire ;
>     GROUP BY cHorPosNum, dHorDjh, nHorNjh ;
>    HAVING CNT > 1
>

>
>The combinaison of cHorPosNum+dtos(dHorDjh)+str(nHorNjh,3) should be unique.
>
>I already have the following index tags:
>DHORDJH,
>CHORPOSNUM,
>CHORPOSNUM+DTOS(DHORDJH)+STR(NHORNJH,3)
>
>On a my pc it takes about 1.5 seconds to complete
>for my users are on a 10Bt network it will be longer but acceptable
>but for other users who are on a RNIS network it may be too long.
>
>Does anyone have an idea on how I can optimize this search.
>
>Remember this this is fpw 2.6 code.
>
>Thanks in advance

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