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Append or not to append, that is the Q!
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
01313927
Message ID:
01313994
Vues:
11
>>Glad you asked, look what I found out, and listen to my theory
>>
>>acctually the "curictfer" cursor is created using a SELECT statement against a REMOTE VIEW like a direct select within the Visual foxpro environment, and not as a SQLEXEC command against the Back end.
>>
>>I guess the first is slower than the second choice, right?
>>
>>after getting the Data then the code i just posted is performed using a SQLEXEC command for each one of the records on the cursor. even describing the procedure feels slow, doesn't it? LOL
>>
>>My theory is that if I change this behavior and instead of using a SELECT statement against a REMOTE VIEW like a direct select within the Visual foxpro environment, I change this and send a SQLEXEC to the backend and store the data on a TEMPDB table, then the second step, instead of using the SCAN and SQLEXEC command for each one of the records on the cursor to insert it to the back end i use a BULK insert using a INSERT INTO theTable SELECT * FROM #TempTable this would improve the speed a lot
>>
>>what do you think? am i right? or like we say in my country , I am so lost as a Dog in a 4th of July Parade?
>
>Yes that should be faster, but there is no need to have temp table. You could do this:
>
>TEXT TO lcSQL NOSHOW
>     INSERT INTO theTable
>     SELECT ......
>        FROM .....
>     WHERE ....
>ENDTEXT
>IF SQLEXEC(..., lcSQL) < 0
>   AERROR(laError)
>   MessageBox(laError[1,2])
>ENDIF
>
>Where SELECT ...... FROM ..... WHERE .... is the same select you would use to create temp table.

Yes!!! You are totally right! got a question though: TEXT...ENDTEXT works on VFP6?

Thanks a lot
.......
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      ME.Work()
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