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Linking Fox and Oracle
Message
 
 
À
11/06/1999 08:21:16
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00227943
Message ID:
00229058
Vues:
26
I see a contradiction here. :-) You have to use standard SQL for SQL pass-thru versus Oracle SQL is not very compliant to the SQL-92
standard
. While I am not sure what the standard is, I always thought the SQL used by Oracle is the actual standard because it has been around years longer than the SQL available in VFP. MS just came up with a standard of their own for VFP. It is the ODBC drivers that actually convert from VFP syntax to Oracle SQL syntax.

Personally, I like the VFP version better because it is easier to understand, IMHO. I always got the plus-signs screwed up in Oracle. You can use VFP syntax in SQL Pass-thru because [as long as] the ODBC drivers are still being used as an intermediate step to Oracle.

>Oracle has its own extension of SQL called SQL/PL (PL = procedure
>language). As far as I know, you can only use standard SQL when
>utilizing VFP and Oracle via SQL Passthru.
>
>You will find that Oralce SQL is not very compliant to the SQL-92
>standard. This kind of surprised me. To see what I mean, compare
>and contrast a LEFT OUTER JOIN between SQL Server and Fox versus
>Oracle's (+) command.
Mark McCasland
Midlothian, TX USA
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