We use a separate table to maintain the nextID for all the tables.
> -----Original Message-----
> From: Tony Blomfield [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, November 03, 1999 3:47 PM
> To: Multiple recipients of list delphi
> Subject: [DUG]: Generators - Sequences, and Identities
>
> Unless I have missunderstood, SQL7 has no equivolent of Interbases
> generators, or Oracles Sequences? Instead it has the identity data type
> which is akin to Access or paradox Autoincrement columns.
>
> The only time you seem to be able to see what your identity value was/is
> is
> immediatly following a insert statement.
>
> Coming form an Interbase background for the last few years, this idea of
> identity columns looks very decadent, and extremely shortsighted of
> MS/Sybase, and really surprised me that it is still like this.
>
> So what about the multi user situation. Can we guarantee that Select
> Identity@@ will allways get the last identity for this specific user?
>
> What a dumb dumb idea. It more or less completely ignores the concept of
> using surrogate keys.
>
> What do others do about this for MSSQL based Delphi Apps? It seems to me
> that the only reasonable approach is to use an increment table, and
> copmpletely abandon the Indentity concept. What are others doing here?
>
> Thanks,
>
> Tony.
>
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