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  • From: "Lowden, James K" <LowdenJK AT bernstein.com>
  • To: "FreeTDS Development Group" <freetds AT lists.ibiblio.org>
  • Subject: Re: [freetds] mssql and php via odbc ...
  • Date: Thu, 18 Aug 2005 11:59:14 -0400

> From: C.Lee Taylor
> Sent: Thursday, August 18, 2005 11:37 AM
>
> This is a not a bug report, seeing that I believe since
> mssql v7sp4, including mssql 2K, returning the number of
> records in a result set, requires RPC calls.

The number of rows in a resultset is not known to the *server* until the
last one has been transmitted to the client. It is impossible -- with
any version of any Sybase or Microsoft server -- to know the size of a
resultset in advance.

For any insert/update/delete, the server returns "rows affected".
Obviously, the rowcount of a select statement can be captured by first
inserting the rows in a temporary table (INSERT INTO ... SELECT ...) .

> Is there any work be done on this or an ETA, it's hold up
> a move fron Win2K/IIS to Linux/Apache ...

I think if you dig a little deeper, you'll find someone, somewhere is
buffering the rows and providing a count. If you can identify the
specific API and function call that works one way on IIS and another on
Apache, we can at least put it on the TODO.

HTH.

--jkl

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