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Bug #17068 MSSQL fails to open a SP using a cursor on query that contains an expression
Submitted: 2002-05-07 05:32 UTC Modified: 2002-07-19 01:00 UTC
Votes:2
Avg. Score:5.0 ± 0.0
Reproduced:2 of 2 (100.0%)
Same Version:0 (0.0%)
Same OS:1 (50.0%)
From: jasonh at trurocollege dot ac dot uk Assigned:
Status: No Feedback Package: MSSQL related
PHP Version: 4.2.0 OS: WinNT 5.0
Private report: No CVE-ID: None
View Developer Edit
 [2002-05-07 05:32 UTC] jasonh at trurocollege dot ac dot uk 
The MSSQL extension fails to even open (using mssql_query) a query on a stored procedure that uses a cursor on a query containing an expression.  The following SP works fine in Query Analyser (MSSQL7) but will not get past the mssql_query line in PHP.  The occurrence of the expression "id + 1" is, bizarrely, the apparent cause of the problem.  Changing this to just "id" makes it all work from PHP.

------------

CREATE PROCEDURE TestCursor AS

--This makes no difference:
-- set nocount on

declare c scroll cursor for
select id + 1 as newid from table

open c
fetch next from c

while (@@fetch_status = 0)
  fetch next from c

close c
deallocate c

-- set nocount off

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 [2002-05-07 05:35 UTC] derick@php.net 
Cursors are broken in 4.2.0, it is fixed in 4.2.1-dev. To test yourself can a stable snapshot from snaps.php.net/win32, or wait for 4.2.1 which will be released next week.

Derick
 [2002-07-18 21:45 UTC] hujbanan at yahoo dot com 
I have the same problem. I am using PHP statement mssql_query( "EXEC db_sequence 1, 2, 3, 1" ) {query B} to call stored procedure on MSSQL 2000 server, which produces output using cursor. Different is (against Jasons prob), that I use global cursor defined using mssql_query( "DECLARE  rowset CURSOR GLOBAL SCROLL FOR $query" ) {query A} because I need dynamically choose executed query. Statement {A} creates global cursor which is fetched and dropped in SP db_sequence {B}. When I uses as $query SQL command 'SELECT id FROM store', it works fine. But if I use something like 'SELECT id+1 AS col FROM store', PHP crashes. Both sequences of SQL queries run without problems in SQL Query Analyzer (SQL 2k).

I found this problem on PHP version 4.2.0 for win32. I try latest version of PHP from http://snaps.php.net/win32/ (both, stable v4.2.2-dev and unstable v4.3.0-dev) but problem persists. I'm using Apache 1.3.20/PHP 4.2.0 on Win2k advanced server. Can you tell me, what is wrong?
 [2002-07-19 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 
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