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Locking with SQL7
Message
From
29/02/2000 12:03:59
 
 
To
29/02/2000 11:49:23
Oleg Khvalin
The Sutherland Group Ltd
Rochester, New York, United States
General information
Forum:
Visual FoxPro
Category:
Client/server
Miscellaneous
Thread ID:
00338970
Message ID:
00339195
Views:
19
>Bob's solution does not address multiuser issue. You need to lock NumberTable or at least one row from this table (if it is possible).
>I'd create stored procedure for this job.
>Something along these lines:
>CREATE PROCEDURE GETID @tbl char(10) AS
>set nocount on
>declare @TempId int
>begin tran
>select @TempId = (select ID_Value from NumberTable (Tablockx HOLDLOCK) where TABLENAME=@tbl
>select @TempId = @TempId + 1
>update NumberTable SET ID_Value =@TempId where TABLENAME= @tbl
>select ID_Value from NumberTable where TABLENAME= @tbl
>commit tran
>
>In Fox code you just ask for next ID:
>=SQLExec(nConn, "GETID","curID")
>yourId=curID.ID_Value
>
>I locked the table, b/c I am working with 6.5, but in SQL Server 7 should be the way to lock just one row.
>


Oleg,
I think I get the point, Thanks !
- Do you know a resource on SQL7 stored procedures ?
- WHat's wrong with Bob's solution ? It seems to work allright for me, even in multiuser ...
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