appending with (nolock) to the SQL
Using D6, RB Enterprise 7 against MSSQL Server 2000.
I have a lot of reports, some of them access a heavy load of data, and
therefore causing locks on the tables. More worse, lock escalation can
occur. In my app, I have quietened my Sql statements by adding "with
(nolock)" to the table names. I want to do this with the reports too, but I
am unsure how to achieve this. I am sure, this is not possible using DADE
only.
My preferred solution therefore would be a RAP function I can call in some
event:
Function AddWithNoLock(Report: TppReport; sTableName: String):Boolean;
How can I isolate the sql-statement before execution but after the auto
search fields are set and how can I write back the modified sql-statement?
Thank you for every opinion.
Bernd
I have a lot of reports, some of them access a heavy load of data, and
therefore causing locks on the tables. More worse, lock escalation can
occur. In my app, I have quietened my Sql statements by adding "with
(nolock)" to the table names. I want to do this with the reports too, but I
am unsure how to achieve this. I am sure, this is not possible using DADE
only.
My preferred solution therefore would be a RAP function I can call in some
event:
Function AddWithNoLock(Report: TppReport; sTableName: String):Boolean;
How can I isolate the sql-statement before execution but after the auto
search fields are set and how can I write back the modified sql-statement?
Thank you for every opinion.
Bernd
This discussion has been closed.
Comments
Unfortunately you will not be able to do this in RAP. You could possibly
add some code to the DADE plugin you are using to connect to the database.
I assume you are using ADO, so you could take a look inside the daADO.pas
file and find the TdaADOQueryDataView.SQLChanged method. This is where the
sql text is extracted and then assigned to the query. Before the
SQL.MagicSQLText is assigned to the query (at the bottom), you could add
some code to place your nolock code in the sql.
--
Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com