Optimizes memory consumption when using Oracle, PostgreSQL,
DB2, or SQL Server ADO.NET providers. Also applies the same data integrity rules on all databases for embedded SQL cursors that use WITH HOLD and FOR
UPDATE clauses for
both
DBMAN=ODBC and DBMAN=ADO.
Syntax:
OPTIMIZECURSORS={YES|NO}
Parameters:
- YES
- Optimize cursors. This can result in considerable memory savings and performance gains for large result sets, and also ensures
that SQL cursors that use WITH HOLD and FOR UPDATE clauses have appropriate database locks when positioned updates/deletes
occur.
When used with DBMAN=ADO, this option uses a DataReader (or server cursor) instead of a DataSet if the cursor is FORWARD only.
- NO
- Provided for backward compatibility. Sets the behavior to that of
Visual COBOL versions before 3.0.
Dependencies:
To use OPTIMIZECURSORS, you must set DBMAN to
either ADO or
ODBC explicitly, or by setting an SQL compiler directive option that sets DBMAN to
ADO or
ODBC implicitly.
Scope:
| Used at compile time:
|
Yes
|
| Behavior at run time:
|
Source file
|
See
Scope - OpenESQL SQL Compiler Directive Options for more information.