Description
Specifies the internal blocking factor used by the SAP Sybase Client Library (CT-Lib) interface when declaring a cursor. The blocking factor determines the number of rows fetched from the database at one time when CT-Lib makes a physical request for data.
The Block DBParm parameter applies only to declared cursors and not to DataWindow objects.
Applies to
ASE and SYC SAP Adaptive Server Enterprise
Syntax
Block=blocking_factor
|
Parameter |
Description |
|---|---|
|
blocking_factor |
The number of rows fetched from the database at one time when CT-Lib makes a physical request for data (default=100 rows) |
Default value
Block=100
Examples
Example 1
To set the blocking factor to 1000 rows:
-
Database profile
Type the following in the Retrieve Blocking Factor box on the Transaction page in the Database Profile Setup dialog box:
1000
-
Application
Type the following in code:
SQLCA.DBParm="Block=1000"
Example 2
The following embedded SQL statements show how to set the blocking factor in code and use it to declare a cursor. These statements set the blocking factor to 1000 rows and declare a cursor that uses this internal blocking factor.
SQLCA.DBParm="Block=1000"
DECLARE dept_cursor CURSOR FOR
SELECT dept_id, dept_name FROM department
USING SQLCA;
OPEN dept_cursor;