In Version 3.0, DataWindow performance was improved by using bind variables for retrieval statements. In Version 4.0, bind variable support has been added in PowerScript SQL and DataWindow updates for all DBMSs that support bind variables (currently, ODBC, Watcom, Oracle, and Gupta). This will improve the performance of PowerScript SQL and DataWindows and allow PowerBuilder to insert and modify strings in excess of 255 characters (currently this only applies to Oracle and Watcom databases). Bind variables eliminate the limitation of 255 characters for quoted strings.
By default, the bind input variables option is enabled (DBParm variable DisableBind is set to 0) when the DBMS supports bind variables.