Net.Data Administration and Programming Guide for OS/400

Running the SQL Language Environment under Commitment Control

The SQL language environment by default runs under commitment control and follows all rules for governing commitment control.

• Journal all files or tables that are accessed through the DTW_SQL, except when the SQL statement is SELECT.

  If you are accessing an SQL table in a collection, it is automatically journalled for you through the native SQL support on the AS/400 and no explicit action is required.

• Optionally change the commitment level by specifying DTW_SQL_ISOLATION in the Net.Data initialization file. See Configuring the SQL Language Environment for details about the isolation levels that the SQL language environment supports.