SQLautocommit

When this parameter is set to true (the default), any change to the database is sent immediately. Otherwise, if transactions are supported by the database, changes are retained until a call to SQLcommit (commit changes) or SQLrollback (discard changes) is issued. The value of this parameter is used at the time the database is open with SQLconnect: once connection is established, changing this parameter has no impact on the existing connections ( i.e. they remain in their initial transaction mode)

Boolean, read/write

true	Enable auto commit mode.
false	Disable auto commit mode ( i.e. transactions).

true

SQLconnect.

mmodbc