class DB_CONTROL General cluster: interface create: make Ancestors DB_EXEC_USE DB_STATUS_USE NUMERIC_NULL_VALUE Queries error_code: INTEGER_32 error_message: STRING_8 exhausted: BOOLEAN immediate_execution: BOOLEAN is_connected: BOOLEAN is_ok: BOOLEAN is_tracing: BOOLEAN numeric_null_value: REAL_64 trace_output: FILE transaction_count: INTEGER_32 warning_message: STRING_8 Commands begin commit connect disconnect raise_error reset rollback set_immediate set_numeric_null_value (a_value: REAL_64) set_trace unset_immediate unset_trace