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Purpose
Constants that can be used to determine whether Workload Capture and Replay are currently active.
This package was present in 21.1 but was dropped as of 21.3.
AUTHID
N/A
Constants
Name
Data Type
Value
Capture_On
BOOLEAN
(dbms_workload_capture.get_state()=1);
Replay_On
BOOLEAN
(dbms_workload_replay.get_state()=1);
Dependencies
DBMS_RANDOM
DBMS_WRR_STATE_BASE
Documented
No
First Available
12.2
Pragma
PRAGMA restrict_references(dbms_wrr_state, WNDS);
Security Model
Owned by SYS with EXECUTE granted to the DBA and EXECUTE_CATALOG_ROLE roles.
The following demo code is from $ORACLE_HOME/rdbms/admin/dbmsrand.sql and shows how these constants are used.
FUNCTION value RETURN NUMBER PARALLEL_ENABLE IS
randval NUMBER;
BEGIN
IF sys.dbms_wrr_state.Replay_On THEN
randval := replay_random_number();
IF randval IS NOT NULL THEN
RETURN randval;
END IF;
END IF;
counter := counter + 1;
IF counter >= 55 THEN
-- initialize if needed
IF (need_init = TRUE) THEN
seed(TO_CHAR(SYSDATE,'MM-DD-YYYY HH24:MI:SS') || USER || USERENV('SESSIONID'));
ELSE
-- need to generate 55 more results
FOR i IN 0..30 LOOP
randval := mem(i+24) + mem(i);
IF (randval >= 1.0) THEN
randval := randval - 1.0;
END IF;
mem(i) := randval;
END LOOP;
FOR i IN 31..54 LOOP
randval := mem(i-31) + mem(i);
IF (randval >= 1.0) THEN
randval := randval - 1.0;
END IF;
mem(i) := randval;
END LOOP;
END IF;
counter := 0;
END IF;
IF sys.dbms_wrr_state.Capture_On THEN
record_random_number(mem(counter));
END IF;
