| Basic Functionality |
Flashback Version Query
|
SELECT <columns>
FROM <schema_name.table_name>
VERSIONS BETWEEN SCN <minimum_scn> AND <maximum_scn>
[WHERE <column_filter>]
[GROUP BY <non-aggregated_columns>]
[HAVING <group filter>
[ORDER BY <position_numbers_or_column_names>] |
conn uwclass/uwclass
CREATE TABLE t AS
SELECT owner, object_name, object_type
FROM all_objects
WHERE 1=2;
desc t
DECLARE
CURSOR fvq_cur IS
SELECT owner, object_name, object_type
FROM all_objects
WHERE rownum < 11;
BEGIN
FOR r IN fvq_cur LOOP
INSERT INTO t
VALUES r;
COMMIT; -- this is a bad
practice done here intentionally
END LOOP; -- otherwise never do
incremental commits
END;
/
set linesize 121
SELECT * FROM t;
SELECT versions_xid, versions_startscn, versions_endscn, versions_operation,
owner, object_name, object_type
FROM t
VERSIONS BETWEEN SCN MINVALUE AND MAXVALUE;
UPDATE t
SET object_type = 'VIEW'
WHERE object_name = 'DUAL'
AND object_type = 'TABLE';
COMMIT;
UPDATE t
SET object_type = 'PROCEDURE'
WHERE object_name = 'DUAL'
AND object_type = 'VIEW';
COMMIT;
UPDATE t
SET object_type = 'FUNCTION'
WHERE object_name = 'DUAL'
AND object_type = 'PROCEDURE';
COMMIT;
DELETE FROM t
WHERE object_name = 'DUAL'
AND object_type = 'PROCEDURE';
COMMIT;
SELECT versions_xid, versions_startscn, versions_endscn,
versions_operation, rowid, owner, object_name, object_type
FROM t
VERSIONS BETWEEN SCN MINVALUE AND MAXVALUE;
SELECT owner, object_name, object_type
FROM t
VERSIONS BETWEEN SCN MINVALUE AND MAXVALUE
WHERE (rowid = 'AAAPHdAAGAAABgqAAA'
OR object_type = 'FUNCTION');
SELECT owner, object_name, object_type
FROM t
VERSIONS BETWEEN SCN 5610589 AND
5610595
WHERE (rowid = 'AAAPHdAAGAAABgqAAA'
OR object_type = 'FUNCTION'); |
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