connection node_2;
connection node_1;
CREATE TABLE t1 (f1 INTEGER PRIMARY KEY);
START TRANSACTION;
INSERT INTO t1 VALUES (1 );
SAVEPOINT sp1;
INSERT INTO t1 VALUES (2 );
ROLLBACK TO SAVEPOINT sp1;
COMMIT;
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
1
connection node_2;
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
1
connection node_1;
DELETE FROM t1;
START TRANSACTION;
SAVEPOINT sp1;
INSERT INTO t1 VALUES (1 );
SAVEPOINT sp2;
INSERT INTO t1 VALUES (2 );
ROLLBACK TO SAVEPOINT sp2;
ROLLBACK TO SAVEPOINT sp1;
COMMIT;
SELECT COUNT(*) = 0 FROM t1;
COUNT(*) = 0
1
connection node_2;
SELECT COUNT(*) = 0 FROM t1;
COUNT(*) = 0
1
connection node_1;
DELETE FROM t1;
START TRANSACTION;
SAVEPOINT sp1;
INSERT INTO t1 VALUES (1 );
INSERT INTO t1 VALUES (2 );
INSERT INTO t1 VALUES (3 );
INSERT INTO t1 VALUES (4 );
SAVEPOINT sp2;
INSERT INTO t1 VALUES (5 );
ROLLBACK TO SAVEPOINT sp2;
INSERT INTO t1 VALUES (6 );
INSERT INTO t1 VALUES (7 );
ROLLBACK TO SAVEPOINT sp1;
INSERT INTO t1 VALUES (8 );
COMMIT;
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
1
connection node_2;
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
1
DROP TABLE t1;
Messung V0.5 in Prozent C=31 H=100 G=73
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
*© Formatika GbR, Deutschland