1
DROP TABLE IF EXISTS t1;
2
CREATE TABLE t1 (a INT, b VARCHAR(20)) ENGINE=FILESYSTEM,FILE="../../filesystem_ln/basic_update.data";
3
INSERT INTO t1 VALUES (222, "bbb");
4
INSERT INTO t1 VALUES (333, "ccc");
5
INSERT INTO t1 VALUES (444, "ddd");
6
UPDATE t1 SET a=999 WHERE a=444;
7
UPDATE t1 SET b="zzz" WHERE a=222;
14
DELETE FROM t1 WHERE a!=111;