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DROP TABLE IF EXISTS t1; CREATE TABLE t1 (a INT, b VARCHAR(20)) ENGINE=FILESYSTEM,FILE="../../filesystem_ln/basic_update.data"; INSERT INTO t1 VALUES (222, "bbb"); INSERT INTO t1 VALUES (333, "ccc"); INSERT INTO t1 VALUES (444, "ddd"); UPDATE t1 SET a=999 WHERE a=444; UPDATE t1 SET b="zzz" WHERE a=222; SELECT * FROM t1; a b 222 zzz 999 ddd 111 aaa 333 ccc DELETE FROM t1 WHERE a!=111; DROP TABLE t1; |