create table t1 (a int);drop table if exists t1;Warnings:Note 1051 Unknown table 't1'select * from t1;ERROR 42S02: Table 'test.t1' doesn't existcreate table t1 (a int);insert into t1 values(1);delete from t1;select * from t1;ainsert into t1 values(1);insert into t1 values(2);update t1 set a=2;select * from t1;a22drop table t1;