create table testtb( id int not null primary key, name varchar(50), age int ); insert into testtb(id,name,age)values(1,'bb',13); select * from testtb; insert ignore into testtb(id,name,age)values(1,'aa',13); select * from testtb; replace into testtb(id,name,age)values(1,"aa",12); select * from testtb;
在YZM系统中怎么表达!