php操作MYSQL 语句条件是越多越好还是越少越好呢 问一下 假如现在想update一下 sql1="update table set aa=aa where id=1"; sql2="update table set aa=aa where id=1 and classid=12 and infoid=1";
delete: sql1="delete from table where id=1"; sql2="delete from table where id=1 and classid=12 and infoid=1";