在源数据库创建表t alter system flush shared_pool;清空shared_pool的数据 create or replace procedure proc1 创建proc1 as begin for i in 1.100000 loop execute immediate 'insert into t values('|i|')';...
5800&xff0c;1&xff09;xff1b;执行mysql>select ename&xff0c;sal&xff0c;ifnull&xff08;ename&xff0c;‘空’&xff09;as ename_null from emp&xff1b;ename sal ename_nullzhangsan 2000.00 zhangsanlisi 3000....