标签:定义 acl 命令 set 替代 verify fine rom bsp
select ename,&column2 from scott.emp; 输入sal; /替代标量;
select * from &tab;
select * from scott.emp where sal> &sal ;2000
select * from scott.emp where ename=upper(‘&salary‘); SCOTT;
define col=comm
define 查看变量
select ename,&col from scott.emp;
undefin col 取消定义的变量
&&sal=sal就相当于define命令,链接断掉就没了。
set verify off 关闭校验环境变量~
标签:定义 acl 命令 set 替代 verify fine rom bsp
原文地址:http://www.cnblogs.com/Juvenile/p/7625313.html