一.思路:首先输出需要变量接收,需要声明变量,于是考虑什么变量类型比较合适,在这我用的是table类型,最后,查询出来,循环输出即可. 二.具体实现 -- 编写一个PL/SQL块,输出所有员工的员工姓名.员工号.工资和部门号 declare -- 声明table类型的对象,属性 员工姓名:ename,员工号:empno,工资:sal ,部门:deptno type emp_table_type is table of emp%rowtype index by binary_integer; --
EMP表是Oracle测试账户SCOTT中的一张雇员表,首先,我们来看看emp表的数据 SQL> select * from emp; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO ----- ---------- --------- ---------- --------- ---------- ---------- ---------- SMITH CLERK ALLEN SALESMAN WARD SALESMAN JONES MANAGER M
The Employee table holds all employees. Every employee has an Id, a salary, and there is also a column for the department Id. +----+-------+--------+--------------+ | Id | Name | Salary | DepartmentId | +----+-------+--------+--------------+ | 1 | Jo
创建表:Create table If Not Exists Employee (Id int, Name varchar(255), Salary int, DepartmentId int);Create table If Not Exists Department (Id int, Name varchar(255));Truncate table Employee;insert into Employee (Id, Name, Salary,DepartmentId) values ('
#!/bin/bash IFS=: for folder in $PATH #PATH变量分隔符为: do echo $folder echo ------------------ for file in $folder/* # /*表示需要遍历$folder内所有的目录 do if [ -x $file ] then echo $file fi done done IFS用法:指定分隔符,默认为空格,制表符,“\n” IFS=: 表示分隔符只有: ,若要指定多个分隔符,使用IFS='\n