标签：style blog http color 数据 cti
1、存储过程示例：为指定的职工在原工资的基础上长10%的工资
SQL> create or replace procedure raiseSalary(empid in number) as pSal emp.sal%type; begin select sal into pSal from emp where empno=empid; update emp set sal = sal*1.1 where empno=empid; dbms_output.put_line(‘员工号:‘ || empid || ‘涨工资前 ‘ || psal || ‘涨工资后‘ || psal*1.1); end; / Procedure created SQL> set serveroutput on SQL> exec raisesalary(7369);
员工号:7369涨工资前
800涨工资后880
PL/SQL procedure successfully completed
2、存储函数示例：查询某职工的年收入。
SQL> /** 查询某职工的总收入 */
create or replace function queryEmpSalary(empid in number) return number as pSal number; --定义变量保存员工的工资 pComm number; --定义变量保存员工的奖金 begin select sal,comm into psal,pcomm from emp where empno = empid; return psal*12+nvl(pcomm,0); end; / Function created SQL> declare v_sal number; begin v_sal:=queryEmpSalary(7934); dbms_output.put_line(‘salary is:‘|| v_sal); end; / salary is:15600 PL/SQL procedure successfully completed SQL> begin dbms_output.put_line(‘salary is:‘|| queryEmpSalary(7934)); end; / salary is:15600 PL/SQL procedure successfully completed
3、创建触发器示例1：限制非工作时间向数据库插入数据
SQL> create or replace trigger securityEmp before insert on emp declare begin if to_char(sysdate,‘day‘)in(‘星期四‘,‘星期六‘,‘星期日‘) or to_number(to_char(sysdate,‘hh24‘))not between 8 and 18 then raise_application_error(-20001,‘不能在非工作时间插入数据。‘); end if; end; / Trigger created
4、创建触发器示例2：确认数据（检查emp表中sal 的修改值不低于原值）
SQL> create or replace trigger checkSal before update of sal on emp for each row declare begin if :new.sal<:old.sal then raise_application_error(-20001,‘更新后的薪水比更新前小‘); end if; end; / Trigger created
存储过程和存储函数和触发器示例,布布扣,bubuko.com
标签：style blog http color 数据 cti
原文地址：http://www.cnblogs.com/smart9595/p/3818202.html
