Oracle存储过程可以有无参数存储过程和带参数存储过程。
一、无参程序过程语法
1 create or replace procedure NoParPro
2 as ;
3 begin
4 ;
5 exception //存储过程异常
6 ;
7 end;
8
二、带参存储过程实例
1 create or replace procedure queryempname(sfindno emp.empno%type) as
2 sName emp.ename%type;
3 sjob emp.job%type;
4 begin
5 ....
7 exception
....
14 end;
15
三、 带参数存储过程含赋值方式
1 create or replace procedure runbyparmeters (isal in emp.sal%type,
sname out varchar,sjob in out varchar)
2 as icount number;
3 begin
4 select count(*) into icount from emp where sal>isal and job=sjob;
5 if icount=1 then
6 ....
9 else
10 ....
12 end if;
13 exception
14 when too_many_rows then
15 DBMS_OUTPUT.PUT_LINE('返回值多于1行');
16 when others then
17 DBMS_OUTPUT.PUT_LINE('在RUNBYPARMETERS过程中出错！');
18 end;
19
四、在Oracle中对存储过程的调用
过程调用方式一
1 declare
2 realsal emp.sal%type;
3 realname varchar(40);
4 realjob varchar(40);
5 begin //存储过程调用开始
6 realsal:=1100;
7 realname:='';
8 realjob:='CLERK';
9 runbyparmeters(realsal,realname,realjob); －－必须按顺序
10 DBMS_OUTPUT.PUT_LINE(REALNAME||' '||REALJOB);
11 END; //过程调用结束
12
过程调用方式二
1 declare
2 realsal emp.sal%type;
3 realname varchar(40);
4 realjob varchar(40);
5 begin //过程调用开始
6 realsal:=1100;
7 realname:='';
8 realjob:='CLERK';
9 runbyparmeters(sname=>realname,isal=>realsal,sjob=>realjob); 值对应变量顺序可变
10 DBMS_OUTPUT.PUT_LINE(REALNAME||' '||REALJOB);
11 END; //过程调用结束
－指定－
