Oracle存储过程

查看存储过程

select * from user_source

准备数据

create table students(ID int, userName varchar(100), userPass varchar(100), userAge  int);

insert into students values(1,'jack','jjjaa',23);

insert into students values(2,'rose','jjjaa',21);

insert into students values(3,'lucy','jjjaa',22);

insert into students values(4,'Tony','jjjaa',24);

commit;

新建存储过程

create or replace procedure  SP_Update_Age ( uName in varchar, Age in int )

as

begin

    update students set UserAge = UserAge + Age where userName = uName;

    commit;

end SP_Update_Age;

调用存储过程

begin

    SP_UPDATE_AGE('jack',1);

end;

For循环

DECLARE x int;

BEGIN

    FOR i IN 1..10 LOOP

        IF MOD(i,2) = 0 THEN

            dbms_output.put_line( 'i: '||i||' is even ' );

        ELSE

            dbms_output.put_line('i: '|| i||' is odd' );

        END IF;

    END LOOP;

    COMMIT;

END;

while循环

create or replace Procedure Test2(i in out number) 

as 

begin 

    while i < 10 loop 

        begin 

            i:= i+1; 

        end; 

    end loop; 

end Test2; 

动态执行sql

declare v_sql varchar2(2000); 

begin 

    v_sql:='insert into test values (sysdate)'; 

    execute immediate v_sql; 

    commit; 

end; 

返回结果集

create or replace procedure sql_test(out_return out sys_refcursor) is

begin

    open out_return for 'select * from emp';

end;

commit;

declare

  cur1  SYS_REFCURSOR;

  i      emp%rowtype;

begin

sql_test(cur1);

  loop

    fetch cur1 into i;

    exit when cur1%notfound;

    dbms_output.put_line('EMPNO:' || i.EMPNO);

  end loop;

  close cur1;

end;

游标

declare

v_cur PKG_TYPES.REFCURSOR;

v_test clob;

vvv number(10);

begin

v_test := 'select 1 from dual';

open v_cur for v_test;

loop

fetch v_cur into vvv;

exit when v_cur%notfound;

dbms_output.put_line(vvv);

end loop;

end;