PL/SQL编程—控制语句

SQL> create or replace procedure sp_pro5(id_in varchar2) is
  2  v_sal mytest.salary%type;
  3  begin
  4  select salary into v_sal from mytest where id=id_in;
  5  if v_sal<130 then
  6  update mytest set salary=1.1*v_sal where id=id_in;
  7  end if;
  8  end;
  9  /
Procedure created
SQL> exec sp_pro5(4);
PL/SQL procedure successfully completed
SQL> select * from mytest;
ID    NAME                 PASSWD                                                                                         SALARY
----- -------------------- -------------------- --------------------------------------------------------------------------------
1     123                  123                                                                                               150
2     gaodingle!!!!        123                                                                                               150
3     gagaga               123                                                                                               150
4     125555               passwd                                                                                             55

SQL> create or replace procedure sp_pro6(id_in varchar2) is
  2  v_bonus number(6,2);
  3  begin
  4  select bonus into v_bonus from mytest where id=id_in;
  5  if v_bonus=0 then
  6  update mytest set bonus=100 where id=id_in;
  7  else
  8  update mytest set bonus=v_bonus+300 where id=id_in;
  9  end if;
 10  end;
 11  /
Procedure created
SQL> select * from mytest;
ID    NAME                 PASSWD                 SALARY    BONUS
----- -------------------- -------------------- -------- --------
1     123                  123                    120.00     0.00
2     gaodingle!!!!        123                    120.00     0.00
3     gagaga               123                    120.00   100.00
4     125555               passwd                 120.00   100.00
SQL> exec sp_pro6(1);
PL/SQL procedure successfully completed
SQL> select * from mytest;
ID    NAME                 PASSWD                 SALARY    BONUS
----- -------------------- -------------------- -------- --------
1     123                  123                    120.00   100.00
2     gaodingle!!!!        123                    120.00     0.00
3     gagaga               123                    120.00   100.00
4     125555               passwd                 120.00   100.00

SQL> create or replace procedure sp_pro7 is
  2  i number:=0;
  3  begin
  4  loop
  5  insert into users values(i,'test'||i);
  6  exit when i=3;
  7  i:=i+1;
  8  end loop;
  9  end;
 10  /
Procedure created