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дһ¸öº¯Êý£¬oracle×Ô´øµÄemp±í¡£ÒªÇ󣺴«ÈëµÄ²ÎÊýÊÇÁ½¸ö¹¤×ʵÄÖµ£¬±ÈÈç´«Èë2000ºÍ3000.°Ñ2000¡¶= ¹¤×Ê¡¶=3000µÄempno,ename,salÊä³ö¡£¹¤×ÊСÓÚ2000µÄ£¬ÔòÊä³ö¡°ÄãµÄ¹¤×ÊÌ«µÍÁË£¡¡±£¬Èç´óÓÚ3000µÄ,ÔòÊä³ö¡°ÄãµÄ¹¤×ʲ»´í£¡¡±¡£Çëд³ö´úÂëÈÃСµÜѧϰµ÷ÊÔµ÷ÊÔ£¬Ð»Ð»£¡
create or replace procedure func_check_salary(v_min_sal number,v_max_sal number, cur_result out sys_refcursor)
is
 
begin
  open cur_result for 'select case when sal <:1 then  :2 when sal>:3 then :4 else :5 end out_result
    from emp ' using v_min_sal,'ÄãµÄ¹¤×ÊÌ«µÍÁË£¡',v_max_sal,'ÄãµÄ¹¤×ʲ»´í£¡', 'Õý³£¹¤×Êˮƽ£¡'
end;

SQL> CREATE OR REPLACE FUNCTION test_sal
  2    (pi_sal1      emp.sal%TYPE,
  3      pi_sal2      emp.sal%TYPE
  4    )
  5  RETURN SYS_REFCURSOR
  6  IS
  7    v_sqlstr        VARCHAR2(250);
  8    po_result      SYS_REFCURSOR;
  9
10  BEGIN
11    v_sqlstr := 'SELECT empno||''ºÅ¹ÍÔ±''||ename||CASE '||
12                'WHEN sal BETWEEN '||pi_sal1||' AND '||pi_sal2||' THEN ''¹¤
×ÊΪ£º''||sal '||
13  &


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