我可以用子句中使用，同時打開遊標

Question

我能使用條款，同時使用光標

OPEN CURSOR_NAME FOR 
WITH view1 as (Select v_name from tablename), 
view2 as (Select p_name from tablename2) 
Select * from view1, view2; 

Answer 1

是的，它可以使用with子句中光標。檢查下面的例子。

DECLARE 
    l_cur sys_refcursor; 
    l_val VARCHAR2 (1000); 
BEGIN 
    DBMS_OUTPUT.ENABLE; 

    OPEN l_cur FOR 
     WITH tab AS 
      (SELECT 'hello' 
       FROM DUAL) 
     SELECT * 
     FROM tab; 

    FETCH l_cur 
    INTO l_val; 

    CLOSE l_cur; 

    DBMS_OUTPUT.put_line (l_val); 
END; 

輸出：hello