Oracle12有了with function/procedure, 那么怎么和原来的with view共存呢？
想查oracle文档中的语法，找了半天没找到，只有摸石头过河，发现这能这样才能成功：
With
FUNCTION with_function(p_id IN NUMBER) RETURN NUMBER IS
BEGIN
RETURN p_id;
END;
x1 as (select sysdate f1 from dual),
x2 as (select sysdate f2 from dual)
SELECT with_function(100), f1,f2
FROM dual,x1,x2;
/
WITH_FUNCTION(100) F1 F2
------------------ --------- ---------
100 10-DEC-13 10-DEC-13
With
FUNCTION with_function(p_id IN NUMBER) RETURN NUMBER IS
BEGIN
RETURN p_id;
END;
x1 as (select sysdate f1 from dual),
x2 as (select sysdate f2 from dual)
SELECT with_function(100), f1,f2
FROM dual,x1,x2
/
WITH_FUNCTION(100) F1 F2
------------------ --------- ---------
100 10-DEC-13 10-DEC-13
这个只能当做PL/SQL代码，只能用/开头的单独作为语句结束，而不是分号
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