Question

我试图实现while循环我认为我的代码没问题...我的代码出了什么问题？在实现while循环时我的语法有什么问题？我是PL / SQL的新手

CREATE OR REPLACE
    PROCEDURE "WHILELOOPTEST" (LIMITLOOP IN NUMBER)
    AS
    BEGIN
    DECLARE MYCOUNTER NUMBER :=0;
        WHILE MYCOUNTER < LIMITLOOP  
    LOOP
     MYCOUNTER:= MYCOUNTER + 1;
    DBMS_OUTPUT.PUT_LINE('Hello World' || MYCOUNTER);
    END LOOP;
    END;

Answer 1

结构问题。存储过程没有DECLARE关键字。

CREATE OR REPLACE
PROCEDURE "WHILELOOPTEST"(
    LIMITLOOP IN NUMBER)
AS
  MYCOUNTER NUMBER :=0;
BEGIN
  WHILE MYCOUNTER < LIMITLOOP
  LOOP
    MYCOUNTER:= MYCOUNTER + 1;
    DBMS_OUTPUT.PUT_LINE('Hello World' || MYCOUNTER);
  END LOOP;
END;

Answer 2

您不需要在存储过程中使用DECLARE。试试这样，

CREATE OR REPLACE
PROCEDURE WHILELOOPTEST(
          LIMITLOOP IN NUMBER)
AS 
     MYCOUNTER NUMBER :=0;
BEGIN
     WHILE MYCOUNTER < LIMITLOOP  
     LOOP
          MYCOUNTER:= MYCOUNTER + 1;
          DBMS_OUTPUT.PUT_LINE('Hello World' || MYCOUNTER);
     END LOOP;
END;

PL / SQL实现while循环PL：00103

2 个答案: