如何在 MySQL 中循环使用数组?

How to cycle with an array in MySQL?(如何在 MySQL 中循环使用数组?)

问题描述

我想用数组传递的值创建一个存储过程或一个普通查询.

I'd like to create a stored procedure or a normal query with values passed with an array.

示例:

CREATE PROCEDURE proc() 
BEGIN 
    DECLARE cont INTEGER; 
    DECLARE var ARRAY; 
    SET cont = 0;
    SET var = ("hi", "hello", "good", ...)

    WHILE cont < 12 DO 
        SELECT * FROM tablex
        WHERE name = var[cont];
        SET cont = cont + 1; 
    END WHILE; 
END;

显然这是行不通的，但我想知道如何实现这一点.

Obviously this is will not work, but I'd like to know how to achieve this.

推荐答案

尽量不用存储例程 -

SET @arr = 'hi,hello,good'; -- your array

SELECT COUNT(*) FROM tablex
  WHERE FIND_IN_SET (name, @arr); -- calculate count

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