Can I have a variable type as a input parameter for a stored procedure in MySQL?

Question

例如，参数可以是INT类型， FLOAT或DATETIME等。

Answer 1

You can add something the param as a varchar and then convert it to appropriate type using a CASE structure and then use it in your procedure,of sort:

---

BEGIN
    DECLARE v VARCHAR DEFAULT "NULL";

    CASE v
      WHEN 'INT' THEN CONVERT(v AS INT);
      WHEN 'FLOAT' THEN CONVERT(v AS FLOAT);
      ELSE
        BEGIN
        END;
    END CASE;
  END;

Answer 2

您的意思是像@Qty int这样的输入参数吗？

Answer 3

每次您必须手动编辑存储功能以更改数据类型时。