将列更新为NULL将返回空列

Question

When I run this query 当我运行此查询时

UPDATE tblPlayer 
SET Salary = NULL, 
    Status = "1" 
WHERE PlayerId=123

Instead of updating salary to NULL the it updates to an empty value 而不是将薪水更新为NULL ，而是更新为空值

How do I get NULL instead of empty value? 如何获取NULL而不是空值？

Answer 1

Your code is working fine with me 您的代码对我来说很好

UPDATE tblPlayer 
SET    Salary = NULL, 
       Status = '1' 
WHERE  PlayerId = 123

I bet your SALARY has default value '' 我敢打赌您的SALARY具有默认值''

To alter the column, try this DDL 要更改列，请尝试此DDL

ALTER TABLE tblPlayer MODIFY Salary VARCHAR(15) NULL DEFAULT NULL;