Hello everyone,
i have a problem with the subtracting a DATETIME column with todays DATETIME.
One of the columns has the HireDate (Date of hiring a certain employee). I want to know how many Years they are employed.
事先感谢你!
我尝试:
SELECT LastName, HireDate, DATE( now ), DATE( now - HireDate)
FROM employees
或
SELECT LastName, HireDate, DATE( now ), DATE(DATE( now - HireDate)
FROM employees
I expected: The diffrence, so the time they were hired at the company I got: negative numbers...
http://www.un.org/Depts/DGACM/index_french.htm。 相反使用<条码> 时装机()。
SELECT
LastName
, HireDate
, TIMESTAMPDIFF(year, HireDate, now() )
FROM employees
See it working at sqlfiddle
类似问题:https://dba.stack Exchange.com/questions/112558/mysql-how-to-make-a-dated-in-years
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