SQL语句不起作用 - “操作数类型冲突：日期与int不兼容”

Question

I have a table which i am trying to return the Time and Productno columns for a specific date. When i try the following SQL command it returns the error: "Operand type clash: date is incompatible with int'. I have research on forums and this is the way most people have been achieving a similar thing which is getting me puzzled. The data types for the following fields are as follows: Date: date. Time: time(7). Productno: int.

SELECT        Date, Time, Productno
FROM            Products
WHERE        (Date = 07 / 09 / 2008)

Please could i be advised where i am going wrong?

Thanks.

Answer 1

Your date format is incorrect, it needs to be in quotes and rearranged slightly.

WHERE        (Date = 'Year-Month-day')

or rather

WHERE        (Date = '2008-09-07')

Answer 2

(Date = 07 / 09 / 2008)

Here you dividing (int)7 by (int)9 and then by (int)2008. So 07 / 09 / 2008 is an integer result of some calculations. In order to pass the date instead, you should put it into quotes.

Answer 3

Use this

SELECT Date, Time, Production
FROM Products
WHERE Date="2008-09-07"

Date must be in yyyy-mm-dd format