Issue in writing a SQL statement
I have a MySQL table called Hotel
. in that i have the following fields ID
,hotelName
,Address
,YearOfEstablishment
.
The YearOfEstablishment
is type Date
and it'll store a date as 2010-12-26
. What i need to do is to find the difference between the dates, and the SQL for that is as follows;
S开发者_StackOverflow社区ELECT DATEDIFF('2011-08-08','2010-07-26');
The answer for the above query will be given in days, like for example the difference between the 2 dates might be 120
days, I need to show this in Years
. Like to divide the value 120
by 365
and give the number of years. How do i write the SQL statement for this?
2.) Now i need to write another SQL, that would show all the Hotel
table columns and the Year difference values
(that is explained above). How do i write the SQL for this?
(I am using MySQL)
SELECT DATEDIFF('2011-08-08','2010-07-26') / 365;
SELECT ID,hotelName,Address,YearOfEstablishment, DATEDIFF(YearOfEstablishment,'2010-07-26') / 365 AS years FROM Hotel;
However, be sure to know that an average year has 365.2425 days.
And if your reference datetime is now, simply use NOW()
: SELECT DATEDIFF('2011-08-08',NOW()) / 365;
.
You should be able to use a query like this:
SELECT ID, hotelName, Address, YearOfEstablishment, (DATEDIFF(YearOfEstablishment, '2010-07-26')/365) AS differenceInYears
Try this
SELECT MOD (DATEDIFF('2011-08-08','2010-07-26'), 365) ;
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