SQL Server built into some of the functions of the date of the operation, lists some common here.
1.getdate () function to get the current system date and time:
select getdate();
2.dateadd () function on the basis of the period of time specified plus date, datetime returns the new value:
select dateadd(day, 2, '2019-07-06'); -- 2019-07-08 00:00:00.000
3.datediff () function returns the number of date and time across the border two specified dates:
select datediff(day, '2019-07-01', '2019-07-06'); -- 5
4.datepart () function returns the specified date represents an integer portion of the date specified:
SELECT the datepart ( month The , ' 2019-07-06 ' ); - Returns 7
5.datename () function returns the representative of the specified portion of the date specified date string:
SELECT DATENAME (WEEKDAY, ' 2019-07-06 ' ); - Saturday
6.day () function returns the integer portion of the date specified date:
select day('2019-07-06'); -- 6
7.month () function returns the month part of a specified date
select month('2019-07-06'); -- 7
8.year () function returns the date portion of integer parts:
select year('2019-07-06'); -- 2019
9.cast () function date / string into a string / date:
cast(expression as data_type)
10.convert () function to convert the string / date is the date / string:
convert(data_type[(length)], expression [, style])
"If the people no matter what, what regarded himself as an exception, perhaps there would be so much disappointed."