SQL查询月、天、周、年（MySql的实例对比）

SQL Server实现

日期部分	缩写
year	yy, yyyy
quarter	qq, q
month	mm, m
dayofyear	dy, y
day	dd, d
week	wk, ww
weekday	dw
Hour	hh
minute	mi, n
second	ss, s
millisecond	ms

1 2select datename(weekday,getdate()) 4 5select * from users where year(time)=year(getdate()) 7 8select * from users where month(time)=month(getdate()) and year(time)=year(getdate()) 10 11select * from users where day(time)=day(getdate()) and month(time)=month(getdate()) and year(time)=year(getdate()) 13 14 15SELECT DATEADD(wk, DATEDIFF(wk,0,getdate()), 0) 17 18select dateadd(wk,datediff(wk,0,getdate()),6) 20 21select * from users where DATEPART(wk, time) = DATEPART(wk, GETDATE()) and DATEPART(yy, time) = DATEPART(yy, GETDATE()) 23 24 25select * from users where (DATEDIFF(dd, time, GETDATE()) = 0) 27 28select * from users where (DATEDIFF(mm, time, GETDATE()) = 0) 30 31select * from users where (DATEDIFF(yy, time, GETDATE()) = 0)
在MySql中实现：

1——
2 本年：
3 select * from loanInfo where year(date)=year(getdate())
4
5 2——
6 本月：
7 select * from loanInfo where year(date)=year(getDate()) And month(date)=month(getdate())
8
9 3——
10 本日：
11 select * from loanInfo where year(date)=year(getDate()) And month(date)=month(getdate()) and Day(date)=Day(getDate())
12
13
14
15SELECT * FROM table WHERE (MONTH(字段) = MONTH(GETDATE()))