sql DECLARE @CurrentDate DATE = CONVERT(DATE, GETDATE()); DECLARE @FirstDayOfMonth DATE = DATEFROMPARTS(YEAR(@CurrentDate), MONTH(@CurrentDate), 1); -- 找到第一个周日 -- 使用 DATEPART(WEEKDAY, ...) 来确定 @FirstDayOfMonth 是星期几,然后减去相应的天数来到达第一个周日 -- WEEKDAY 返...
data database databases date datetime day day_hour day_minute day_second dayofmonth dayofweek dayofyear dec decimal default delayed delay_key_write delete desc describe distinct distinctrow double drop end else escape escaped enclosed enum explain exists fields file first float float4 float8 flush for...
IF DAY(CURRENT_TIMESTAMP) = 1BEGIN PRINT 'Today is the first day of the month.'; PRINT 'Starting a full database backup.'; BACKUP DATABASE TSQLFundamentals2008 TO DISK = 'C:\Temp\TSQLFundamentals2008_Full.BAK' WITH INIT; PRINT 'Finished full database backup.'; ENDELSEBEGIN PRINT 'T...
DateAdd(day, (@Thu -DatePart(weekday, @FONM))%7, @FONM) firstThuInNextMonth, ...
Y year of era (>=0) year 1996 x weekyear year 1996 w week of weekyear number 27 e day of week number 2 E day of week text Tuesday; Tue y year year 1996 D day of year number 189 M month of year month July; Jul; 07 d day of month number 10 a halfday of day text PM K...
select sysdate - interval '7' day from dual 当前时间减去7月的时间 select sysdate,sysdate - interval '7' month from dual 当前时间减去7年的时间 select sysdate,sysdate - interval '7' year from dual 时间间隔乘以一个数字 select sysdate,sysdate - 8 *interval '2' hour from dual ...
Orders WHERE MONTH(DATEADD(DAY,1,orderdate)) <> MONTH(orderdate) 方案二: 代码语言:javascript 复制 SELECT orderid, orderdate, custid, empid FROM Sales.Orders WHERE orderdate = DATEADD(month, DATEDIFF(month, '20051231', orderdate), '20051231'); 得到每月的最后一天的日期: 代码语言:javascript ...
dateadd(day,-1,getdate()) vs. getdate() - 1 Datediff format Hours, Minutes, Seconds and Milliseconds Datediff on same column DATEDIFF only returns integers DATEDIFF Week - First day of week query datepart(dw, date) Datetime - Out of range Datetime Value DateTime - Time round off to start...
从T-SQL中的周数中获取日期 - 在Microsoft SQL Server中,我有一个周编号 (from DATEPART(wk, datecol)) 但我想做的是将其重新转换为该周的日期范围。 例如, SELECT DATEPART(wk, GETDATE()) 收...
1.SELECT DATENAME(year,'20240225')--2024 2.SELECT DATENAME(month,'20240225')--February 3.SELECT DATENAME(day,'20240225')--25 datename返回的月份名称是依赖语言的。isdate函数isdate函数接受一个字符串作为输入,如果能把这个字符串转换为日期和时间数据类型的值,则返回1,如果不能则返回0。