这可以通过使用 DATEADD 和DAY 函数来实现。 3. 执行SQL查询 下面是一个示例SQL查询语句,用于获取当月的第一天: sql SELECT DATEADD(day, 1-DAY(GETDATE()), CAST(GETDATE() AS DATE)) AS FirstDayOfMonth; 这个查询的解释如下: GETDATE() 返回当前的日期和时间。 CAST(GETDATE() AS DATE) 将日期和...
declare@whichWeekDayint--周几(值域:[1,7],表示周一到周天)set@whichWeekDay=1declare@firstDayOfMonthdatetimeset@firstDayOfMonth=DATEADD(DAY,1, EOMONTH(@dateNow,-1)) printCAST(@firstDayOfMonth+(7+@whichWeekDay+1-datepart(weekday,@firstDayOfMonth))%7ASDATE) 输出: 2021-07-05 19、上个月...
Select*FromTableWhere(CreateDate<=DATEADD(YEAR,-1,GETDATE()))Select*FromTableWhere(CreateDate<=DATEADD(MONTH,-1,GETDATE()))Select*FromTableWhere(CreateDate<=DATEADD(DAY,-1,GETDATE()))
DD day of month (01-31)D day of the week, Sunday(1) to Saturday(7)ID ISO day of the week, Monday(1) to Sunday(7)W week of month (1-5) (The first week starts on the first day of the month.)WW week number of year (1-53) (The first week starts on the first...
*/*程序清单 如下:*/USE adventureworks SELECT DATEDIFF(day,hiredate,getdate()AS diffdays FROM humanresources.employee/* 从 GETDAT函数返回的日期中提取 月份名。*/* 程序清单如下:*/SELECT 24、 DATENAME(month,getdate()ASMonth Name/*此示例输出AdventureWorks数据库中订单的时间范围的列表。此时间 范围为...
1,最简单的利用其自身函数YEAR()函数返回表示指定日期中的年份的整数。 MONTH()函数返回表示指定日期中的月份的整数。 DAY()函数返回表示指定日期中的日期的整数。 语法YEAR( date ) MONTH ( date ) DAY ( date )YEAR()/MONTH()/DAY()的参数Date可以为datetime或smalldatetime 类型的表达式。 例如 ...
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,foreign,from,for,full,function,global,...
Get First Day of Month in a DateTimePicker Get first line in RichTextBox Get Folder Size Get latitude and Longitude in Google maps selection in VB.net Get Only MAC Address with VB.NET? Get pixel color at screen position? Get process name and add it to a process using getobject method...
自SQL Server2005开始引入了一个T-SQL独有的表运算符-PIVOT,它可以对某个源表或表表达式进行操作、透视数据,再返回一个结果表。 PIVOT运算符同样涉及前面介绍的三个逻辑处理阶段(分组、扩展和聚合)以及同样的透视转换元素,但使用的是不同的、SQL Server原生的语法。
day date formats and can see the flexibility that SQL Server has handling dates. Other ways to take advantage of the Year Month Day short format, might include concatenating a date to a file name or naming a monthly billing batch. I have also seen the use of Char(6) YYYYMM to denote ...