teradata datediff

Server usually, you need to get the current date and calculate some other date, for example, your program may need to judge the first or last day of one months. Most of you probably know how to split dates (year, month, day, etc.), and then just use the split year, month, day, etc in several functions to calculate the date you need! In this article, I'll show you how to use the DateAdd and DATEDIFF functions to calculate some of the different dates yo

server™2000 uses the Kuwaiti algorithm.Important by default, SQL Server interprets two-digit years based on the cutoff year 2049. That is, the two-digit year 49 is interpreted as 2049, and the two-digit year 50 is interpreted as 1950. Many client applications, such as those based on OLE automation objects, use 2030 as the cutoff year. SQL Server provides a configuration option ("Two-digit cutoff year") to change the cutoff year used by SQL Server and to make the dates consistent. However, the s

year.When converting from smalldatetime to character data, styles containing seconds or milliseconds will display zeros at these locations. When converting from a datetime or smalldatetime value, you can truncate the unwanted date part by using the appropriate char or varchar data type length.PS: Combining the DateDiff () function to compare time is particularly useful.----------------------------------------------------------------------------------

Mssqlserver common date functions your program may need to determine the first or last day of a month. Most of you probably know how to divide a date (year, month, day, and so on ), then, just use the split year, month, and day to calculate the date you need in several functions! In this article, I will show you how to use the DATEADD and DATEDIFF functions to calculate different dates that may be used in your program. Before using the example in this

Select * From TBL where datepart (wk, date_field) = datepart (wk, getdate () and datepart (yyyy, date_field) = datepart (yyyy, getdate () -- weekSelect * From TBL where datepart (M, date_field) = datepart (M, getdate () and datepart (yyyy, date_field) = datepart (yyyy, getdate () -- monthSelect * From TBL where datepart (Q, date_field) = datepart (Q, getdate () and datepart (yyyy, date_field) = datepart (yyyy, getdate () -- quarterSelect * From TBL where datepart (yyyy, date_field) = datepart (y

MSSQL Server Common date functions Your program may need to determine the first or last day of one months. Most of you probably know how to split dates (year, month, day, etc.), and then just use the split year, month, day, etc in several functions to calculate the date you need! In this article, I'll show you how to use the DateAdd and DATEDIFF functions to calculate some of the different dates you might want to use in your program.Before using the

Tags: access mil csdn second part details datetime log ArchSQL Query day, week, month record--Day of enquiry:[SQL] View plaincopyprint?SELECT * FROM info where DateDiff (dd,datetime,getdate ()) =0--Query within 24 hours:[SQL] View plaincopyprint?SELECT * FROM info where DateDiff (hh,datetime,getdate ()) --info is the table name, DateTime is the field value in the database--Day of enquiry:[SQL] View plaincop

You can understand that by using simple DATEDIFF and DATEADD functions, you can find many different dates that may be meaningful. All the examples so far only calculate the number of time intervals between the current time and "", and then add it The date is calculated based on the time interval of "1900-01-01. Assume that you modify the number of time intervals or use different time intervals to call The DATEADD function, or subtract the time interv

/** Time difference between two hours of leave*/Create PROCEDURE [dbo]. [Os_vocation_hour]@starttime varchar (20),--Start time@endtime varchar (20)--End time Asif (IsDate (@starttime) =0 or IsDate (@endtime) =0)--Non-date formatBeginSelect 0Endelse--Normal date formatBeginDECLARE @day_jg varchar, @day_num float, @hour_num float, @hour_temps float, @hour_tempe float--Declare three variablesDECLARE @s1 datetime, @e1 datetime, @num_old float Set @hour_temps =datepart (Hour, @starttime)--get Start h

Usually, you need to get the current date and calculate some other date, for example, your program may need to determine the first or last day of one months. Most of you probably know how to divide the date (year, month, day, etc.), and then just use the divided year, month, day, etc. in a few functions to calculate the date you need! In this article, I'll show you how to use the DateAdd and DATEDIFF functions to figure out some of the different dates