teradata datediff

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 you might

Tags: 0.00 interval based on different str diff system article arithmetic operationsOne, SQL Server time Date function detailed 1. Current system date, time Select GETDATE () 2. DateAdd returns a new datetime value based on adding a period of time to the specified date Example: Add 2 days to the date Select DATEADD (day,2, ' 2004-10-15 ')--return: 2004-10-17 00:00:00.000 3. DateDiff returns the number of date and time boundaries across two specified d

Source post address click open link ACCESS statement: select * from data table where (DateDiff (d, Date Field, Date () 0) syntax DateDiff (interval, date1, date2 [, firstdayofweek] [, firstweekofyear]) the syntax of the DateDiff function contains the following parameters: operation, event, method, and attribute Source post address click open link ACCESS statement

1. The first day of this monthSelect dateadd (mm, datediff (mm, 0, getdate (), 0) 2. Last day of the monthSelect dateadd (MS,-3, dateadd (mm, datediff (M, 0, getdate () + 1, 0 )) 3. The first day of last monthSelect dateadd (M,-1, dateadd (mm, datediff (mm, 0, getdate (), 0 )) 4. Last day of last monthSelect dateadd (MS,-3, dateadd (mm,

SQL Server date calculation Generally, you need to obtain the current date and calculate some other dates. For example, 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 calcul

The first day (Datefirst) setting determines which day your system uses as the first day of the week. All of the following examples are established in Sunday as the first day of the week, with the first day set to 7. If your first day setting is not the same, you may need to adjust these examples so that it matches the different first-day settings. You can check the first day setting by using the @ @DATEFIRST function. Let's review the DateDiff and D

SQL Server Date Calculation 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 t

Label:Special instructions under: The following statistics this week data, Sunday is as the first day of next week, and not the last day of the week, so you put Sunday as the last day of the week, you need to getDate () on the basis of the reduction of one day, such as DATEADD (' Day ',-1, getDate ())This week: SELECT * FROM table where DATEDIFF (Week,c_calltime,getdate ()) =0--c_calltime as Date fieldThis month: SELECT * FROM table where

Tags: cas lda gid Blog Conversion method format conversion Update Targe varchar1. First day of the monthSELECT DATEADD (mm, DATEDIFF (Mm,0,getdate ()), 0) 2. Last day of the monthSELECT DateAdd (Ms,-3,dateadd (mm, DATEDIFF (M,0,getdate ()) +1, 0)) 3. The first day of the monthSelect DATEADD (m,-1, DateAdd (mm, DATEDIFF (Mm,0,getdate ()), 0)) 4. Last day of last m

Label: ------------------date is converted into a month and a day and seconds--------------- Select ' R ' +convert (varchar), GETDATE (), 112)+right (CAST (Power (10,2) as varchar) +datepart (hour, GETDATE ()), 2)+right (CAST (Power (10,2) as varchar) +datepart (minute, GETDATE ()), 2)+right (CAST (Power (10,2) as varchar) +datepart (SS, GETDATE ()), 2)+right (CAST (Power (10,3) as varchar) +datepart (MS, GETDATE ()), 3) SQL Server time Date function detailed, SQL Server, time

Label:Select GETDATE () as ' current date ',Datename (Year,getdate ()) as ' year ',Datename (Month,getdate ()) as ' month ',Datename (Day,getdate ()) as ' Day ',Datename (Dw,getdate ()) as ' Week ',Datename (Week,getdate ()) as ' Week number ',Datename (Hour,getdate ()) as ' when ',Datename (Minute,getdate ()) as ' min ',Datename (Second,getdate ()) as ' s 'Results:2009-08-13 23:07:15.403 2009 08 13 Week 433 23 7 152007-11-13SQL server2000 Time Operations1. Show the first day of the monthSELECT