DATEADD() 函数在日期中添加或减去指定的时间间隔。 语法 DATEADD(datepart,number,date) For example if you want to add 2 days, then this will be DAY.This unit of measure must be one of the values listed in Supported Date and Time Parts.. value Add 3 hours to a date SELECT DATEADD(HOUR,-3,@Date) Subtract 90 minutes from date SELECT DATEADD(MINUTE,-90,@Date) Check out the chart to get a list of all options; Date Formats and Units of Time. For example, you could take ‘2020-10-03’, add 10 years, then return the (increased) year component. DATEADD(dd, , 0) -- Add that number of days back to 0 The same concept works for many different time calculations. You can also combine DATEADD() with other functions to format the date as required. The DATEADD() function returns the data type that is the same as the data type of the date argument. 定义和用法. Enter a date string. For instance, you can sub out Days for Week, month or Year: The date is the date to which the interval to be added. SELECT 'YEAR', DATEADD(year, 1, @DateAdd) Next, we asked the SQL Dateadd function to add 1 month to the given date. In SQL Server (Transact-SQL), the DATEADD function returns a date after which a certain time/date interval has been added. SELECT 'MONTH', DATEADD(month, 1, @DateAdd) Negative Integer in SQL DATEADD The system assumes your entry to be in the format specified in … SQL Anywhere 11.0.1 (Français) » SQL Anywhere Server - SQL Reference » Using SQL » SQL functions » SQL functions (A-D) DATEADD function [Date and time] Returns the date produced by adding multiple date parts to a date. number. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

In SQL Server, you can use the DATEADD() function to add a specified time period to a given date. Use this function to add a specified number of days, months, and/or years to a date. DateAdd. The number is an integer constant or an expression that evaluates to an integer which function add to the datepart of date.. date. Description.

DATEADD (Transact-SQL) DATEADD (Transact-SQL) 07/29/2017; 6 minutes de lecture; Dans cet article. SELECT DATEADD (day,-1, '2018-01-01'); In this example, we subtracted one day from a date of January 1st, 2018 that returns the following result: 2017-12-31 00:00:00.000 In this tutorial, you have learned how to use the SQL DATEADD() function to add an interval to a date. ... How to write a variable within SQL using Dateadd and DateDiff for finding the last TWO days of the previous month. This SQL Server tutorial explains how to use the DATEADD function in SQL Server (Transact-SQL) with syntax and examples. SQL Server DATEADD() 函数.


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