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MySQL Date 函数. DATE_FORMAT () 函数用于以不同的格式显示日期/时间数据。 语法. DATE_FORMAT(date, format) date 参数是合法的日期。 format 规定日期/时间的输出格式。 可以使用的格式有: 下面的脚本使用 DATE_FORMAT () 函数来显示不同的格式。 我们使用 NOW () 来获得当前的日期/时间: DATE_FORMAT (NOW(),'%b %d %Y %h:%i %p') . DATE_FORMAT (NOW(),'%m-%d-%Y') . DATE_FORMAT (NOW(),'%d %b %y') . DATE_FORMAT (NOW(),'%d %b %Y %T:%f') 结果类似:
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2014年9月5日 · How to Format Date/Time. -- Microsoft SQL Server T-SQL date and datetime formats -- Date time formats - mssql datetime -- MSSQL getdate returns current system date and time in standard internal format SELECT convert(varchar, getdate(), 100) - mon dd yyyy hh:mmAM (or PM) - Oct 2 2008 11:01AM .
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SQL Server comes with the following data types for storing a date or a date/time value in the database: DATE - format YYYY-MM-DD. DATETIME - format: YYYY-MM-DD HH:MI:SS. SMALLDATETIME - format: YYYY-MM-DD HH:MI:SS. TIMESTAMP - format: a unique number. Note: The date types are chosen for a column when you create a new table in your database!
2012年5月1日 · SQL Date Format with the FORMAT function. Use the FORMAT function to format the date and time data types from a date column (date, datetime, datetime2, smalldatetime, datetimeoffset, etc. data type) in a table or a variable such as GETDATE () To get DD/MM/YYYY use SELECT FORMAT (getdate (), 'dd/MM/yyyy ') as date.
- In this article
- Date and time data types
- Date and time functions
The sections in this article cover all Transact-SQL date and time data types and functions.
Date and time data types
Functions that return system date and time values
Functions that return date and time parts
Functions that return date and time values from their parts
Functions that return date and time difference values
The Transact-SQL date and time data types are listed in the following table:
data type is not a date or time data type.
The following tables list the Transact-SQL date and time functions. See
for more information about determinism.
Transact-SQL derives all system date and time values from the operating system of the computer on which the instance of SQL Server runs.
Since SQL Server 2008 (10.0.x), the Database Engine derives the date and time values through use of the GetSystemTimeAsFileTime () Windows API. The accuracy depends on the computer hardware and version of Windows on which the instance of SQL Server running. This API has a precision fixed at 100 nanoseconds. Use the GetSystemTimeAdjustment () Windows API to determine the accuracy.
2019年4月3日 · Let us explore various date formats using SQL convert date functions. First, we declare a variable to hold current DateTime using the SQL GETDATE() function with the following query.
2024年8月9日 · Transact-SQL 从运行 SQL Server 实例的计算机的操作系统派生所有系统日期和时间值。 精度较高的系统日期和时间函数 自 SQL Server 2008 (10.0.x) 起,数据库引擎使用 GetSystemTimeAsFileTime() Windows API 派生日期和时间值。