date是一个可以解析为 time、date、smalldatetime、datetime、datetime2 或 datetimeoffset 值的表达式。date 参数可以是表达式、列表达式、用户定义变量或字符串文字。 获取月份:MONTH(date),返回日期对应的月份,返回int类型。参数同上。 获取天数:DAY(date),返回日期对应的天数,返回int类型。参数同上 获取任意时间部分,DA...
-- Creating a new table named "test" in the current schema CREATE TABLE test ( -- Defining a column named "id" of the DECIMAL data type, designated as the PRIMARY KEY id DECIMAL PRIMARY KEY, -- Defining a column named "col1" of the DATE data type, capable of storing year, month,...
CURRENT_TIMESTAMPCURRENT_TIMESTAMP返回包含计算机的日期和时间的 datetime 值,SQL Server 的实例在该计算机上运行。 返回值不包括时区偏移量。datetime不具有确定性 GETDATEGETDATE ( )返回包含计算机的日期和时间的 datetime 值,SQL Server 的实例在该计算机上运行。 返回值不包括时区偏移量。datetime不具有确定性 ...
MS SQL Server Data Types String Data Types Data typeDescriptionMax char lengthStorage char(n)Fixed-length non-Unicode character data (n must be between 1 and 8000)8,000n bytes (uses one byte for each character) varchar(n)Variable-length non-Unicode character data (n must be between 1 and...
Functions that return system date and time values Transact-SQL derives all system date and time values from the operating system of the computer on which the instance of SQL Server runs. Higher-precision system date and time functions Since SQL Server 2008 (10.0.x), the Database Engine ...
Functions that return system date and time values Transact-SQL derives all system date and time values from the operating system of the computer on which the instance of SQL Server runs. Higher-precision system date and time functions Since SQL Server 2008 (10.0.x), the Database Engine derives...
SELECTCAST(YEAR(GETDATE())AS VARCHAR) --hour (00-23) SELECTDATEPART(hour,GETDATE()) --Hour (01-12) SELECTLEFT(RIGHT(CONVERT(CHAR(19),GETDATE(),100),7),2) --minute SELECTDATEPART(minute,GETDATE()) --second SELECTDATEPART(second,GETDATE()) ...
现在,您已经了解了SQL Server中DateTime数据类型的精度,可以根据自己的需求选择合适的日期和时间类型来存储时间信息。 DateTime Table1Table21 to many 参考资料: [Microsoft Docs: Date and Time Data Types and Functions](
DATETIME2can store date fromJanuary 1, 0001toDecember 31, 9999with time DATEcan only store date fromJanuary 1, 0001toDecember 31, 9999 TIMEcan store only time Note:There are many other data types supported by SQL Server. To read more, visitSQL Server documentation. ...
dateDateOnly.NET 6 and later versions timeTimeOnly.NET 6 and later versions numericdecimal decimaldecimal moneydecimal smallmoneydecimal smalldatetimeDateTime datetimeDateTime datetime2DateTime How to call the .NET runtime in SQL Server Language Extensions ...