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...
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...
定义SQL Server 中的日期。 SQL Server 2008 (10.0.x) 中引入了date数据类型。 date 说明 properties值 语法DATE 使用情况DECLARE @MyDate DATE CREATE TABLE Table1 (Column1 DATE) 默认的字符串文字格式 (用于下级客户端)yyyy-MM-dd 有关详细信息,请参阅下级客户端的后向兼容性部分。
FunctionSyntaxReturn valueReturn data typeDeterminism SYSDATETIMESYSDATETIME ( )Returns adatetime2(7)value containing the date and time of the computer on which the instance of SQL Server runs. The returned value doesn't include the time zone offset.datetime2(7)Nondeterministic ...
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()) ...
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. ...
Some down-level clients don't support thetime,date,datetime2, anddatetimeoffsetdata types. The following table shows the type mapping between an up-level instance of SQL Server and down-level clients. SQL Server data typeDefault string literal format passed to down-level clientDown-level ODBCDown...
While SQL Server supports several dozen data types, R has a limited number of scalar data types (numeric, integer, complex, logical, character, date/time, and raw). As a result, whenever you use data from SQL Server in R scripts, data might be implicitly converted to a compatible data ...
This article maps SQL Server data types to .NET data types (used by C#) for data structures and parameters onsp_execute_external_script. The following SQL and .NET data types are currently supported for input/output data sets and input/output parameters. ...
This article provides a summary of the different data types available in the SQL Server Database Engine.