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...
The manipulation ofthe date/time data typesis so critical to SQL Server's performance that it is highly optimised. indexes based ondate/time data typework very well, sort properly, and allow fast partitioning on a variety of criteria such as week, month, year-to-date and so on. If, for...
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 ...
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。
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. ...
SQL Servercomes 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 ...
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. ...
Datetime Data Types in SQL Server 2008 SQL Server 2008 supports three main datetime data types: datetime: This data type stores date and time values with a precision of up to 3.33 milliseconds. The valid range is January 1, 1753, to December 31, 9999. ...