In SQL Server, the CURRENT_TIMESTAMP() function returns the current system timestamp of the server on which the SQL Server database instance is installed. It is returned as a datetime value without the time zone
SqlFunctions.CurrentTimestamp 方法 參考 定義 命名空間: System.Data.Entity.SqlServer 組件: EntityFramework.SqlServer.dll 傳回目前的日期和時間。 C# [System.Data.Entity.DbFunction("SqlServer","CURRENT_TIMESTAMP")]publicstaticNullable<DateTime>CurrentTimestamp(); ...
The CURRENT_DATE() function returns the current date. Note:The date is returned as "YYYY-MM-DD" (string) or as YYYYMMDD (numeric). Note:This function equals theCURDATE()function. Syntax CURRENT_DATE() Technical Details Works in:From MySQL 4.0 ...
如需大致了解 Transact-SQL 日期和时间数据类型及函数,请参阅日期和时间数据类型及函数。 Transact-SQL 语法约定 语法 syntaxsql CURRENT_TIMESTAMP 参数 此函数没有参数。 返回类型 datetime 备注 Transact-SQL 语句可以在能引用 datetime 表达式的所有位置引用CURRENT_TIMESTAMP。
Transact-SQL 语句在其可以引用 datetime 表达式的任何环境下均可引用 CURRENT_TIMESTAMP。 CURRENT_TIMESTAMP 是非确定性函数。 引用该列的视图和表达式无法进行索引。 示例 下例使用六个返回当前日期和时间的 SQL Server 系统函数来返回日期和/或时间。 这些值是连续返回的,因此,它们的秒小数部分可能有所不同。
SQL Server date and time functions FunctionDescription GETDATE() Returns the current date and time DATEPART() Returns part of the date DATEDIFF() Calculates the difference between two dates SYSUTCDATETIME Returns the system date and time in UTC CONVERT() Converts date and time to different forma...
The CURRENT_GMTTIMESTAMP datetime function returns the current date and time in the GMT time zone. Syntax CURRENT_GMTTIMESTAMP returns a GMTTIMESTAMP value representing the current date and time in the GMT time zone. As with all SQL functions that take no parameters, no parentheses are require...
When selected, enables Date/Time Extended data type support for linking to or importing from external databases that use an equivalent data type, such as datetime2 in SQL Server. Access warns you that setting this option makes a permanent change to the database file format that...
CURRENT_ROW_TIMESTAMP is an Amazon Kinesis Data Analytics extension to the SQL:2008 specification. This function returns the current timestamp as defined by the environment on which the Amazon Kinesis Data Analytics application is running. CURRENT_ROW_TIMESTAMP is always returned as UTC, not the...
In some data science projects, you’ll need only a specific part of your datetime value… Do you need themonthsonly? Thedays? Theseconds? Not a problem. Just use thedate_partSQL function. This is its logic: SELECT date_part('[which_part_you_need]',(SELECT current_timestamp)); ...