For more information, see Using Set Functions. String functions Return string values from other objects or from the server. For more information, see Using String Functions. Tuple functions Return a reference to
Applies to:SQL Server Analysis Services When you use Data Mining Extensions (DMX) to query objects in Microsoft SQL Server Analysis Services, you can use functions to return more information than just the values in the columns in the data mining model or input dataset. For example, you can ...
Functions (SQL Server Compact Edition) GETDATE (SQL Server Compact Edition) GROUP BY Clause (SQL Server Compact Edition) HAVING Clause (SQL Server Compact Edition) Hints (SQL Server Compact Edition) IDENTITY Property (SQL Server Compact Edition) IN (SQL Server Compact Edition) Information Schema ...
SqlFunctions 方法 Acos Ascii Asin Atan Atan2 Char CharIndex Checksum ChecksumAggregate Cos Cot CurrentTimestamp CurrentUser DataLength DateAdd DateDiff DateName DatePart Degrees Difference Exp GetDate GetUtcDate HostName IsDate IsNumeric Log Log10 ...
Using this option prevents the function from being published as part of SQL Server replication. This option can't be specified for CLR functions. SCHEMABINDING Specifies that the function is bound to the database objects that it references. When SCHEMABINDING is specified, the base objects can't...
You can create a database object inside an instance of SQL Server that is programmed in an assembly created in the .NET Framework common language runtime (CLR). Database objects that can use the rich programming model provided by the common language runtime include aggregate functions, functions...
所有聚合函数都是确定性的,这意味着对相同的输入值进行运算时,它们始终返回相同的值。 有关详细信息,请参阅Deterministic and Nondeterministic Functions。 分析函数 解析函数基于一组行计算聚合值。 不过,与聚合函数不同,分析函数可能针对每个组返回多行。 可以使用分析函数来计算移动平均线、运行总计、百分比或一个组...
SqlFunctions.DateDiff 方法参考 反馈 定义命名空间: System.Data.Objects.SqlClient 程序集: System.Data.Entity.dll 返回两个指定日期之间所跨的日期和时间边界的数目。重载展开表 DateDiff(String, String, String) 返回所指定开始日期和结束日期之间的指定 datepart 边界的计数。 DateDiff(String, String, ...
Microsoft SQL Server 2012 New Functions Article 01/17/2024 In this article See Also Other Languages EOMONTH We had a problem whenever we wanted to identify the end date of a month. There was no built in function. But now that problem is solved in SQL Server 2012. The function EOMONTH r...
User-Defined Functions (在 Transact-SQL 中实现且返回单个数据值的 UDF) 称为 T-SQL 标量 User-Defined Functions (UDF) 。 标量UDF 内联功能于 2019 Microsoft SQL Server 中引入。 此功能可以提高调用 T-SQL 标量 UDF 的查询的性能,其中 UDF 执行是main瓶颈。 T-SQL 标量 UDF 内联自动将内联 UDF 转换为...