Creating a user-defined aggregate function in SQL Server involves the following steps: Define the user-defined aggregate function as a class in a Microsoft .NET Framework-supported language. For more information about how to program user-defined aggregates in the CLR, see CLR user-defined aggregat...
Database objects that can use the rich programming model provided by the common language runtime include aggregate functions, functions, stored procedures, triggers, and types. Creating a CLR function in SQL Server involves the following steps: Define the function as a static method of a class ...
Applies to: SQL Server Azure SQL Managed Instance Creates a user-defined aggregate function whose implementation is defined in a class of an assembly in the .NET Framework. For the Database Engine to bind the aggregate function to its implementation, the .NET Framework assembly that contains the...
CREATE AGGREGATE (Transact-SQL) Creates a user-defined aggregate function whose implementation is defined in a class of an assembly in the .NET Framework. For the Database Engine to bind the aggregate function to its implementation, the .NET Framework assembly that contains the implementation must ...
Inline table-valued function (TVF) The following example creates an inline table-valued function (TVF) in the AdventureWorks2022 database. The function takes one input parameter, a customer (store) ID, and returns the columns ProductID, Name, and the aggregate of year-to-date sales as YTD ...
TheAGGREGATIONfunction specifies how to aggregate thevaluesfrom the select query. We can use SUM, COUNT, AVG, MIN or MAX, depending on what we want in the pivot table TheFORkeyword tells the PIVOT operator which column will be pivoted, ie the column that contains the values that will become...
To create a SQL Server aggregate Open an existingSQL Server Project, or create a new one. For more information, seeHow to: Create a SQL Server Project. From theProjectmenu, selectAdd New Item. SelectAggregatein theAdd New Item Dialog Box. ...
The CREATE FUNCTION (aggregate interface) statement is used to register a user-defined aggregate function at the current server. An aggregate function returns a single value that is the result of an evaluation of a set of like values, such as those in a column within a set of rows. ...
在SQL Server、Azure SQL 数据库和 Analytics Platform System (PDW) 中创建 Transact-SQL 或公共语言运行时 (CLR) 存储过程。 存储过程与其他编程语言中的过程类似,这是因为存储过程可以: 接受输入参数并以输出参数的格式向调用过程或批处理返回多个值。 包含用于在数据库中执行操作(包括调用其他过程)的编程语句。
syntaxsql Kopieren <order_clause> ::= { <column_name_in_clr_table_type_definition> [ ASC | DESC ] } [ , ...n ] <method_specifier> ::= assembly_name.class_name.method_name <clr_function_option> ::= { [ RETURNS NULL ON NULL INPUT | CALLED ON NULL INPUT ] | [ EXECUTE_AS_...