在SQL Server 中,创建表值函数的基本语法如下: CREATEFUNCTIONdbo.MyFunction(@Parameter1INT,@Parameter2VARCHAR(50))RETURNSTABLEASRETURN(SELECTColumn1,Column2FROMMyTableWHEREColumn1=@Parameter1ANDColumn2=@Parameter2) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 在上面的代码中: dbo.MyFu...
適用於:SQL Server 本文是關於在完整復原模式下,包含多個檔案或檔案群組的 SQL Server 資料庫。 這個範例當中,使用完整復原模式,名為 adb的資料庫包含三個檔案群組。 檔案群組 A 可讀取/寫入,而檔案群組 B 和檔案群組 C 則是唯讀的。 所有的檔案群組一開始都是在線上。 檔案...
What makes SQL Server table-valued functions more useful in some situations than sql views or sql stored procedures is like every sql function, at-sql table-valued functionalso accepts parameters. Also TVF's (table valued functions) can be referenced in sql SELECT queries just like a SQL Serve...
CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS TABLE [ WITH <function_option> [ , ...n ] ] [ AS ] RETURN [ ( ] ...
如果RETURNS 子句指定的 TABLE 类型带有列及其数据类型,则该函数是多语句表值函数。 内联表值函数范例: CREATE FUNCTION Sales.ufn_SalesByStore (@storeid int) RETURNS TABLE AS RETURN ( SELECT P.ProductID, P.Name, SUM(SD.LineTotal) AS 'YTD Total' ...
The main method of the table valued function must return a collection object that implements the IEnumerable or IEnumerator interfaces. If you are new to the concepts of Object-Oriented Programming, this may sound weird to you, but don’t worry we will see an example soon. ...
table lists the SQLSTATE values typically returned bySQLTablesand explains each one in the context of this function; the notation "(DM)" precedes the descriptions of SQLSTATEs returned by the Driver Manager. The return code associated with each SQLSTATE value is SQL_ERROR, unless noted ...
extends TableScan> tableScanClass) { return withOperandSupplier(b0 -> b0.operand(tableScanClass).anyInputs()) .as(JackyTableRenameRule.Config.class); } 以下是完整代码 代码语言:javascript 代码运行次数:0 运行 AI代码解释 package com.dafei1288; import org.apache.calcite.plan.RelOptRuleCall; im...
result set acts like a table, you can just return the data or you can join the results to other tables. TVFs can be created using TSQL or the Common Language Runtime (CLR) and in this tip we walk through a simple example of a CLR function that returns file level contents from a ...
For all installations of SQL Server, the default compatibility level is associated with the version of the Database Engine, as seen inthis table. For new development work, always plan to certify applications on the latest database compatibility level. ...