Applies to:SQL ServerAzure SQL DatabaseAzure SQL Managed Instance Creates a user-defined function (UDF), which is a Transact-SQL or common language runtime (CLR) routine. A user-defined function accepts parameters, performs an action such as a complex calculation, and returns the result of ...
SQL Server Advanced Functions FunctionDescription CASTConverts a value (of any type) into a specified datatype COALESCEReturns the first non-null value in a list CONVERTConverts a value (of any type) into a specified datatype CURRENT_USERReturns the name of the current user in the SQL Server...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) This article describes how to create a user-defined function (UDF) in SQL Server by using Transact-SQL. Limitations and restrictions User-defined functions can't be used ...
SQL SERVER 代码 加载程序集 USEInvestorRelationsCREATEASSEMBLY ExampleUDFFROM'E:\学习\SessionTest\TestKZCCGC\bin\Debug\TestKZCCGC.dll' 创建函数 1 2 3 CREATEFUNCTIONExampleUDFTwo() RETURNSnvarchar(1000) ASEXTERNALNAMEExampleUDF.UserDefinedFunctions.ExampleUDF; 表值函数: C#代码 1 2 3 4 5 6 7 8 ...
適用於:SQL ServerAzure SQL 資料庫Azure SQL 受控執行個體Microsoft Fabric 中的 SQL 資料庫SQL Server 2016 (13.x) 導入了即時作業分析,能夠同時在同一個資料庫資料表上執行分析和 OLTP 工作負載。 除了執行即時分析,您也可免除 ETL 和資料倉儲的需要。
[Microsoft.SqlServer.Server.SqlFunction] public static SqlBytes BinaryDecompress(SqlBytes inputBinary)//解密 { byte[] inputBytes = (byte[])inputBinary.Value; using (MemoryStream memStreamIn = new MemoryStream(inputBytes)) { using (GZipStream s = ...
SQL Server Azure SQL 数据库 Azure SQL 托管实例 Azure Synapse Analytics Analytics Platform System (PDW) Microsoft Fabric 中的 SQL 终结点 Microsoft Fabric 中的仓库 Microsoft Fabric SQL 数据库 可以使用PIVOT和UNPIVOT关系运算符将表值表达式更改为另一个表。PIVOT通过将表达式中的一个列的唯一值转换为输出中...
The AdventureWorks Product Reviews example application is a Web application that uses the SQLSRV driver of Microsoft Drivers for PHP for SQL Server. The application lets a user search for products by entering a keyword, see reviews for a selected product, write a review for a selected product,...
Parameters are used to exchange data between stored procedures and functions and the application or tool that called the stored procedure or function:Input parameters allow the caller to pass a data value to the stored procedure or function. Output parameters allow the stored procedure to pass a ...
SQL Copiere -- Try to use a function as a parameter value. -- This produces an error message. EXEC dbo.uspGetWhereUsedProductID 819, GETDATE(); Instead, use a variable to pass a function value to the parameter, as in the following example:SQL Copiere ...