CREATEFUNCTION udfProductInYear ( @model_yearINT ) RETURNSTABLE AS RETURN SELECT product_name, model_year, list_price FROM production.products WHERE model_year=@model_year; 语法类似于创建用户定义函数的语法。 RETURNS TABLE指定函数返回一个表。如您所见,没有BEGIN…END语句。该语句只查询production.prod...
下面的表格简要描述实现 SQL Server FUNCTION 表参数的整体流程: 每一步的详细实现 第一步:创建一个表类型 首先,我们需要定义一个表类型MyTableType,用于描述我们将要传递的数据的结构。 CREATETYPEMyTableTypeASTABLE(IDINT,Name NVARCHAR(50)); 1. 2. 3. 4. 注释: CREATE TYPE是用于创建用户定义的表类型的命...
CREATEFUNCTIONdbo.MyTableValuedFunction(@paramINT)RETURNSTABLEASRETURN(SELECT*FROMMyTableWHEREColumn1=@param); 1. 2. 3. 4. 5. 6. 7. 解释: CREATE FUNCTION: 创建一个新函数。 dbo.MyTableValuedFunction: 定义函数名,前缀dbo表示此函数属于数据库所有者。 @param INT: 定义输入参数类型。 RETURNS TABL...
] parameter_data_type [ NULL ] [ = default ] } [ , ...n ] ) RETURNS { return_data_type } [ WITH <clr_function_option> [ , ...n ] ] [ AS ] EXTERNAL NAME <method_specifier> [ ; ] Syntax for CLR table-valued functions. syntaxsql 复制 CREATE [ OR ALTER ] FUNCTION [ ...
1、table-valued function As to create table-valued function, there are 2 ways, look at the example below please, it’s suitable for simple logic: USERedgateCREATETABLEDBO.TestCount_1(IDint,C1VARCHAR(400),C2VARCHAR(300),C3VARCHAR(150)NOTNULL,C4VARCHAR(80),C5VARCHAR(38)NOTNULL)CREATETABLE...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric Creates a new table in the database. Note For reference to Warehouse in Microsoft Fabric, visit CREATE TABLE (Fabric Data Warehouse). For reference to Azure Synapse Analytics and Analytics ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric Creates a new table in the database. Note For reference to Warehouse in Microsoft Fabric, visit CREATE TABLE (Fabric Data Warehouse). For reference to Azure Synapse Analytics and Analytics ...
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...
SQ = 服务队列TA = 程序集 (CLR) DML 触发器TF = SQL table-valued-functionTR = SQL DML 触发器TT = 表类型UQ = UNIQUE 约束X = 扩展存储过程适用于:SQL Server 2014 (12.x) 及更高版本、Azure SQL Database、Azure Synapse Analytics、Analytics Platform System (PDW) 。ST = STATS_TREE适用于:...
标量函数(Scalar Function):返回单个值。可以用于计算、转换和处理数据。例如,可以创建一个标量函数来计算两个数的和。 示例代码: 示例代码: 推荐的腾讯云相关产品:腾讯云数据库SQL Server版(https://cloud.tencent.com/product/sqlserver) 表值函数(Table-Valued Function):返回一个表格作为结果集。可以用于查询和处理...