一.摘要表值参数(Table-valued parameters)简称TVP,是SQL Server2008中引入的一种新特性,它提供了一种内置的方式,让客户端应用可以只通过单独的一条参化数SQL语句,就可以向SQL Server发送多行数据。 二.简介在表值参数出现以前,当需要发送多行数据到SQL Server,我们只能使用一些替代方案来实现: (1)
You can significantly reduce the number of round-trips by usingtable valued parametersto stream many records to the stored procedure at once. 关于table valued parameters,例子网站是 http://mikesdotnet.wordpress.com/2013/03/17/inserting-data-into-a-sql-server-database-using-a-table-valued-parameter...
表值参数(Table-valued parameters)简称TVP,是SQL Server 2008中引入的一种新特性,它提供了一种内置的方式,让客户端应用可以只通过单独的一条参化数SQL语句,就可以向SQL Server发送多行数据。 二.简介 在表值参数出现以前,当需要发送多行数据到SQL Server,我们只能使用一些替代方案来实现: (1) 使用一连串的...
By using multiple records in a single statement or routine, round trips to the server can be reduced. You can declare this using a table that is defined by the user. In 2008, the initialization of User-defined table types (UDTTs) and TVPs Table-valued parameters (TVP) were done for us...
/* Create a table type. */ CREATE TYPE LocationTableType AS TABLE ( LocationName VARCHAR(50) , CostRate INT ); GO /* Create a procedure to receive data for the table-valued parameter. */ CREATE PROCEDURE dbo. usp_InsertProductionLocation @TVP LocationTableType READONLY ...
For a table-valued parameter, we need a user-defined table type (UDTT). UDTT can be created with the following T-SQL statement. CREATE TYPE UDTT_Country AS TABLE( CountryName nvarchar(100), CurrencyName nvarchar(50) ) GO Note: Syntax for creating a user-defined table type is similar ...
適用於:SQL ServerAzure SQL DatabaseAzure SQL 受控執行個體Azure Synapse AnalyticsAnalytics Platform System (PDW) 本節所述的資料表值參數描述元欄位是使用 SQLSetDescField 和SQLSetDescField 搭配實作參數描述元的控制碼來操作, (IPD) 。 備註 SQL_DESC_...
The size of table-valued parameters is limited only by server memory. 备注 Support for Table-Valued Parameters is available starting with Microsoft JDBC Driver 6.0 for SQL Server. You can't return data in a table-valued parameter. Table-valued parameters are input-only; the OUTPUT keyword is ...
Support for Table-Valued Parameters is available starting with Microsoft JDBC Driver 6.0 for SQL Server. You can't return data in a table-valued parameter. Table-valued parameters are input-only; the OUTPUT keyword is not supported. For more information about table-valued parameters, see the fol...
After you create a table type, you can declare table-valued parameters based on that type. The following Transact-SQL fragment demonstrates how to declare a table-valued parameter in a stored procedure definition. Note that the READONLY keyword is required for declaring a table-valued parameter....