您可以使用一般查詢語法,從 Transact-SQL 語言存取 SQL Server 中的 UDT 功能。 定義UDT資料表和資料行,並操作UDT資料。
In order to use a user-defined type (UDT) in Microsoft SQL Server, you must register it. Registering a UDT involves registering the assembly and creating the type in the database in which you wish to use it. UDTs are scoped to a single database, and cannot be used in multiple database...
SQL Server uses this attribute to determine the field order for UDTs with multiple values.For an example of a UDT defined with Native serialization, see the Point UDT in Create user-defined types with ADO.NET.UserDefined serializationThe UserDefined format se...
This topic provides reference information about user-defined types and table-valued parameters in Microsoft SQL Server and their compatibility with Amazon Aurora MySQL. It explains the differences in feature support between SQL Server and Aurora MySQL, highlighting that Aurora ...
User-Defined Table Types In SQL Server 2008, a user-defined table type is a user-defined type that represents the definition of a table structure. You can use a user-defined table type to declare table-valued parameters for stored procedures or functions, or to declare table variables that ...
sql: nested user-defined types (UDTs)#140217 New issue OpenDescription mgartner opened on Jan 31, 2025· edited by cockroach-jira-scripts Edits In Postgres: CREATE TYPE t1 AS ENUM ('foo', 'bar'); -- CREATE TYPE CREATE TYPE t2 AS (a t1, b t1); -- CREATE TYPE SELECT ('foo',...
CREATE TYPE 语法可用于创建本机SQL Server用户定义的数据类型和 UDT。 使用UDT 创建表、变量或参数从2005 SQL Server开始,用户定义类型可用作表的列定义、Transact-SQL 批处理中的变量或 Transact-SQL 函数或存储过程的参数。 本节内容 创建User-Defined类型 ...
For more information about assemblies in SQL Server, see Assemblies (Database Engine). Create the user-defined aggregate that references the registered assembly using the CREATE AGGREGATE statement.Executing CLR code is off by default in SQL Server. You can create, alter, and drop database ...
SQL Server Management Studio returns user-defined type values in binary representation. To return user-defined type values in string or XML format, use CAST or CONVERT. Performing Data Type Conversions with User-defined Types You can perform implicit and explicit conversion with user-defined types ...
The Define User-Defined Types window appears. Select Create New Type, or, right-select in the List of User-Defined Types and select Create New Type. The User Defined Type Information section is enabled. In the Type Name field, enter the name of the User Defined Type. ...