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 ...
How to: Attach a Database File to SQL Server Express How to: Change the Configuration Settings for a Database (SQL Server Management Studio) How to: Create a Database (SQL Server Management Studio) How to: Create User-Defined Data Types (SQL Server Management Studio) How to: Delete a Da...
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',...
Learn how to create a user-defined aggregate object inside SQL Server that is programmed in a CLR assembly.
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 ...
Figure 1 Main UDF Return Types Return TypeMain Features ScalarSimilar to functions in other languages. Returns a single value of a scalar datatype. Can return user-defined datatypes. Inline tableReturns a rowset of the SQL Server table datatype. Extrapolates the structure of the rowset...