For more information, see CREATE TYPE and Composite Types in the PostgreSQL documentation. Document Conventions User-defined functions for T-SQL Identity and sequences for T-SQL Próximo tópico:Identity and se
MERGE for T-SQL PIVOT and UNPIVOT for T-SQL Synonyms for T-SQL SQL Server TOP and FETCH and MySQL LIMIT for T-SQL Triggers for T-SQL User-defined functions for T-SQL User-defined types for T-SQL Identity and sequences for T-SQL Managing statistics for T-SQL...
SQL Server 2008 supports user-defined functions and built-in, system, functions. Scalar Functions User-defined scalar functions return a single data value of the type defined in the RETURNS clause. For an inline scalar function, there is no function body; the scalar value is the result of a...
In Postgres: CREATE TYPE t1 AS ENUM ('foo', 'bar'); -- CREATE TYPE CREATE TYPE t2 AS (a t1, b t1); -- CREATE TYPE SELECT ('foo', 'bar')::t2; -- row -- --- -- (foo,bar) -- (1 row) -- SELECT pg_typeof(('foo', 'bar')::t2); -- pg_typeof -- --- -- ...
This section describes the migration syntax of Oracle PL/SQL Collections. The migration syntax decides how the keywords/features are migrated.A user-defined type (UDT) is
The Microsoft.SqlServer.Server.SqlUserDefinedTypeAttribute.ValidationMethodName property of the Microsoft.SqlServer.Server.SqlUserDefinedTypeAttribute allows you to supply the name of a validation method that the server runs when data is assigned to a UDT or converted to a UDT. ValidationMethodName ...
Schema-bound views and functions with expressions in their definitions that reference the type. Parameters of functions and stored procedures. To find columns dependent on a user-defined type sys.columns (Transact-SQL) The following example retrieves metadata about columns defined on user-defined ty...
In the case of input and input/output parameters, the application must also set the OracleParameter UdtTypeName property to the user-defined type name of the parameter. In certain cases, where Oracle UDTs are part of a type hierarchy, the custom type must be instantiated as a specific type...
Defined List Types 未來的 Microsoft SQL Server 版本將移除這項功能。請避免在新的開發工作中使用這項功能,並規劃修改目前使用這項功能的應用程式。 Where appropriate, SQL-DMO member functions that return a reference on a SQLObjectList object are implemented to return a reference on a typed list of ...
About Parallel Execution of Functions About Other Types of Parallelism Degree of Parallelism Rules for SQL Statements 8.5.1 About Parallel Queries You can use parallel queries and parallel subqueries in SELECT statements and execute in parallel the query portions of DDL statements and DML stateme...