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
This topic provides reference information about user-defined types in SQL Server and PostgreSQL, which is valuable for database administrators and developers migrating from Microsoft SQL Server 2019 to Amazon Aurora PostgreSQL. You can gain insight into how both database systems ...
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...
Summary: in this tutorial, you will learn how to create PostgreSQL user-defined data type using CREATE DOMAIN and CREATE TYPE statements. Besides built-in data types, PostgreSQL allows you to create user-defined data types through the following statements: CREATE DOMAIN creates a user-defined data...
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 ...
You can define your own data types and the functions that operate on these data types. You can define indexes on some kinds of user-defined data types.
可以使用常规查询语法从 Transact-SQL 语言访问 SQL Server 中的用户定义的类型(UDT)功能。 UDT 可用于数据库对象的定义、作为 Transact-SQL 批处理中的变量、函数和存储过程中的变量,以及函数和存储过程中的参数。 在本部分中 展开表 品描述 定义用户定义的类型...
This differs from the rules for PL/SQL functions and procedures, where the parentheses are optional for calls that have no arguments. Storage of User-Defined Types Oracle stores and manages data of user-defined types in tables. It automatically and invisibly maps the complex structure of user-de...
public interface ISqlUserDefinedDataType : ISqlType, IDatabaseType, IModelNamed, ISqlTypeSpecifier, IDatabaseTypeSpecifier, ISqlExtendedPropertyHost, ISqlOwnedObject, ISqlLegacyDataConstraintTarget, ISqlModelElement, IScriptSourcedModelElement, IModelElement, IModelPropertyContainer, IModelEntity, IModelAnn...
{ this.m_Bytes = bytes; } #endregion #region UserDefinedType boilerplate code public bool IsNull { get { return this.m_String == null && this.m_Bytes == null; } } public static Utf8String Null { get { Utf8String str = new Utf8String((string)...