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Designing databases
The first step in creating a relational database is to construct a data model, which is a precise, complete definition of the data you want to store. After you prepare your data model, you must implement it as a database and tables. To implement your data model, you first select a data type for each column and then you create a database and tables and populate the tables with data. You can also implement fragmentation strategies and control access to your data.
Designing and Implementing a Database
The Informix® Database Design and Implementation Guide provides information to help you design, implement, and manage your Informix databases. It includes data models that illustrate different approaches to database design and shows you how to use structured query language (SQL) to implement and manage your databases.
Object-relational databases
Create and use extended data types in Informix®
Complex data types
Named row types
Select a name for a named row type

Designing databases
The first step in creating a relational database is to construct a data model, which is a precise, complete definition of the data you want to store. After you prepare your data model, you must implement it as a database and tables. To implement your data model, you first select a data type for each column and then you create a database and tables and populate the tables with data. You can also implement fragmentation strategies and control access to your data.
- Designing and Implementing a Database
  The Informix® Database Design and Implementation Guide provides information to help you design, implement, and manage your Informix databases. It includes data models that illustrate different approaches to database design and shows you how to use structured query language (SQL) to implement and manage your databases.

Select a name for a named row type

You can give a named row type any name that you like provided that the name does not violate the conventions established for the SQL identifiers. The conventions for SQL identifiers are described in the Identifier segment in the Informix® Guide to SQL: Syntax. To avoid confusing type and table names, the examples in this manual designate named row types with the _t characters at the end of the row type name.

You must have the Resource privilege to create a named row type. The name that you assign to a named row type should not be the same as any other data type that exists in the database because all data types share the same name space. In an ANSI-compliant database, the combination owner.type must be unique within the database. In a database that is not ANSI-compliant, the name must be unique within the database.

Important: You must grant USAGE privileges on a named row type before other users can use it.