Database file concepts

These topics provide some of the basic database concepts for setting up or working with IBM^® i5/OS™ database files.

• DB2 Universal Database for iSeries
  DB2 Universal Database™ for iSeries™ is the integrated relational database manager on the i5/OS operating system.
• Interfaces to DB2 Universal Database for iSeries
  DB2 Universal Database™ for iSeries™ provides several independent interfaces to the database.
• Database files
  A database file is one of the several types of the system object type *FILE. A database file contains descriptions of how input data is to be presented to a program from internal storage and how output data is to be presented to internal storage from a program.
• How database files are described
  This topic discusses the ways to describe records in database files.
• Database data protection and monitoring
  The system provides features to improve the integrity and consistency of your data. Two ways to protect data are enforcing business rules and enforcing data type rules.
• Database file sizes
  When designing files on the iSeries™ server, you should keep in mind the sizes for database files.