DDS for physical and logical files

You can use data description specifications (DDS) to define physical and logical database files. This topic provides the information you need to code the positional and keyword entries that define these files.

• What's new for V5R4
  This topic highlights changes to the DDS for physical and logical files for V5R4.
• Printable PDF
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• Define physical and logical files using DDS
  This topic provides information about coding physical and logical files that use DDS, and describes the positional entries used by these files.
• Keyword entries for physical and logical files (positions 45 through 80)
  This topic lists valid keyword entries for describing physical and logical files. They are typed in positions 45 through 80 (functions).
• Unicode considerations for database files
  Unicode is a universal encoding scheme for written characters and text that enables the exchange of data internationally. Follow this topic to learn about how to specify DDS position 30 through 37 and position 45 through 80 for describing database files. Positions not mentioned have no special considerations for Unicode.
• DBCS considerations for database files
  These topics describe the DBCS considerations for the positional entries and keyword entries for physical and logical files, along with general considerations for database files.