DDS for physical and logical files

Type of name or specification for physical and logical files (position 17)

Type a value in this position to identify the type of name or, for logical files, the type of specification. If you specify a name type, the name is specified in positions 19 through 28.

The valid entries for physical files are:

Entry
Meaning

R
Record format name

Blank
Field name

K
Key field name
Note:
Specify only one R because a physical file can contain only one record format.

The valid entries for logical files are:

Entry
Meaning

R
Record format name

J
Join specification

Blank
Field name or select/omit AND condition

K
Key field name

S
Select field name

O
Omit field name

For more information on types of names, see Name for physical and logical files (positions 19 through 28). For more information on join specifications, see JOIN (Join) keyword--join logical files only.


[ Top of Page | Previous Page | Next Page | Table of Contents | Index ]