COBOL Manual for TNS/E Programs (H06.08+, J06.03+)

relationship
If position is present, relationship is limited to:
key
determines, with relationship, where the file position indicator is to be set. The file
position indicator is to be set such that the next record to be read from file-name contains
a key value having the specified relationship to the current value of key.
The value of key is restricted by the presence or absence of position. If position is
present, key must be either:
• A prime record key or leftmost subordinate of a prime key for an indexed or queue
file
• An alternate key or leftmost subordinate of an alternate key for an indexed, queue,
or relative file
If position is absent, key can be one of:
• The relative key for a relative file
• The prime record key or leftmost subordinate of the prime key for an indexed or queue
file
• An alternate key or leftmost subordinate of an alternate key for a file of any
organization
A reference modifier can be applied to key, but leftmost-character-position
must be the constant 1. For reference modifier syntax, see Reference Modifier Syntax
(page 92).
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