cobol3.hlp (Topic list)
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Message 0248 (↑ Syntax Messages)
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  Message:      0248
 
  Text:         ISAM key <key-name> too long
 
  Explanation:  A data item that is to be used as an indexed
                sequential file key is longer than the maximum length
                allowed for such keys.
 
  Resolution:   Your COBOL System Reference contains a formula which
                you can use to find out how long indexed sequential file
                keys can be. Redefine the key accordingly.
                                    -♦-