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Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
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Binary Search on a File
Hi Jack, No, you're right. 8-) An indexed file would be a better approach given CSJedi could reorganize his file to meet my requirement of monotonicity in his file's data. Sound's like primary key to me. 8-) I've just got relative files on the brain as the current project I'm working uses...- n8wxs
- Post #8
- Forum: COBOL General discussion
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Binary Search on a File
Hi Jack, If the file can be organized the way I stated with no missing records then the number of records can be determined with a WRITE record followed by a DELETE record. The WRITE will set the relative record key to the current (last) record in the file. Save the key value, DELETE this last...- n8wxs
- Post #6
- Forum: COBOL General discussion
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Binary Search on a File
If your file can be organized as a relative file, you can implement a binary search of the file by manipulating the relative record number. Doing so assumes that the file's record sequence is intact, record 1 to record N with no missing records. The data in the file's records must also have a...- n8wxs
- Post #4
- Forum: COBOL General discussion
