- Purpose

The bcheck program is a C-ISAM utility program that checks and repairs C-ISAM index files. You should run this utility whenever a system crash occurs or whenever the integrity of a C-ISAM index may be compromised.

The bcheck program compares an index file (.idx) to a data file (.dat) to see if the two are consistent. If they are not, bcheck asks if you want to delete and rebuild the corrupted indexes.

Using bcheck to repair files is not a substitute for transaction management. You can repair the structure of a file through bcheck, but you cannot correct lost or inconsistent application data.

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Topic ID: 720175