August 2010
Intermediate to advanced
526 pages
23h 39m
English
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Name
integrity_check — Initiate a database file integrity verification
Common Usage
PRAGMA [database.]integrity_check; PRAGMA [database.]integrity_chcek(max_errors);
Description
The integrity_check pragma runs a self-check on the
database structure. The check runs through a battery of tests
that verify the integrity of the database file, its structure,
and its contents. Errors are returned as text descriptions in a
single-column table. At most,
are reported before the integrity check aborts. By
default, max_errors
is 100.max_errors
If no errors are found, a single row
consisting of the text value ok will be returned.
Unfortunately, if an error is found, there is typically very little that can be done to fix it. Although you may be able to extract some of the data, it is best to have regular dumps or backups.
See Also
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