Library Version 18.1.40

DbMpoolFile::sync()
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## DbMpoolFile::sync()

    #include <db_cxx.h>

    int
    DbMpoolFile::sync();

The `DbMpoolFile::sync()` method writes all modified pages associated with the DbMpoolFile back to the source file. If any of the modified pages are pinned (that is, currently in use), `DbMpoolFile::sync()` will ignore them.

The `DbMpoolFile::sync()` method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.

### Class

DbEnv, DbMpoolFile

### See Also

Memory Pools and Related Methods

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