Release 4.1: DB_EXCL
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## Release 4.1: DB_EXCL

The DB_EXCL flag to the DB->open() method now works for subdatabases as well as physical files, and it is now possible to use the DB_EXCL flag to check for the previous existence of subdatabases.

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Chapter 38. Upgrading Berkeley DB 4.0 applications to Berkeley DB 4.1 | Home | Release 4.1: DB->associate, DB->open, DB->remove, DB->rename