ops.so

berkeley db 4.6.21的源码。berkeley db是一个简单的数据库管理系统

m4_comment([$Id: ops.so,v 10.22 2002/08/30 20:01:36 bostic Exp $])

m4_ref_title(Access Methods,
    Access method operations,, am_conf/renumber, am/open)

m4_p([dnl
Once a database handle has been created using m4_ref(dbh_create), there
are several standard access method operations.  Each of these operations
is performed using a method referred to by the returned handle.
Generally, the database will be opened using m4_ref(dbh_open).  If the
database is from an old release of m4_db, it may need to be upgraded to
the current release before it is opened using m4_ref(dbh_upgrade).])

m4_p([dnl
Once a database has been opened, records may be retrieved (m4_ref(dbh_get)),
stored (m4_ref(dbh_put)), and deleted (m4_ref(dbh_del)).])

m4_p([dnl
Additional operations supported by the database handle include
statistics (m4_ref(dbh_stat)), truncation (m4_ref(dbh_truncate)),
version upgrade (m4_ref(dbh_upgrade)), verification and salvage
(m4_ref(dbh_verify)), flushing to a backing file (m4_ref(dbh_sync)),
and association of secondary indices (m4_ref(dbh_associate)).  Database
handles are eventually closed using m4_ref(dbh_close).])

include(db/m4.methods)

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