persistent_load(pid) Raise an UnpicklingError by default. If defined, pe

fetchone() Fetches the next row of a query result set, returning a single sequence, or

total_changes Returns the total number of database rows that have been modified, inserted, or deleted since the database connection

ndbm.close() Close the ndbm database.

dbm.dumb.open(filename[, flag[, mode]]) Open a dumbdbm database and return a dumbdbm object. The filename

gdbm.sync() When the database has been opened in fast mode, this method forces any unwritten data to be written to the disk

dbm.gnu.open(filename[, flag[, mode]]) Open a gdbm database and return a gdbm object. The filename

object.__getnewargs__() This method serve a similar purpose as __getnewargs_ex__() but for protocols 2 and newer

close() This closes the database connection. Note that this does not automatically call commit(). If you just close

object.__reduce_ex__(protocol) Alternatively, a __reduce_ex__() method may be defined. The only difference is this