gdbm.firstkey() It’s possible to loop over every key in the database using this method and the nextkey() method

create_function(name, num_params, func) Creates a user-defined function that you can later use from within SQL statements under

object.__getnewargs_ex__() In protocols 4 and newer, classes that implements the __getnewargs_ex__() method can

sqlite3.sqlite_version_info The version number of the run-time SQLite library, as a tuple of integers.

ndbm.close() Close the ndbm database.

close() Close the cursor now (rather than whenever __del__ is called). The cursor

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

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

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

execute(sql[, parameters]) This is a nonstandard shortcut that creates a cursor object by calling the cursor()