yum command output Error: Rpmdb checksum is invalid: pkg checksums

Issue

yum command output the following errors.

Error: Rpmdb checksum is invalid: pkg checksums

Running Transaction
/usr/lib/python2.6/site-packages/yum/history.py:763: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
  if checksum == sql_checksum:
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 298, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 227, in main
    return_code = base.doTransaction()
  File "/usr/share/yum-cli/cli.py", line 588, in doTransaction
    resultobject = self.runTransaction(cb=cb)
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 1537, in runTransaction
    self.skipped_packages, rpmdb_problems, cmdline)
  File "/usr/lib/python2.6/site-packages/yum/history.py", line 943, in beg
    pid   = self.pkg2pid(txmbr.po)
  File "/usr/lib/python2.6/site-packages/yum/history.py", line 800, in pkg2pid
    return self._ipkg2pid(po, create)
  File "/usr/lib/python2.6/site-packages/yum/history.py", line 794, in _ipkg2pid
    return self._pkgtup2pid(po.pkgtup, csum, create)
  File "/usr/lib/python2.6/site-packages/yum/history.py", line 777, in _pkgtup2pid
    checksum))
  File "/usr/lib/python2.6/site-packages/yum/sqlutils.py", line 168, in executeSQLQmark
    return cursor.execute(query, params)
sqlite3.ProgrammingError: You must not use 8-bit bytestrings unless you use a text_factory that can interpret 8-bit bytestrings (like text_factory = str). It is highly recommended that you instead just switch your application to Unicode strings.