The best replacement for mdb is accdb.

The best alternatives to mdb are rated as following:
★★★★★  accdb
★★★★★  mde
★★★  adp
★★  jms
★★  gdb
★★  mdp
★  spring jms
★  ejb
★  ldb
★  accdb performance
★  session bean
★  mde access
★  sdf
  messagelistener
  dbf
  mib
  jms client

Your alternative for mdb is not listed? Suggest!
Speaking about mdb, one probably shouldn't forget about jms.

Other search terms related to mdb and their ratings are:
★★★★★ jms
★★★ jms example
★ mq
You have in mind a companion for mdb and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of mdb in all years. Click on graph for more.
mdb
accdb
mde