| Similarity | Rank | |
|---|---|---|
| PostgreSQL | 0.898 | 39611 |
| MongoDB | 0.823 | 52765 |
| PHP | 0.818 | 6829 |
| SQL | 0.813 | 13022 |
| SQL_Server | 0.804 | 23796 |
| SQLite | 0.797 | 90513 |
| mysql | 0.770 | 64202 |
| Drupal | 0.761 | 14362 |
| Ruby_on_Rails | 0.740 | 78076 |
| Perl | 0.733 | 14697 |
| SQL_Server_[number] | 0.732 | 66332 |
| Hadoop | 0.725 | 32485 |
| database_server | 0.724 | 72876 |
| Magento | 0.715 | 46920 |
| WordPress | 0.708 | 8365 |
| NoSQL | 0.708 | 92921 |
| store_procedure | 0.708 | 80393 |
| Joomla | 0.706 | 31674 |
| Asp_. | 0.703 | 17682 |
| LDAP | 0.698 | 60201 |
| JSON | 0.698 | 32713 |
| jQuery | 0.696 | 25387 |
| Hibernate | 0.693 | 94436 |
| Oracle | 0.692 | 8538 |
| relational_database | 0.690 | 63461 |