| Entity name | Entity type | Primary key | # attributes |
| access | independent | aid | 4 |
| accesslog | independent | aid | 9 |
| aggregator_category | independent | cid | 4 |
| aggregator_category_feed | independent | fid, cid | 2 |
| aggregator_category_item | independent | iid, cid | 2 |
| aggregator_feed | independent | fid | 11 |
| aggregator_item | independent | iid | 8 |
| authmap | independent | aid | 4 |
| blocks | independent | 11 | |
| blocks_roles | independent | module, delta, rid | 3 |
| book | independent | vid | 4 |
| boxes | independent | bid | 4 |
| cache | independent | cid | 5 |
| cache_filter | independent | cid | 5 |
| cache_menu | independent | cid | 5 |
| cache_page | independent | cid | 5 |
| client | independent | cid | 11 |
| client_system | independent | cid, name | 3 |
| comments | independent | cid | 16 |
| contact | independent | cid | 6 |
| file_revisions | independent | fid | 4 |
| files | independent | fid | 6 |
| filter_formats | independent | format | 4 |
| filters | independent | 4 | |
| flood | independent | 3 | |
| forum | independent | vid | 3 |
| history | independent | uid, nid | 3 |
| locales_meta | independent | locale | 6 |
| locales_source | independent | lid | 3 |
| locales_target | independent | 5 | |
| menu | independent | mid | 7 |
| node | independent | nid | 12 |
| node_access | independent | nid, gid, realm | 6 |
| node_comment_statistics | independent | nid | 5 |
| node_counter | independent | nid | 4 |
| node_revisions | independent | vid | 9 |
| node_type | independent | type | 14 |
| permission | independent | 3 | |
| poll | independent | nid | 3 |
| poll_choices | independent | chid | 5 |
| poll_votes | independent | 4 | |
| profile_fields | independent | fid | 13 |
| profile_values | independent | 3 | |
| role | independent | rid | 2 |
| search_dataset | independent | 3 | |
| search_index | independent | 6 | |
| search_total | independent | word | 2 |
| sequences | independent | name | 2 |
| sessions | independent | sid | 6 |
| system | independent | filename | 9 |
| term_data | independent | tid | 5 |
| term_hierarchy | independent | tid, parent | 2 |
| term_node | independent | tid, nid | 2 |
| term_relation | independent | 2 | |
| term_synonym | independent | 2 | |
| url_alias | independent | pid | 3 |
| users | independent | uid | 18 |
| users_roles | independent | uid, rid | 2 |
| variable | independent | name | 2 |
| vocabulary | independent | vid | 11 |
| vocabulary_node_types | independent | vid, type | 2 |
| watchdog | independent | wid | 10 |