| |||
| ιεραρχική βάση δεδομένων | |||
| Angielski tezaurus | |||
| |||
| A database structured in a tree/root or parent/child relationship (Each parent can have many children, but each child may have only one parent) | |||
| |||
| ιεραρχική βάση δεδομένων | |||
| Angielski tezaurus | |||
| |||
| A database structured in a tree/root or parent/child relationship (Each parent can have many children, but each child may have only one parent) | |||
