Linkifier is not the first tool that attempts to identify Foreign Key constraints in relational databases. But it is FREE, open source and comprehensive.
| IBM InfoSphere Discovery | Informatica Developer | Oracle Data Modeler | Xcase Relate-DB | Linkifier | |
|---|---|---|---|---|---|
| Free? | no | no | yes | no | yes |
| Uses name similarity? | no | yes | yes | no | yes |
| Uses data type similarity? | no | yes | yes | yes | yes |
| Uses data similarity? | yes | yes | no | yes | yes |
| Supports multi-column FKs? | no | no | no | no | yes |