I made a C compiler using bison/flex and a postgres database schema to gather and link genome data extracted from EMBL or GenBank (GBK) files. After that, one can ask SQL queries and explore several genomes at once. These tools were useful for our research group in the last three years and I thought it can also can help other people.
The tools are available through direct download from sourceforge "dot" net or subversion checkout. Please, if found a bug let me know. About the subversion, I can add new developers to the subversion project in order to improve the parser.
Access the tools via the annexed link.
http://sourceforge.net/projects/cpdb