SQL email contacts database?

[solway]

Does anyone know of a way to make a database of email/phone contacts and link it up with thunderbird clients (so its shared and syncable between multiple users)??

can it be done with SQL?

complete novice in this area...
can tutorials would be helpful

 

[solway]

any stand only databases that can be used directly to thunderbird

don't have exchange you see.

i'am using gmail mail for your domain. however the contacts don't sync with google right due to mapping of fields are different. im feeling like i am losing data due to this.

not only that, i also require the same database to be used for multi users - gmail doesn't provided for this, only the calendar does this.