Nah, they are pretty constrained data description. AFAIK, you can't even substitute environment variables. They are also apparently very hard to use, to the po

Nah, they are pretty constrained data description. AFAIK, you can't even substitute environment variables. They are also apparently very hard to use, to the point that many people can't and several web sites exist that will take your database server, username, and password and assemble a connection string for you. (I can see no issues with that! None!)