CONNECTION_STRING user:password@tcp(host:port)/databaseName.

import _ "github.com/go-sql-driver/mysql".

import _ "github.com/mattn/go-oci8".

import _ "github.com/lib/pq".

import _ "github.com/mattn/go-sqlite3".

import _ "github.com/denisenkom/go-mssqldb".