# Functions
CloseDBConn close database connection.
GetConn get master or slave connection from DB i.
New returns singleton instance of DB manager.
OpenDBConn connect to multiple DB sources (mysql only).
# Constants
ConnTypeMaster ...
ConnTypeSlave ...
MSSQL ...
MySQL ...
PostGres ...
# Structs
ConnStringBuilder ...
Manager ...
MultiDbConf represents for config for 1 master DB and several slave DB.