FinalizeDSN will return a finalized DSN URI.

GetDriverName returns the driver name of a given DSN.

HandleError returns the right sqlcon.Err* depending on the input error.

HelpMessage returns a string explaining how to set up SQL using environment variables.

ParseConnectionOptions parses values for max_conns, max_idle_conns, max_conn_lifetime from DSNs.

ErrConcurrentUpdate is returned when the database is unable to serialize access due to a concurrent update.

ErrNoRows is returned when a SQL SELECT statement returns no rows.

ErrUniqueViolation is returned when^a SQL INSERT / UPDATE command returns a conflict.