DBsFromTag splits comma separated DB names from the SQL queries file, validates them against the DB map, and returns a list of valid names.

DBConfig represents an SQL database's configuration.

Jobber represents the tooling required to run a job server.

Task represents an SQL query with its prepared and raw forms.

DBs represents a map of *sql.DB connections.

ResultBackends represents a map of *sql.DB connections.

Tasks represents a map of prepared SQL statements.