Embodiments of the invention disclose a data query method and apparatus, which is used for expanding a data query range. The method comprises the steps of receiving an input data query demand; according to the data query demand, determining a data query function; according to information used for describing the data query function and carried in pre-stored metadata, obtaining metadata corresponding to the data query function; according to the corresponding metadata, configuring the data query function in a preset database; and executing a data query by adopting the data query function in the database. In the way, after the required metadata is screened out according to the data query demand, the data query function is configured through the metadata; and the data query function can executea new data query, so that the data query range of a system is expanded.