Abstract: A staging repository includes a message queue table corresponding to a data source to store a message queue transmitted from the data source. A mapping table corresponding to the data source stores relationship information between data fields of the message queue and data fields of at least one schema table. A core program generator retrieves the message queue stored in the message queue table and automatically generates program code in real-time based on the relationship information stored in the mapping table, the fields that are populated in the specific message being processed, and (optionally) an event code included in the message. The program code parses data to be extracted from the data fields of the message queue. A normalized staging schema stores the data extracted by the core program generator into the at least one schema table.