The HBase Adapter models the HBase REST APIs as relational tables and stored procedures that can be accessed with standard SQL. This enables access from standards-based tools.
The table definitions are dynamically retrieved. When you connect, the adapter connects to HBase and gets the list of tables and the metadata for the tables by querying the HBase REST server. Any changes to the remote data are immediately reflected in your queries.
Stored Procedures are function-like interfaces to the data source. Stored procedures model actions that typically cannot be represented as SELECT, INSERT, UPDATE, or DELETE statements. The stored procedures of the adapter surface the capabilities of the DDL (data definition language) in HBase.