ADBC stands for ABAP Database Connectivity in ABAP for SAP HANA. ADBC is used to run SAP HANA based queries directly using SAP ABAP code. ABDC was introduced in SAP Netweaver 7.4 version with ADBC APIs to call queries using a simple interface.

You can use ADBC when there are no ABAP Development Tools (ADT) available and SAP HANA database running as a secondary database.