Q. What are disadvantages of using ADBC to CALL PROCEDURE? ยท Complex coding using SQL interface No syntax check at design time. Q. What is bottom-up approach in HANA DB while creating proxy? Ans. Whenever an Information Model or a Procedure is created in HANA DB, a View Proxy or Procedure Proxy is created in ABAP Stack respectively. Which means that an object already exists in a DB and in order to communicate with the DB object from ABAP stack, you need to create a proxy. Q. What is the disadvantage of using Proxies? Ans. 1. Lifecycle management of HANA vs ABAP object. No Access Control of Procedure. No extensibility