Configuring connections to data sources

CICS® supports access to external data in Db2® and DL/I databases and in VSAM and BDAM data sets.

Access to Db2 uses the CICS Db2 attachment facility. Access to DL/I databases uses Database Control (DBCTL). For an overview of these interfaces, see Overview of the CICS Db2 interface and Overview of Database Control (DBCTL).