Resources you can access from a CICS environment that includes DBCTL

Figure 4 summarizes the resources you can access from a CICS® environment that includes DBCTL.

Figure 4. Resources you can access from a CICS environment that includes DBCTL
 The resources that can be accessed in a CICS-DBCTL environment are as follows.  CICS-managed local or remote resources, such as VSAM files. DEDBs and DL/I full function databases (via DBCTL). DL/I full function databases (via remote DL/I). DB2 databases (via DB2). GSAM files (via BMPs).

A single CICS task can use DB2® tables, IMS™ databases (using DBCTL or remote DL/I), and CICS-managed local or remote resources (for example, VSAM files).

The CICS-DB2 and the CICS-DBCTL interfaces are similar in that they both use the task-related user exit interface, and have a two-phase commit process. However, they differ in a number of respects. For example, CICS supports DBCTL and remote DL/I, and has to determine at PSB schedule time which of them is being used. For more information, see Other methods for accessing DL/I.

Related concepts
Overview of Database Control (DBCTL)
Summary of the benefits of DBCTL
Overview of DL/I request handling in CICS
Connecting to DBCTL
CICS-IMS DBCTL environment
Coordinator control subsystem (CCTL)
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