The Adapter for IMS supports the DBCTL environment to connect
to IMS databases.
Advantages of IMS DBCTL
The advantages of using DBCTL include the following:
- Direct communication between your application and IMS. Your task
establishes its own connection to IMS by loading and calling the
DBCTL subsystem when needed. It then issues DL/I calls directly
to IMS.
- Enhanced security. You have access to standard security
systems through the standard SAF interface. The SAF interface is
supported by security products such as RACF, CA-TOP SECRET, and
CA-ACF2. Before allowing access to a particular PSB, the system
verifies that the user is authorized to read the PSB.
- Dynamic PSB selection and switching within your application. When you
have Access Files, you do not have to issue a command to select
a PSB, so the selection is transparent to your application.
- Sharing of PCBs between applications. Multiple users
can share the same PCBs, reducing the number of duplicate PCBs in
a PSB and minimizing overhead.
- IMS SET ? query command. DBCTL enables you to view current
settings (PSB, IMSSEC, IMSCLASS, IMSMODE, IMSPZP) by issuing the
IMS SET ? query command.
- Read/write capabilities.
- Creation of Master and Access files using the Web Console.