Supporting On Demand Business Applications with the IBM Problem Determination Tools (APA, DT, DT with Advanced Facilities, FA, File Export, FM, WS)

844 Supporting On Demand Business Applications with the IBM Problem Determination Tools

28.3 Edit/browse without using a view

Next we discuss editing and browsing without using a view.

28.3.1 Preparation

From the Primary Option Menu shown in Figure 28-9 we select option 1 (Browse data) and

press Enter.

Figure 28-9 Primary Options Menu

FM/IMS will now show the Browse Entry Panel (Figure 28-10 on page 845). In this panel we

can see that a dynamic PSB will be used. We defined this in a previous step.

On this panel we specify:

򐂰 For the DBD

– Data set name 1: the DBD library (or libraries) that the database definitions are to be

obtained from (in this example, CHABERT.IMS.TRADER.DBDLIB).

– Member: the name of the database (in this example, DR1E). If we leave the field blank

or enter a pattern, a member selection list is displayed. We can select a member from

this list.

򐂰 Processing options

When accessing the database we can do that in two modes:

– DL/I mode

When the database is offline, we access it in DLI mode. In DLI mode, we must specify

the data sets that we want to update, and security is controlled at the data set level

(that is, if we have access to the data sets via ISPF, we can access them via FM/IMS in

DLI mode). These data sets are allocated to the TSO address space and we manually

control the environment by using the Set Options panels. This type of access is

typically used by developers. While DLI mode usually provides single user access, we

Chapter 28. File Manager/IMS 845

can share databases with other users by working with the IRLM option turned on

(depending on your IMS subsystems definitions).

–BMP mode

When the database is allocated to an online system, we access it in BMP mode. BMP

mode provides strict controls that are suited to live production environments. For

example, we can only access those database data sets that have been defined for the

IMS subsystem. Any changes that we make are logged in the IMS online log data set

and IMS controls such things as multi-user access to the segment data and automatic

backout if needed.

Figure 28-10 Browse Entry Panel

846 Supporting On Demand Business Applications with the IBM Problem Determination Tools

After completing the information in the Browse Entry Panel we press Enter and the Database

Data Set Specification panel (as shown in Figure 28-11) will be shown. Here we enter the

data set names for the DBD. We can also enter a slash (/) to choose to save these names in

our profile to be reused next time we access this DBD.

Figure 28-11 Database Data Set Specification panel