When you issue a report request, the Interface communicates with the IMS DBMS through DL/I calls that it generates on your behalf. This appendix discusses trace facilities that are available to help you solve problems:
FSTRACE shows the state of the PCB before and after each DL/I call; it also provides, for each call, the parameters, key feedback area, SSA buffer, return code, and I/O buffer contents. FSTRACE2 shows the Userid, Filename and return code used and returned by the exit. FSTRACE4 provides a dump of the SSA buffer for each SSA generated by a given request. You can use this trace to see whether your requests produce qualified SSAs. In the DBCTL environment, FSTRACE4 provides additional statistics. |
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Information Builders |