When it breaks: errors and debugging
How to read an RPG error, how to get into the debugger on a job that is not yours, and how to stop a program dying silently at three in the morning.
Articles tagged #diagnosi — 4 results
Messages, QSYSOPR and the job log
Where the system writes down what happens, why it is not a log directory, and how to read a job log without losing the morning to it.
SQLCODE -305: the FETCH that stops on NULLs
Eighty-two COALESCEs are not the answer. What is left in the variables when a FETCH meets a NULL, and why ALWNULL has nothing to do with it.
Finding out who holds a lock on an object
The file will not update and the batch is waiting: two commands find the job responsible.