Passing Arguments to Scheduler Chains
Dear fellows of the Oracle,
can I pass arguments to programs within a chain?
What already works is calling a program from a job, passing an argument to the program. So far, so good.
What I'm trying to do is to run a Scheduler Chain, where one of its steps starts the said program.
Now, when I create a job to run the chain, I cannot add an argument value anymore with
DBMS_SCHEDULER.SET_JOB_ARGUMENT_VALUE
because this throws an ora-27475.
Looking at the docs it seems as if there's no way to do what I want - which I thought I could take for granted...
Any ideas, anyone?
I'm on 11.2.0.2.
Kind regards,
Uwe
Eric,
thanks for the explanation about the (potentially) non-deterministic execution order. From this point of view I can understand the limitation, although I still find it quite uncomfortable to use the workaround that Eddie pointed me to.
On the other hand, if a step of my chain calls a program, maybe I just don't care about the execution order but I know that the arguments I need to pass to this program are the same at any point in time. That's exactly what happens when using the workaround with job metadata and a lookup table. From this point of view I cannot understand the limitation.
OK, there can be chain configurations where different steps could call the same program and then with different arguments -- but even that wouldn't be possible with this limitation in place. Now, with that woraround I'll have to care about another table, clean it up after job execution etc... not so good, don't you agree?
Enlighten me, please, should I have missed something.
Cheers,
Uwe
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Another possible workaround I thought about: play with the PAUSE attribute of the chain.
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