Summary
In this chapter, we have seen:
What are the steps involved in creating a chain
How to define a chain
How to define the steps of a chain
How to use rules to make the steps run when we want them to run
How to use programs in a chain
What are the programs that need to be enabled before we can use them in a chain
Why we shouldn't forget the error situations in rules
How to manipulate a running chain
How to force the Scheduler to evaluate the chain rules for a particular chain
How to use the
analyze_chain
procedureHow to use DB Console to create a chain
How to grant privileges to be able to create a chain
How using a chain does not guarantee a correctly functioning system
In the next chapter, we will see how to find out what happens in the Scheduler, and how we can keep the database happily running the Scheduler.