May 2018
Intermediate to advanced
576 pages
30h 25m
English
Often, we need to check which parameters have been changed, or whether our changes have taken effect correctly.
In the previous two recipes, we have seen that parameters can be changed in several ways, and with different scopes. You learned how to inspect the value of one parameter or get the full list of parameters.
In this recipe, we will show you how to use SQL capabilities to list only those parameters whose value in the current session differs from the system-wide default value.
This list is valuable for several reasons. First, it includes only a few of the 200-plus available parameters, so it is more immediate. Also, it is difficult to remember all our past actions, especially in the middle ...