Can a judge reverse or modify another judge's ruling?

Defendants rely upon People v. Quarterman (2012) 202 Cal.App.4th 1280, 1293, which states: " '[F]or reasons of comity and public policy . . . trial judges should decline to reverse or modify other trial judges' rulings unless there is a highly persuasive reason for doing so.' " "Encouraging parties to pursue their appellate remedies, instead of asking a different judge to rehear a matter that was decided adversely to them the first time, serves the purpose of preserving the integrity of the judicial system, and promotes respect for the judicial process." (Ibid.)