Data maintenance is one of the many responsibilities of a Data Engineer. In many cases, tasks related to this are fairly routine. Describe a time when you encountered a data maintenance problem that required you to deviate from your "routine".

"As routine as data maintenance may become, it's alway important to keep a close eye on all the tasks involved, including ensuring that scripts are executing successfully. One of the data maintenance tasks involved conducting an integrity check. This allowed us to ensure our systems were not corrupted. After conducting this check, I was able to locate a corrupt index that may have caused larger issues in the future. Because of this discovery, I decided to implement an additional maintenance task as a extra safety precaution to help prevent corrupt indexes from being added to our databases."