If hcache is not built before running a report, what must happen?

When hcache is not built prior to running a report, the system needs to create hcache first. Hcache is a caching system used to improve the performance of data retrieval processes by storing frequently accessed information. If hcache has not been built or populated, the reporting system does not have a pre-existing cache of information to draw from, which means it must first compile the necessary data into the hcache before executing the report. This process enables quicker access to the data needed for the report, as it optimizes the performance by avoiding the need to query the underlying data sources each time the report is run.

Other processes like compiling SQL scripts, refreshing log data, or analyzing previous reports are operational activities that might occur in reporting systems, but they are not directly related to the initial requirement of establishing a functional hcache for reporting efficiency.