Why does the table okcs_stg_questions only have content from the last 60 days?
The visible configuration item, OKCS_PURGE_DAYS, controls the purging of OKCS (Knowledge Advanced) tables. The table, "okcs_stg_question", is one of them. The minimum value is 7, the maximum value is 90. The default value is 60.
Path to setting(s): Select Configuration from the navigation area > Site Configuration > Configuration Settings > and search by Key.