QUIET: Continuous Query-driven Index Tuning

Index tuning as part of database tuning is the task of selecting and creating indexes with the goal of reducing query processing times. However, in dynamic environments with various ad-hoc queries it is difficult to identify potential useful indexes in advance. In this demonstration, we present our tool QUIET addressing this problem. This tool “intercepts” queries and – based on a cost model as well as runtime statistics about profits of index configurations – decides about index creation automatically at runtime. In this way, index tuning is driven by queries without explicit actions of the database users.