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Topk queries and skyline queries have well explored limitations which recentresearch have tried to complete through new techniques. In this survey, afterresuming such limitations, we consider Restricted Skyline Queries, ORD and ORUapproach, Krepresentative minimization queries, Skyline ordering queries, UTKqueries approach and Skyrank that aim to overcome them. After introducing andcomparing their main concepts, pros and cons, we briefly report the algorithmsand confront some of the experimental data collected from the bibliography. Toconclude the paper, we summarize the results presented with a short guide onhow to select the best approach according to specific needs.

Comparison of 6 different approaches to outclass Top-k queries and Skyline queries