  In the decades, the general field of quantum computing has experienced
remarkable progress since its inception. A plethora of researchers not only
proposed quantum algorithms showing the power of quantum computing but also
constructed the prototype of quantum computers, making it walk into our
tangible reality. Those remarkable advancements in quantum computing have
opened doors for novel applications, one of which is quantum databases.
Researchers are trying to use a paradigm brought by quantum computing to
revolutionize various aspects of database management systems. In this paper, we
envision the synergy between quantum computing and databases with two
perspectives: Quantum computing-enabled technology, and quantum
computing-inspired technology. Based on this classification, we present a
detailed overview of the research attained in this area, aiming to show the
landscape of the field and draw a road map of future directions.
