Data management is a highly innovative field of CS, which evolved from the original field databases in the last years. With the ongoing developments, several topics from this field, such as cloud computing, large data collections or data analyses, pervade our daily lives. Although more and more students and teachers come in contact with data management topics and need to develop competencies in this field, current CS education typically does not sufficiently address them. Yet, both students and teachers already have experience with certain aspects of data management and may have built up knowledge and perceptions, which need to be considered in CS teaching. Hence, in a qualitative study, we investigated the attitudes and prior knowledge of teachers on several data management topics and explored students’ knowledge in this field.