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Construction and Application of Database Micro-course Knowledge Graph Based on Neo4j

Due to the sudden outbreak of COVID-19, Micro-lecture, as an important learning resource, can provide important support for enriching online teaching content and form under the realistic background of "keeping students learning during schools disruption". However, there are many problems in the construction of micro-lectures, such as the lack of systematicness and organization due to the multiplicity of knowledge points. Based on the database course, this paper builds the knowledge graph of database micro-lectures based on Neo4j, develops the knowledge graph system of the course to visualize the knowledge vividly, and designs different system functions according to different roles. The system not only supports students' online learning, but also provides knowledge graph management functions for teachers, which greatly meets users' needs.