This course explains the concepts and definitions of databases, starting from the components that make up a database, architecture and database design using a relational model approach (entity relationship diagram). Apart from that, the concept of mapping between the conceptual model and the physical database model is discussed. Next, the concept of database normalization is introduced as part of the database design quality testing method. After that, we studied the concept of database processing using a relational algebra notation approach which was strengthened by an introduction to the concept and implementation of the use of query language (SQL) through DDL and DML.