"数据库概论" can be translated into English as "Introduction to Databases" or "An Introduction to Database Systems".
The first option, "Introduction to Databases," is more concise and commonly used, especially in educational contexts where the focus is on providing a foundational understanding of databases. The second option, "An Introduction to Database Systems," offers a slightly more comprehensive perspective by explicitly mentioning "systems," which may be appropriate if the course delves deeper into the architecture and implementation aspects of databases. However, in most cases, "Introduction to Databases" is sufficient and widely recognized.