How can use multiple primary key in abap program?

In ABAP, you can define multiple primary keys in a database table by specifying them in the table definition using the Data Dictionary (SE11). You can then use these composite keys in your ABAP program by declaring the appropriate internal tables and work areas that match the key structure. When performing database operations, such as SELECT or DELETE, ensure to include all key fields in your queries to uniquely identify records. This approach helps maintain data integrity and allows for efficient data retrieval.