Pentaho DI - JSON Nested File Output
问题 I have a requirement where I need to fetch records from multiple tables. The primary table is having one-to-many relationship to other tables. My data source is Oracle DB. Oracle db is having the specified tables. One called Student other one is Subjects. For sample, I have a Student Table where "Student_Id" is the Primary Key and other columns like firstname, lastName etc. Each student have registered for multiple subjects so we have student_id is the foreign key to the Subjects table.