The sample Job described in this scenario maps the data from two input tables,
PreferredSubject and CourseScore, to the
output table, TotalScoreOfPreferredSubject, using a
subquery.
Ensure that you have added an Oracle database connection in the Metadata > Db Connections section prior to creating the Job. For more information, see the
Centralizing database metadata section of the Talend Data Integration Studio User
Guide.
The Standard Job and the Prejob design
In this scenario, design the Standard Job such as the following:
Design the Prejob that includes the data in this scenario as follows:
The PreferredSubject table contains the student's
preferred subject data. To reproduce this scenario, you can load the following data to
the Oracle table from a CSV
file:
The CourseScore table contains the student's
subject score data. To reproduce this scenario, you can load the following data to the
Oracle table from a CSV
file:
