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The development of the conceptual schema and/or the logical model and/or the physical settings of a database.
2
votes
Which design to choose
I have read your question, but not your proposed solutions, so I can't be influeced.
So, my ideas is that you can do a table STUDENTS and another table, let's say STUDENT_TYPE.
In STUDENTS, you put …
1
vote
Make a relation of a table with three different category of id's table
If I have understood what you need is:
TASK TABLE: ID, NAME, DESCR and other attributes
ROUTING TABLE: *ID, IDTASK, INFO and other attributes**
ANALYSER TABLE: ID, IDROUTING and other attributes
S …