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ISA hierarchy of tables inside a database and how to implement a single form

Updated 3 years ago by pligorHow-tos2 comments – viewed 8,441 times – ( +1 ) – version 1.1
Please consider the following Dear software engineers imagine I have a simple ISA hierarchy: parent A with children B and C. So let's say we have the corresponding tables named "a", "b", "c" and (created with the help of the gii model creator) the classes A, B, C The following is a screenshot from MySQL workbench: