I have created a dbml, There are one Parent table(Table1) and multiple Child tables(Table2, Table3, etc.) in it. Table1 has Table1ID as primary key; all the child tables has Table1ID as foreign key. The database structure is something like below,
Table1 Table2 Table3 Table4
Table1ID Table2ID Table3ID Table4ID
... Table1ID Table1ID Table1ID
... ... ...
A complete Table2 record contains a record from Table1, Table2, Table3 and
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