Sep 7, 2020 · Note:Clarification required from OP. The problem you are facing is because of the restriction on foreign key aka referential integrity ,.

Jul 4, 2021 · The error is pretty clear. Your foreign key references should be to the primary key in each of the referenced tables. What do you not understand ...

Sep 19, 2019 · just three question : 1) Do you have a table called job ? 2) Do you have a column called job_code within job table ? 3) Does that column has a ...

Apr 17, 2020 · I am learning how to create a small and simple database for class with Primary Key and Foreign Key restraints. I am getting ORA-02770 when ...

ORACLE SQL Error - ORA-02270: no matching unique or primary key for this column-list [duplicate]. That is my code below for creating a table in SQL however I ...

That is my code below for creating a table in SQL however I get an error " ORA-02270: no matching unique or primary key for this column-list " Can someone help?

Jan 2, 2014 · The first 3 tables are created without a problem, but the last one give me the error "ORA-02270: no matching unique or primary key for this ...

Apr 27, 2020 · Your foreign keys are all mixed up, resulting in syntacically invalid relations. I understand the relationships as follows:.