A foreign key must point to a column (or tuple of columns) that are a key, i.e. either declared a primary key or at least unique.
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Apr 10, 2016 · *Cause: A REFERENCES clause in a CREATE/ALTER TABLE statement gives a column-list for which there is no matching unique or primary key ...
Missing: 62850248/ fks
Dec 4, 2021 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. ... Later, using ALTER command I tried to add FK ... PRIMARY KEY, ...
Missing: 62850248/ fks
Apr 17, 2020 · I am getting ORA-02770 when attempting to run my ALTER TABLE statement, which as I understand is notifying me that the column I am referencing ...
Missing: 62850248/ fks
Dec 5, 2019 · The error message is clear enough. For each foreign key defined in your table, the referenced table column needs to be unique or primary key ...
Missing: 62850248/ fks
May 29, 2012 · The ORA-2270 error is a straightforward logical error: it happens when the columns we list in the foreign key do not match a primary key or ...
Missing: 62850248/ fks
Nov 7, 2022 · Is trying to refer to a unique constraint that is solely on the date_reserved column and that does not exist so the SQL engine (correctly) ...
Missing: 62850248/ fks
Mar 23, 2015 · A FOREIGN KEY in one table points to a PRIMARY KEY in another table. Brand is not a primary key in your CELLPHONE table. You could create a ...
Missing: 62850248/ fks
Nov 14, 2015 · I have created PERSON table in Oracle by this SQL syntax: Create table person ( p_id int not null, personName char(5) ...
Missing: 62850248/ fks
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