Dec 4, 2021 · As a frame challenge. Can anyone help me resolve it? Yes, do not violate Third Normal Form and do not duplicate data by storing ...
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People also ask
How to fix ora 02270 no matching unique or primary key for this column list?
How to use primary key and unique key in SQL?
Is a column or combination of columns whose values match a primary key in a different table?
Which key should be unique and not contain any nulls?
Mar 18, 2016 · First, the answer from mustaccio is correct. The column 'studentSemesterExcellent' in table 'student' is no key column.
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Jun 26, 2018 · Remember that primary key of the Menus table is menuid + user_id. Thus, you can not reference only menuid. The solution is: Replace:
Feb 27, 2016 · The error has occurred because you are referencing a column in another table which is not unique. The good answers are already given by ...
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Nov 19, 2023 · Oracle error ORA-02270 occurs when trying to create or alter a table and the column-list specifies a foreign key, but there is no matching ...
Mar 28, 2022 · I got this error in my code, I know the error is coming from line 14-16 in the 4th picture cause I have the flight_details table with a pair ...
Jan 23, 2021 · Select 'edit column'; Select 'Add foreign key relation'; Select the table and column to make a foreign key for; Click save. Expected behavior.
Nov 28, 2020 · In what scenario / example would I choose a composite primary key over having a single primary key? Some post says that we no longer use ...
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