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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Mar 18, 2016 · First, the answer from mustaccio is correct. The column 'studentSemesterExcellent' in table 'student' is no key column.
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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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Jun 26, 2018 · The error is in the Items table. What could be the reason, how to fix it? CREATE TABLE Users ( userid NUMBER(6) NOT ...
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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 ...
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Nov 18, 2018 · You are trying to reference an ordinary column which has neither a primary key nor unique constraint on it , hence you are getting that error .
May 12, 2017 · Hi, i'm getting the error in the subject while trying to create the table with a foreign key constraint: CREATE TABLE Has (
Aug 11, 2021 · The error says that field is not unique, but it´s. The problem it´s that the migration don´t create the constraint in Oracle, only the unique ...
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