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Oracle Error Message ORA-02275: such a referential constraint already exists in the table Reason for the Error Self-evident. Solution Remove...
Oracle Error Message ORA-02274: duplicate referential constraint specifications Reason for the Error Self-evident. Solution Remove the duplicate specification.
Oracle Error Message ORA-02273: this unique/primary key is referenced by some foreign keys Reason for the Error Self-evident. Solution Remove...
Oracle Error Message ORA-02272: constrained column cannot be of LONG datatype Reason for the Error Self-evident. Solution Change the datatype...
Oracle Error Message ORA-02271: table does not have such constraint Reason for the Error Self-evident. Solution Make sure the specified...
Oracle Error Message ORA-02270: no matching unique or primary key for this column-list Reason for the Error A REFERENCES clause...
Oracle Error Message ORA-02269: key column cannot be of LONG datatype Reason for the Error Self-evident. Solution Change the datatype...
Oracle Error Message ORA-02268: referenced table does not have a primary key Reason for the Error The referenced table does...
Oracle Error Message ORA-02267: column type incompatible with referenced column type Reason for the Error The datatype of the referencing...
Oracle Error Message ORA-02266: unique/primary keys in table referenced by enabled foreign keys Reason for the Error An attempt was...
Oracle Error Message ORA-02265: cannot derive the datatype of the referencing column Reason for the Error The datatype of the...
Oracle Error Message ORA-02264: name already used by an existing constraint Reason for the Error The specified constraint name has...
Oracle Error Message ORA-02263: need to specify the datatype for this column Reason for the Error The required datatype for...
Oracle Error Message ORA-02262: ORA-string occurs while type-checking column default value expression Reason for the Error New column datatype causes...
Oracle Error Message ORA-02261: such unique or primary key already exists in the table Reason for the Error Self-evident. Solution...
Oracle Error Message ORA-02260: table can have only one primary key Reason for the Error Self-evident. Solution Remove the extra...
Oracle Error Message ORA-02259: duplicate UNIQUE/PRIMARY KEY specifications Reason for the Error Self-evident. Solution Remove the duplicate specification.
Oracle Error Message ORA-02258: duplicate or conflicting NULL and/or NOT NULL specifications Reason for the Error Self-evident. Solution Remove the...
Oracle Error Message ORA-02257: maximum number of columns exceeded Reason for the Error The number of columns in the key...
Oracle Error Message ORA-02256: number of referencing columns must match referenced columns Reason for the Error The number of columns...

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