ORA-43913
        unable to derive collation for the result: conflicting collations
        
        
        Cause
        Arguments to the operator or function (operation) that have the lowest coercibility level and are relevant for derivation of the collation for the result of this operation had conflicting collations.
        Action
        Check the collation derivation rules in the Oracle Database documentation and apply the COLLATE operator as appropriate to remove the existing conflict.
        
     
    
    
        ORA-43913
        unable to derive collation for the result: conflicting collations
        
        
        Cause
        Arguments to the operator or function (operation) that have the lowest coercibility level and are relevant for derivation of the collation for the result of this operation had conflicting collations.
        Action
        Check the collation derivation rules in the Oracle Database documentation and apply the COLLATE operator as appropriate to remove the existing conflict.
        
     
    
    
        ORA-43913
        unable to derive collation for the result: conflicting collations
        
        
        Cause
        Arguments to the operator or function (operation) that have the lowest coercibility level and are relevant for derivation of the collation for the result of this operation had conflicting collations.
        Action
        Check the collation derivation rules in the Oracle Database documentation and apply the COLLATE operator as appropriate to remove the existing conflict.