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DuplicateColumnNameError

Bases: ValueError

Exception raised for trying to modify a table resulting in a duplicate column name.

Parameters:

Name Type Description Default
column_name str

The name of the column that resulted in a duplicate.

 required
Source code in src/safeds/exceptions/_data.py 
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class DuplicateColumnNameError(ValueError):
    """
    Exception raised for trying to modify a table resulting in a duplicate column name.

    Parameters
    ----------
    column_name:
        The name of the column that resulted in a duplicate.
    """

    def __init__(self, column_name: str):
        super().__init__(f"Column '{column_name}' already exists.")