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Explain the role of generated columns in data processing and provide an example of how you would use a generated column to enhance data analysis in a Delta Lake table.
A
Generated columns are used to store static data that does not change, enhancing data consistency.
B
Generated columns are created by defining a rule or expression that generates the column's values based on other columns, enhancing data analysis by providing computed fields.
C
Generated columns are automatically populated by the system based on the data type of existing columns.
D
Generated columns are used to encrypt data in Delta Lake tables, ensuring data security.
