Column Aliases — Solution & ExplanationProblems / Column Aliases / EditorialApproachColumn aliases let you rename columns in the output without changing the underlying data.

SELECT item_name AS product renames the column in the result.

Repeat for each column that needs a friendlier name.

Aliases are especially useful when column names are technical or ambiguous, making reports more readable.Hints

Use AS after a column name to give it a new name in the output.

The alias only affects the result — it does not rename the actual table column.

In PySpark, use .alias() on a column to rename it.

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