AS Operator

The AS operator is used to assign an alias to a table or column. Aliases make query results more readable and can simplify complex expressions.

Example: Using AS for Column Alias

SELECT Name AS 'Freedom Fighter', City AS 'Hometown'
FROM FreedomFighters;

Output:

Returns the names and cities with more descriptive column headers.

Do's and Don'ts

Do's

  • Use AS to make your query results easier to understand.
  • Use meaningful aliases that clarify the purpose of the column.

Don'ts

  • Don't use ambiguous or overly long aliases.
  • Don't rely on aliases in complex queries without proper documentation.