With SQL, how do you select all the columns from a table named "Persons"?

  1. SELECT [all] FROM Persons

  2. SELECT All Persons

  3. SELECT *.Persons

  4. SELECT * FROM Persons


Correct Option: D

AI Explanation

To select all the columns from a table named "Persons" in SQL, you would use the following syntax:

D. SELECT * FROM Persons

Option A) SELECT [all] FROM Persons - This option is incorrect because the correct syntax to select all columns is to use an asterisk (*) symbol.

Option B) SELECT All Persons - This option is incorrect because it doesn't follow the correct syntax. The keyword "All" should not be used to select all columns.

Option C) SELECT .Persons - This option is incorrect because the dot (.) operator is used to specify a column from a table, not to select all columns. The correct syntax to select all columns is to use an asterisk () symbol.

Option D) SELECT * FROM Persons - This option is correct because it uses the correct syntax to select all columns from the "Persons" table. The asterisk (*) symbol represents all columns in the table.

Therefore, the correct answer is D. SELECT * FROM Persons.

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