Question

A user can indicate that all columns of a table should be displayed in the results of a select statement by including an asterisk (*) In the select clause.

A) True
B) False

Answer 1

In SQL, an asterisk (*) in the select clause indicates that all columns of a table should be displayed, which makes the statement true.

Step-by-step explanation:

A user can indicate that all columns of a table should be displayed in the results of a select statement by including an asterisk (*) in the select clause. The correct answer to this question is A) True. When using SQL (Structured Query Language), the asterisk symbol (*) is a wildcard character that represents all columns in a table. To retrieve all columns from a table without specifying each column name individually, you can use a query such as SELECT * FROM table_name; This command is very useful for obtaining a quick overview of all the data within a table, but it's generally recommended to specify only the columns you need in order to optimize performance and avoid retrieving unnecessary data.