Question

If introduced as follows, the subquery can return which of the values listed below?

WHERE InvoiceTotal > ALL (subquery)
a) a subquery can't be introduced in this way
b) a single value
c) a column of one or more rows
d) a table

Answer 1

The subquery introduced in the given syntax can return a single value or a column with one or more rows, but not a table.

Step-by-step explanation:

The subquery introduced in the given syntax can return a single value or multiple values in the form of a column with one or more rows. it cannot return a table.

For example, if the subquery is written to find the maximum InvoiceTotal among all the records in a table, it will return a single value as the result.

On the other hand, if the subquery is used to retrieve a list of InvoiceTotal values for a specific condition, it will return a column with multiple rows.