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Oggi vediamo il seguente esercizio di LeetCode a tema SQL:

A country is big if:

• it has an area of at least 3,000,000 km², or
• it has a population of at least 25,000,000.

Write a SQL query to report …

Oggi vediamo il seguente esercizio di LeetCode a tema SQL:

Find the names of the customer that are either:

• referred by any customer with id != 2.
• not referred by any customer.

Return the result …

Oggi vediamo il seguente esercizio di LeetCode a tema SQL:

Write a solution to report the name and bonus amount of each employee who satisfies either of the following:

• The employee has a bonus less …