Flight Records
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Write a query to create a new table, named flight routes, that displays unique pairs of two locations.
Example:
Note: Duplicate pairs from the flights table, such as Dallas to Seattle and Seattle to Dallas, should have one entry in the flight routes table.
flights table
| Column | Type |
|---|---|
id |
INTEGER |
source_location |
VARCHAR |
destination_location |
VARCHAR |
Output:
| Column | Type |
|---|---|
destination_one |
VARCHAR |
destination_two |
VARCHAR |
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