mirror of
https://github.com/MartinThoma/LaTeX-examples.git
synced 2025-04-25 14:28:05 +02:00
11 lines
209 B
SQL
11 lines
209 B
SQL
CREATE VIEW FriendshipSymmetric AS (
|
|
(
|
|
SELECT person1, person2
|
|
FROM Friendship
|
|
)
|
|
UNION
|
|
(
|
|
SELECT person2 AS person1, person1 AS person2
|
|
FROM Friendship
|
|
)
|
|
)
|