Don't be too busy, cherish the true love right now (Ma Xiaojing sorry~)
Table test
---------------
id | i_order
---------------
1 | 22
2 | 23
---------------
The converted result is:
---------------
id | i_order
---------------
1 | 23
2 | 22
---------------
The Oracle and SQLServer data statements are the same, the statements are as follows:
UPDATE test
SET i_order = (CASE
WHEN id = 1 THEN
(SELECT i_order FROM test WHERE id = 2)
WHEN id = 2 THEN
(SELECT i_order FROM test WHERE id = 1)
END)
WHERE id=1 OR id=2;