postgresql transaction
BEGIN;
UPDATE accounts SET balance = balance - 100.00
WHERE name = 'Alice';
SAVEPOINT my_savepoint;
UPDATE accounts SET balance = balance + 100.00
WHERE name = 'Bob';
-- oops ... forget that and use Wally's account
ROLLBACK TO my_savepoint;
UPDATE accounts SET balance = balance + 100.00
WHERE name = 'Wally';
COMMIT;postgres transactionid
x=# SELECT wait_event_type, state, query
x-# FROM pg_stat_activity
x-# WHERE pid = 476513;
wait_event_type | state | query
-----------------+--------+--------------------------------------------------------------------
Lock | active | INSERT INTO association (id, device, campaign) VALUES ($1, $2, $3)
(1 row)Copyright © 2021 Codeinu
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