Avoid being blocked
You are trying to select every movement of account 1 from the transactions table. When selecting that information, you are blocked by another transaction, and the result doesn't output. Your database is configured under the READ COMMITTED isolation level.
Can you change your select query to get the information right now without changing the isolation level? In doing this you can read the uncommitted data from the transactions table.
Este exercício faz parte do curso
Transactions and Error Handling in SQL Server
Instruções do exercício
- Change your script to avoid being blocked.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
SELECT *
-- Avoid being blocked
FROM transactions ___ (___LOCK)
WHERE account_id = 1