ComenzarEmpieza gratis

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 ejercicio forma parte del curso

Transactions and Error Handling in SQL Server

Ver curso

Instrucciones del ejercicio

  • Change your script to avoid being blocked.

Ejercicio interactivo práctico

Prueba este ejercicio y completa el código de muestra.

SELECT *
	-- Avoid being blocked
	FROM transactions ___ (___LOCK)
WHERE account_id = 1
Editar y ejecutar código