Rolling back a transaction

In a transaction, all modifications can be rolled back if needed.

To roll back modifications in a transaction, use the following:

GQL:
ROLLBACK

This query undoes all modifications and terminates the transaction.

Here is a complete example of rolling back a transaction:

1. Start a transaction:

   GQL:
   START TRANSACTION
   

The query initiates a transaction.

2. Modify the data:

   GQL2:
   MATCH (n) FILTER n.name = "GQL"
   SET n.year = 2025
   

This query finds a node named GQL and sets its year property to 2025.

3. Roll back the transaction:

   GQL3:
   ROLLBACK
   

This query rolls back all modifications, reverting the year property of the GQL node to its previous value.

The transaction is terminated upon rollback.