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Each statement within SurrealDB is run within its own transaction. If a set of changes need to be made together, then groups of statements can be run together as a single transaction, either succeeding as a whole, or failing without leaving any residual data modifications.
CANCEL TRANSACTION statement can be used to cancel a set of statements within a transaction, reverting or rolling back any data modification made within the transaction as a whole.
CANCEL [ TRANSACTION ];
The following query shows example usage of this statement.
BEGIN TRANSACTION; -- Setup accounts CREATE account:one SET balance = 135,605.16; CREATE account:two SET balance = 91,031.31; -- Move money UPDATE account:one SET balance += 300.00; UPDATE account:two SET balance -= 300.00; -- Rollback all changes CANCEL TRANSACTION;