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SQL Anywhere 12.0.0 » SQL Anywhere Server - SQL Usage » Querying and modifying data » Adding, changing, and deleting data » Data modification statements


Transactions and data modification

When you modify data, the rollback log stores a copy of the old and new state of each row affected by each data modification statement. This means that if you begin a transaction, realize you have made a mistake, and roll the transaction back, you restore the database to its previous condition. See Using transactions and isolation levels.