Tag: DBMS

  • Transaction Isolation Levels

    Transaction Isolation Levels

    A Transaction and ACID Properties A transaction is a unit of work. It bundles multiple steps into a single, all-or-nothing operation. In the context of DBMS, a transaction is composed of one or more SQL statements. There’re four desirable properties we want transactions to have, which are known as ACID properties; atomicity, consistency, isolation, and […]