Dirty Reads (CloudMonk.io)

Dirty Reads



Dirty reads are a phenomenon in database systems where a transaction reads data that has been modified by another transaction but has not yet been committed. In other words, a transaction reads uncommitted data from another transaction, which may later be rolled back. This can lead to inconsistent or incorrect results if the modifying transaction is ultimately aborted, resulting in data that was never meant to be committed being visible to other transactions. Dirty reads violate the isolation property of transactions and can lead to data inconsistency and integrity issues. To prevent dirty reads, database systems typically implement isolation levels, such as Read Committed or Serializable, which control the visibility of uncommitted data to transactions. [https://en.wikipedia.org/wiki/Isolation_(database_systems)#Dirty_read]