What does "serializability" in the context of database transactions refer to?Executing transactions sequentially, one after the otherEnsuring that the final result of concurrent transaction execution is equivalent to some serial executionAllowing transactions to be executed concurrently without any restrictionsPerforming transactions in a non-sequential order for improved performance

ERIALIZABILITY IN DBMS Some non-serial schedules may lead to inconsistency of the database. Serializability is a concept that helps to identify which non-serial schedules are correct andwill maintain the consistency of the database

What are the types of serializability?Transaction serializabilityConceptual serializabilityView serializability

What are the conditions for serializability?

n the context of database schedules, what is a "serial schedule"?A schedule where transactions are executed concurrentlyA schedule where transactions are executed sequentially, one after the otherA schedule that allows transactions to roll back their changesA schedule that includes both read and write operations

Atomicity. A transaction is an atomic unit of processing; it should either beperformed in its entirety or not performed at all.■ Consistency preservation. A transaction should be consistency preserving,meaning that if it is completely executed from beginning to end withoutinterference from other transactions, it should take the database from oneconsistent state to another.■ Isolation. A transaction should appear as though it is being executed in iso-lation from other transactions, even though many transactions are executing7Undo and redo are discussed more fully in Chapter 23.21.4 Characterizing Schedules Based on Recoverability 755concurrently. That is, the execution of a transaction should not be interferedwith by any other transactions executing concurrently.■ Durability or permanency. The changes applied to the database by a com-mitted transaction must persist in the database. These changes must not belost because of any failure.