Introduction to Transaction Processing Concepts and Theory

A transaction is a logical unit of database processing that includes one or more database access operations (read, write, insert, delete, or update). It is a sequence of operations performed as a single logical unit of work that must either be completed ent...

A conflict schedule (more precisely, a schedule with conflicting operations) refers to a schedule in which two or more transactions contain conflicting operations. Two operations in a schedule are said to conflict if they satisfy all three of the following ...

A schedule (also called a history) is an ordering of the operations from a set of concurrent transactions, where the operations of each individual transaction appear in the same order as they do in that transaction. A schedule defines the interleaved execut...

A schedule (also called a history) is an ordering of the operations from a set of concurrent transactions, where the operations of each individual transaction appear in the same order as they do in that transaction. A schedule defines the sequence in which ...

A transaction is an executing program or process that includes one or more database accesses such as reading or updating of database records. It is an atomic unit of work that should either be completed in its entirety or not done at all. Example: A bank tr...

A serializable schedule is a concurrent schedule whose final result is exactly the same as the result produced by some serial schedule (where transactions execute one after another without interleaving). Serializability is the standard criterion used to ide...

Definition: A transaction is an executing program or process that includes one or more database access operations such as reading or updating of database records. Key Concepts: - Applications that manage transactions are generally called Online Transaction ...