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C20.0046: Database Management Systems Lecture #1 - page 16 / 40

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M.P. Johnson, DBMS, Stern/NYU, Sp2004

16

Big issue: Transaction processing

Grouping of several queries (or other database actions) into one transaction

ACID properties

Atomicity

all or nothing

Consistency

constraints on relationships

Isolation

concurrency control

Simulated solipsim

Durability

Crash recovery

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