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What is transaction?
Transaction is a unit of program implementation that accesses and possibly updated several data items.
Relationship between Security and Integrity: Database security usually refers to access, while database integrity refers to avoidance of accidental loss of consistency. But usually
Types of Data fragmentation
WHAT IS DBMS
Problem : (b) A deductive database system is essentially the outcome of applying mathematics logic to database management, where logic is used for both data representation and
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
What is E-R model? This data model is based on real world that having of basic objects called entities and of relationship between these objects. Entities are explained in a da
Implementing software control To implement software control designer must redesign strategy of state event model which is present in dynamic model. There are three basic ap
what characterizes the levels in RAID technology
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
what is union compatable?
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