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List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Preliminary entities and attributes of human resourse management database management system
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
A database for the Service and Maintenance (SM) section of a Computer sales and service Company has to be developed. SM gives after sales service to customers. SM branch has a numb
Sequences Sequences: Automatically produce unique numbers Are sharable Are typically used to make a primary key value Replace application code Speed up t
explain at least five widly used case tools
A distributed database is defined as "a collection of multiple logically interrelated database which are physically distributed over a computer network" (a) Give any three advan
Drawbacks of Data Distribution: The primary drawbacks of distributed database systems are the added complexity needed to ensure proper coordination between the sites. This increas
Dependency Preservation It is obvious that the decomposition must be lossless so that we do not lose any information from the relation that is decomposed. Dependency preservati
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