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What is an entity relationship model? The entity relationship model is a set of basic objects known as entities and relationship between those objects. An entity is a thing or
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Properties of a Transaction A transaction has four main properties. These are: Atomicity Consistency Isolation or Independence Durability or Permanen
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Databases and data warehouses both are databases and both contains number of rows and columns of tables containing data. Data warehouse is really different from databases because d
What is difference between primary index and secondary index? Primary Index a) It is an ordered file whose records are of fixed length along with two fields. b) Only base
#explain five disadvantages of a dbms..
explain various steps uses in evaluation and maintenance of MIS.
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
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