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In how many parts events are classified Events are classified as four types in UML 1. Signals 2. Calls 3. Passing of Time 4. Change in State
What is the use of rename operation? Rename operation is used to rename both relations and an attributes. It uses the as clause, taking the form: Old-name as new-name.
What is database utility? Database utility is the interface among the ABAP/4 Dictionary and the underlying the SAP system.
Data Fragmentation "Fragmentation includes decomposing the data in relation to non-overlapping component relations". Why do we require fragmenting a relation?
what is query processing ,query optimization and performance turring?
what are the reasons having variable length records
Illustrate how you can use QBE to perform logical AND and OR operation
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
The following variant of the primary copy asynchronous-update replication protocol has been proposed for totally replicated systems. (a) A transaction executing at site A updat
Explain the Log Based Recovery Method? The system log that is generally written on stable storage consists of the redundant data required to recover from volatile storage failu
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