Q: Explain data replication, forms of partitioning, and their areas of
Explain data replication, forms of partitioning, and their areas of application.
See AnswerQ: Interview a systems analyst or database analyst and ask questions about how
Interview a systems analyst or database analyst and ask questions about how that organization uses data modeling and design tools in the systems development process. Concentrate your questions on how...
See AnswerQ: Which index is most suitable for decision support and transaction processing applications
Which index is most suitable for decision support and transaction processing applications that involve online querying? Explain your answer.
See AnswerQ: Compare the features of the four families of file organization.
Compare the features of the four families of file organization.
See AnswerQ: Match the following terms to the appropriate definitions: - extent
Match the following terms to the appropriate definitions: - extent hashing algorithm - rollback - index - checkpoint facility - physical record - pointer - data type - physical file - database recove...
See AnswerQ: What is the purpose of the EXPLAIN or EXPLAIN PLAN command?
What is the purpose of the EXPLAIN or EXPLAIN PLAN command?
See AnswerQ: How is storage space in a database divided logically by the DBMS
How is storage space in a database divided logically by the DBMS? What is the role of a DBA in managing it?
See AnswerQ: State 10 rules of thumb for choosing indexes.
State 10 rules of thumb for choosing indexes.
See AnswerQ: Discuss the trade-off between improved performance for retrieval through use
Discuss the trade-off between improved performance for retrieval through use of indexes and degraded performance due to updates of indexed records in a file.
See AnswerQ: Explain why an index is useful only if there is sufficient variety
Explain why an index is useful only if there is sufficient variety in the values of an attribute.
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