Database statistics, In an RDBMS, how are the three phases

Database statistics

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Question1. What is structured query language (SQL) performance tuning?

Question2. In an RDBMS, how are the three phases parsing, execution, and fetching-- carried out? In general, in which phase would you tune a database?

Question3. What are database statistics and why are they important?

Question4. What are the different types of database requests and transactions?

Question5. Discuss why is there a need for a two-phase commit protocol? What are their two phases?

Question6. What are decision support systems? What role do they play in a business environment?

Question7. What is a data warehouse and what are its main characteristics?

Reference no: EM1379508

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