Create an index on the last name column

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Reference no: EM133482362

Question 1. Use SQL Developer Explain Plan to analyze performance of a query to find all customers with the last name Gonzales.

Question 2. Create an index on the last name column. Explain what type of index you created and why. Assumption: this table is rarely updated. Your index need to support range access (e.g. customers whose last name starts with Joh). (2 points for the query, explanation
and results)

Question 3. Use SQL Developer Explain Plan to analyze performance of a query to find all customers with the last name Gonzales. (3 points for three paragraph report)

Reference no: EM133482362

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