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I am working on a practice sheet and Ive come across 2 questions I cant seem to find the proper explanation for, some insight and pointers would be great. QUESTION 1: Describe why a clustering index might be used instead of a ordered key index? QUESTION 2: Describe why the query optimizer only looks at Left-Deep query trees instead of searching all bushy query trees.

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I am working on a practice sheet and Ive come across 2 questions I cant seem to find the proper explanation for, some insight and pointers would be great. QUESTION 1: Describe why a clustering index might be used instead of a ordered key index? QUESTION 2: Describe why the query optimizer only looks at Left-Deep query trees instead of searching all bushy query trees

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I am working on a practice sheet and Ive come across 2 questions I c.pdf

  • 1. I am working on a practice sheet and Ive come across 2 questions I cant seem to find the proper explanation for, some insight and pointers would be great. QUESTION 1: Describe why a clustering index might be used instead of a ordered key index? QUESTION 2: Describe why the query optimizer only looks at Left-Deep query trees instead of searching all bushy query trees