Which of the following statements is not correct? a. Index creation can help improve the performance of
Question:
Which of the following statements is not correct?
a. Index creation can help improve the performance of join queries.
b. Indexing makes it harder to enforce uniqueness on a (combination of) column(s).
c. An index implies a logical ordering of the rows in a table.
d. An index can be used to create a physical ordering of rows.
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Related Book For
Principles Of Database Management The Practical Guide To Storing Managing And Analyzing Big And Small Data
ISBN: 9781107186125
1st Edition
Authors: Wilfried Lemahieu, Seppe Vanden Broucke, Bart Baesens
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