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Creative Writing
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English (U.S.)
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Evaluating the Usage of Index in Database

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Indexes (SQL) should be put in place to help our queries, no? If they don't help, they are either doing nothing (and taking up space) or causing problems. When considering the question on how to make sure indexes are optimal, consider also how we can determine their usefulness. What might you do in order to determine if an index is providing a benefit?
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Week 4 Discussion 2: Making Sure Our Indexes Help
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Week 4 Discussion 2: Making Sure Our Indexes Help
An index refers to an on-disk structure linked with a view that facilitates faster retrieval of data from the view. It holds keys created from one or several columns in the view and stored in a B-tree structure to allow SQL servers to locate the row or rows related to the critical values promptly and efficiently. Indexes are pointers to data in a database and should therefore be placed to help our queries. However, to better assist in finding required data from a large pool of information, indexes must be optimized. For improved performance tuning of SQL server index, one should first understand the effect of data...
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