Explanatory Question
When should indexes be avoided?
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Although indexes are intended to enhance a database's performance, there are times when they should be avoided.
The following guidelines indicate when the use of an index should be reconsidered.
Indexes should not be used on small tables.
Tables that have frequent, large batch updates or insert operations.
Indexes should not be used on columns that contain a high number of NULL values.
Columns that are frequently manipulated should not be indexed.
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