Database - Managing Databases with Oracle - Discussion

Discussion Forum : Managing Databases with Oracle - General Questions (Q.No. 5)
Which of the following is not true about indexes?
Indexes are created to enforce uniqueness on columns.
Indexes are created to enable fast retrieval by column values.
Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes.
Indexes are created with the ALTER TABLE command.
Answer: Option
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