What factors should you consider when deciding whether to create an index on a specific column?
- Data type of the column, table size, and index storage requirements.
- Date of the last index rebuild, fragmentation level, and page density.
- Disk space availability, database backup frequency, and server hardware configuration.
- Selectivity of the column values, frequency of data modification, and query performance improvement.
When deciding to create an index, considerations such as the selectivity of column values (how unique they are), the frequency of data modification in that column, and the potential performance improvement in query execution are paramount. These factors help optimize database performance and resource utilization.
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