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MySQL CREATE INDEX

The CREATE INDEX statement is used to create an index on a table. Indexes improve the speed of data retrieval operations on a table at the cost of additional space and maintenance.

Example with Tamil Kings

CREATE INDEX idx_king_name ON tamil_kings_auto_increment(king_name);

Code Explanation: This command creates an index named idx_king_name on the king_name column of the tamil_kings_auto_increment table, improving the efficiency of queries on this column.

Best Practices

  • Use indexes on columns that are frequently used in WHERE clauses and joins.
  • Avoid creating too many indexes on a table, as they may slow down data modifications.

Key Takeaways

  • Indexes speed up data retrieval operations.
  • They should be used selectively to avoid performance issues with insertions and updates.
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