What are the best practices for index design in databases?
The best practices for index design include choosing the right columns to index, avoiding excessive indexing, and regularly monitoring index performance.
How do I decide which columns to index?
You should index columns that are frequently used in WHERE clauses, JOIN conditions, and ORDER BY clauses.
What are the downsides of having too many indexes?
Having too many indexes can slow down write operations, increase storage requirements, and complicate maintenance.
Can you explain the difference between clustered and non-clustered indexes?
A clustered index determines the physical order of data in a table, while a non-clustered index is a separate structure that points to the data.
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