When should I use composite indexes in my database?
An example of an AI chatbot conversation about when to use composite indexes in databases.
When should I use composite indexes in my database?
Composite indexes are useful when you frequently query multiple columns together. They can significantly improve performance.
Can you give me an example of when to use them?
Sure! If you often search for records using both 'last_name' and 'first_name', a composite index on both columns would be beneficial.
Are there any downsides to using composite indexes?
Yes, they can increase the time it takes to write data, as the index needs to be updated. It's a trade-off.
How do I create a composite index in SQL?
You can create a composite index using the CREATE INDEX statement, specifying multiple columns. For example: CREATE INDEX idx_name ON table_name (column1, column2);.
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