What is the difference between composite and single-column indexes?
An example of an AI chatbot conversation about the differences in database indexing types.
What is the difference between composite and single-column indexes?
Single-column indexes are created on one column, while composite indexes are on multiple columns. This affects query performance.
Can you give an example of when to use a composite index?
Sure! Use a composite index when you frequently query using multiple columns together, like filtering by both 'last_name' and 'first_name'.
Are there any downsides to using composite indexes?
Yes, composite indexes can take up more space and may slow down write operations since they need to be updated more frequently.
How do I create a composite index in SQL?
You can create a composite index in SQL using the syntax: CREATE INDEX index_name ON table_name (column1, column2);.
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