What are the disadvantages of indexes?

Disadvantages of indexes in databases:

• Storage costs: Indexes occupy additional space on disk, especially if there are many or they are complex.
• Slowing down write operations: When inserting, updating, or deleting data, indexes need to be updated, which increases the time taken for these operations.
• Redundancy: An excessive number of indexes can lead to decreased performance and increased maintenance complexity.
• Inefficiency when used improperly: If an index does not match the queries, it may not provide a performance boost or may even slow down execution.

Therefore, it is important to carefully choose which fields to index, considering the nature of queries and the load on the database.