What disadvantages can be identified in index structures in databases?

Index structures in databases speed up data search and sorting, but they also have their disadvantages:

• Additional disk space: Indexes occupy extra space, which can be significant with large volumes of data.
• Slowing down write operations: When inserting, updating, or deleting data, indexes need to be updated, which increases the time taken for these operations.
• Complexity of choosing the right indexes: Incorrectly chosen indexes may not improve performance or may even degrade it.
• Support and management: Complex index structures require additional administration and monitoring.

For example, if you have a table with millions of records and create many indexes, inserting new data will be significantly slower due to the need to update all these indexes.