What is the maximum number of indexes that can be created on a single table in a database?

The maximum number of indexes on a single table depends on the specific database management system (DBMS). For example:

• In MySQL (InnoDB), the limit on the number of indexes is about 64 per table.
• In PostgreSQL, there are virtually no restrictions on the number of indexes, but a large number can negatively impact performance.
• In Oracle, the maximum number of indexes per table is 1000.

It is important to remember that too many indexes can slow down insert, update, and delete operations, so indexes should be created thoughtfully based on performance requirements.