How to create and utilize indexes in DB2?

In DB2, you can create and use indexes using the following SQL statement.

1. Create an index.

CREATE INDEX index_name
ON table_name (column1, column2, ...);

This will create a new index on the specified table, allowing you to designate one or more columns as the indexed fields.

1. Remove index.

DROP INDEX index_name;

This will remove the specified index from the database.

1. Utilize an index:

SELECT column1, column2
FROM table_name
WHERE indexed_column = value;

Using indexes in a query can speed up data retrieval. Filtering with indexed fields in the WHERE clause ensures that the database engine uses the indexes to locate the data.