How to specify index space when creating an index in db2?

When creating an index in DB2, you can specify the index space using the following syntax:

CREATE INDEX index_name
ON table_name (column_name)
IN tablespace_name;

In the grammar above, index_name refers to the name of the index to be created, table_name refers to the name of the table on which the index is to be created, column_name refers to the name of the column to be included in the index, and tablespace_name refers to the name of the index space allocated for the index.

When creating an index, you have the option to assign it to a specific index space or use the default index space. If no index space is specified, DB2 will use the default index space.

For example, the following demonstrates how to create an index in DB2 named idx_customer, which includes the column customer_id from the table customer, and assigns the index to an index space named idx_space.

CREATE INDEX idx_customer
ON customer (customer_id)
IN idx_space;

To use the default index space, the IN keyword can be omitted, as shown below:

CREATE INDEX idx_customer
ON customer (customer_id);

Please note that in order to carry out the above operation, you need to have sufficient permissions to create indexes and index spaces in the DB2 database.