Retrieving catalog information about indexes
The SYSIBM.SYSINDEXES table contains a row for every index, including indexes on catalog tables.
Procedure
Query the SYSIBM.SYSINDEXES table.
For example,
to retrieve a row about an index named XEMPL2:
SELECT *
FROM SYSIBM.SYSINDEXES
WHERE NAME = 'XEMPL2'
AND CREATOR = 'DSN8C10';
A table can have more than one index. To display information
about all the indexes of a table:
SELECT *
FROM SYSIBM.SYSINDEXES
WHERE TBNAME = 'EMP'
AND TBCREATOR = 'DSN8C10';