List webi reports based on BEx queries

Hi Experts,

Can anyone please let me know how to list all the webi reports that are present in repository and are based on BEx
queries.

I tried following set of queries but they need to be integrated as one.
1. List the OLAP connections:
SELECT SI_ID, SI_NAME, SI_DOCUMENT FROM CI_APPOBJECTS WHERE SI_KIND = 'CommonConnection'

2. List the
reports based on above results:
SELECT SI_ID, SI_NAME, SI_DOCUMENT FROM CI_INFOOBJECTS WHERE SI_ID in (2877923,1501440,1980383,1717841)

I tried combining both queries like below but it errored out:
SELECT SI_NAME FROM CI_INFOOBJECTS WHERE SI_ID IN (SELECT SI_DOCUMENT FROM CI_APPOBJECTS WHERE SI_KIND = 'CommonConnection')

Please let me know how to combine these queries in BI 4.0. Thanks in advance

Regards,

Ankit