Hi Vasu,
You can create an appropriate ad hoc query to specify parameters for Web target iViews.
In logical SAP R/3 Systems of Release 4.6B or higher, transaction SPO0 contains an Ad hoc Query tab. This uses the concept of InfoSets, which are usually based on table joins or logical databases, to create abstract definitions for fields that the system can read. You have to enter parameters for the individual fields. The ad hoc query delivers values that can be passed to the portal.
Transaction SPO0 also contains a buffer for ad hoc queries. This improves system performance by avoiding the need to put together the query every time it is used.
You can delete the contents of this buffer by choosing Delete Buffer for AdHoc Query on the start screen of transaction SPO0. This removes the index entry and the generated queries from the system.
Hope this will help you.
Kind regards,
Praveen