Hi Mahesh,
it will work in st04 / SQL Command Editor because you work with SAP schema owner.
How do you connect via SQL*Plus ?
If you are not connected as SAP Schema owner you have to full qualify your select with something like this
select * from <Schema_owner>.<table_name>
And perhaps it will be helpfull to not select the whole table with
where rownum < 50
In my SQL Editor Limit of rows doesn't work correctly and in SQL*Plus there is no build-in Limit.
regards
Kay