Have u asked about the remote db catalog information? If u need to have those details, u couldn't get it within the database. You can get those details using db2cfexp utility.
db2cfexp c:\filename.txt (on windows)
db2cfexp /home/db2inst1/filename.txt (on windows)
Execute the cmd based on ur environment & it'll be produced a file along with the catalog info.
If u need to have the column names of the table, u can get them in the syscat.columns table.