1、連接數據庫：db2 connect to appdb
2、查詢當前用戶模式：select current schema from sysibm.sysdummy1 或 select current schema from sysibm.dual
3、切換用戶模式：set current schema toms
4、切換用戶： db2 connect to appdbuser market using market
5、給其他用戶授權：db2 grant dbadm on database to user market
6、查看當前用戶的權限： db2 get authorizations
<!-----------db2查看當前用戶的權限：http://blog.itpub.net/298599/viewspace-666757/