1、连接数据库:db2 connect to appdb
2、查询当前用户模式:select current schema from sysibm.sysdummy1 或 select current schema from sysibm.dual
3、切换用户模式:set current schema toms
4、切换用户: db2 connect to appdbuser market using market
5、给其他用户授权:db2 grant dbadm on database to user market
6、查看当前用户的权限: db2 get authorizations
<!-----------db2查看当前用户的权限:http://blog.itpub.net/298599/viewspace-666757/