select a.*,b.name as appname,
(case a.dbsrctype when 1 then
(select serverIp||':'||port||','||username||'/'||password||'@'||dbname from t_database d where d.id=a.id)
else
(select url from t_webservice w where w.id=a.id)
end) as vmark
from t_dbsrc a
left join t_appsys b
on
