tree的tip:WHEN-TREE-NODE-SELECTED两次激活
WHEN-TREE-NODE-SELECTED在节点被选择和取消选择都会触发,如果只想触发一次可以使用下面的判断:IF :SYSTEM.TRIGGER_NODE_SELECTED = 'TRUE' THEN...
显示不符合KEY的记录
select * from mytable where rowid not in(select max(rowid) from mytable group by key)
注册时间:2007-12-10