Unrecognized JDBC URL

BAO.SZ

hi, all:
i'm working in jdev 11.1.2.3

i have created a simple adf app(one table for the moment) which works well only after i ALTER TABLE to add some columns.
1.edit EO to add attribute from the newly altered table.
--it's ok.
2.edit the VO (or even delete the old VO to create a new one) based on the refreshed EO, to include new attributes.
--in the QUERY tab for the VO, when press TEST AND EXPLAIN button, an error occured like this:
"Error encountered:java.sql.SQLException: Unrecognized JDBC URL
subtype: null"
--but connection to the db in jdev is ok.
3. if i ignore these alert and go on ,and run the jspx agian. errors in log file like this:
JBO-27021: java.sql.SQLException, .....
...
Caused by: java.sql.SQLException: invalid index ...

Can anyone give helps?
Thanks.

Subramanian Meyyappan

hi user,

"add attribute from the newly altered table." instead of this you may try "synchnorizse the db changes" for eo. then continue.

BAO.SZ

I tried "synchnorizse the db changes" for EO, and related info:
i changed the data type id of the EO from varchar2 to DBSequence, and when sync the EO, restored to the string type.

but the problem remains.
any ideas?
Thanks.