yeah ur right devsuite 10g R1.
i tried to connect SQL but did not connect,also i tried to connect by using devsuite but unfortunatly did not work
as well as i tried to connect by using toad.
same error is showing.
SQL you mean for developer or for database. Ir it is for database. Then there is problem in your database. Might be did not install properly. Or some files are corrupted.
Once you will be able to connect your database itself then through form it will be problem. And the error you are talking about it seems from database.
i am able to connect to database by using windows xp but when i try to connect by using windows 7 then it shows the following error.
ORA-02248: invalid option for ALTER SESSION.
i read somewhere that if u change the NLS_LANGUAGE then it will work.
but i also Modified the NLS_Lang but unfortunatly getting the same error.