[trouble on Updateing Oracle table]

hello,

I am developping a C#. application which uses Oracle 9i,

I get ORA-00001(unique constraint) Error on executing the sql below;

I know sql below is little strange( which use unique key in 'SET' statement) .

but It worked on My Oracle Server. but it didn't on Client's.

does anybody know why this error occurs or why this error did not occur on my PC,

thanks,

[update sql](key is CD and SDATE)

Update TBL1

set CD = 'A',

NAME = '1',

SDATE=TO_DATE('2008-10-31 00:00', 'YYYY-MM-DD HH24:MI' )

WHERE

CD = 'A'

and SDATE=TO_DATE('2008-10-31 00:00', 'YYYY-MM-DD HH24:MI' )

[table definition]

CREATE TABLE TBL1

(

CD VARCHAR2(8),

NAME VARCHAR2(30),

SDATE DATE,

DATATEXT VARCHAR2(100)

)

[unique constraint]

CREATE UNIQUE INDEX TBL1_KEY1

ON TBL1

(CD, SDATE)

PCTFREE 10

INITRANS 2

MAXTRANS 255

TABLESPACE INDEX_SPACE

STORAGE(INITIAL 500K NEXT 500K MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)

LOGGING

[C#(.net) why foucs doesn't stay on Panel]

hello friends,

I'm developping windows application on C#,

I put hSclollbar and vScrollbar into Windows.Panel.

I run the application, and pressed left cursor key upon the panel.

then hScrollbar gets focus even if it was not focused before(focus was on panel).

I don't want scrollbar focused on, but the panel;

does anybody know how to keep focus on Windows.Panel when cursor key pressed?