Can I update 2(or multiple) columns in a table based on one of update col?

Hi All,
I have a table emp:
empno number
,salary number
,comm number
Now, the comm column is always a % of the salary column (but still would like to store the comm in the table as a column).
Assuming that someone get a salary increment and I need to update the commission as well based on the new salary value, should I still use 2 update statements or is there anyway, I can achive in a single update clause itself?
example:
if the old values were:
=============
1234 10000 1000
and if I do the following,
update emp
set salary = salary + 3000
,comm = salary * 10/100
where empno = 1234;
the comm value still points to the old salary value and the table looks like:
emp:
===
1234 13000 1000
instead of:
1234 13000 1300 (10% of the new salary - 13000)
so, the only way to achieve this is to issue 2 update statements? Or is there any way of achieving in one single update statement? Please let me know.
Am on Oracle 10.2.0.3.0.
Thanks,
Srini.

Or you could create a after update trigger on salary column that updates comm whenever Sal updates.
What happens if someone else issues an update on salary and forgets to update the commission? Wont you have incorect data then?
Also, commision is a redundant column . I dont think it is a good idea to have computed values as a separate column.
Thanks,
Rajesh,

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Hi,
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DECLARE
v_mydept1 TEST1.DEPT_CD%TYPE;
v_mydept2 TEST2.DEPT_CD%TYPE;
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Can anyone help me on this ?

oops my mistake.....typo mistake...it should have been as follows --
UPDATE TEST1 SET DEPT_DSCR = 'PLSQL1' WHERE CURRENT OF C1;
UPDATE TEST2 SET DEPT_DSCR = 'PLSQL2' WHERE CURRENT OF C1;
Now here is the upated PL/SQL code where we are trying to update columns of different tables --
DECLARE
v_mydept1 TEST1.DEPT_CD%TYPE;
v_mydept2 TEST2.DEPT_CD%TYPE;
CURSOR C1 IS SELECT TEST1.DEPT_CD,TEST2.DEPT_CD FROM TEST1,TEST2 WHERE TEST1.DEPT_CD = TEST2.DEPT_CD AND TEST1.DEPT_CD = 'AA' FOR UPDATE OF TEST1.DEPT_DSCR,TEST2.DEPT_DSCR;
BEGIN
OPEN C1;
LOOP
FETCH C1 INTO v_mydept1,v_mydept2;
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UPDATE TEST2 SET DEPT_DSCR = 'PLSQL2' WHERE CURRENT OF C1;
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COMMIT;
END;
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2 /
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       101 18/03/2011         355
       102 15/04/2011         488
       103 20/05/2011         178
       102 14/06/2011         269
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2 /
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       102        648
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3                                            select max(payment_date),
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5                                              from table1
6                                              where table1.serial_no = table2.serial_no
7                                           )
8 /
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2 /
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Hi Lippix.
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Command> host ttversion
TimesTen Release 11.2.2.2.0 (64 bit Linux/x86_64) (tt1122:53396) 2011-12-23T09:26:28Z
Instance admin: tttest
Instance home directory: /timesten/TimesTen/tt1122
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SYS26 TT_BIGINT NOT NULL
*TBLNAME TT_CHAR (31) NOT NULL
*TBLOWNER TT_CHAR (31) NOT NULL
SYS2 TT_SMALLINT NOT NULL
SYS18 TT_BIGINT NOT NULL
SYS1 TT_BIGINT NOT NULL
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SYS3 TT_INTEGER NOT NULL
SYS33 TT_BIGINT NOT NULL
SYS8 TT_BIGINT NOT NULL
SYS4 TT_SMALLINT NOT NULL
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NUMNULL TT_SMALLINT NOT NULL
NUMCOLS TT_SMALLINT NOT NULL
LENGTH TT_BIGINT NOT NULL
SYS19 TT_BIGINT NOT NULL
SYS20 BINARY (1) NOT NULL
SYS21 BINARY (1) NOT NULL
SYS5 TT_SMALLINT NOT NULL
NUMLOB TT_SMALLINT NOT NULL
SYS65 TT_SMALLINT NOT NULL
SYS6 TT_BIGINT NOT NULL
SYS31 TT_BIGINT NOT NULL
SYS40 TT_BIGINT NOT NULL
SYS41 TT_BIGINT NOT NULL
SYS43 TT_BIGINT NOT NULL
SYS39 BINARY (1) NOT NULL
NUMCOMPRESS TT_SMALLINT NOT NULL
SYS64 TT_INTEGER NOT NULL
SYS7 TT_BIGINT NOT NULL
TBLID TT_BIGINT NOT NULL
NUMTUPS TT_BIGINT NOT NULL
MAXTUPS TT_BIGINT NOT NULL
SYS9 TT_INTEGER NOT NULL
SYS10 TT_INTEGER NOT NULL
SYS29 BINARY (4000) NOT NULL
SYS32 TT_BIGINT NOT NULL
SYS11 TT_BIGINT NOT NULL
PRIMCNT TT_SMALLINT NOT NULL
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SYS22 TT_BIGINT NOT NULL
SYS12 TT_BIGINT NOT NULL
CACHEFLAG BINARY (1) NOT NULL
XLAFLAG BINARY (1) NOT NULL
PXLAFLAG BINARY (1) NOT NULL
SYS16 TT_SMALLINT NOT NULL
CACHEGROUP TT_BIGINT NOT NULL
OCACHEGROUP TT_BIGINT NOT NULL
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CVVERSIONNUM TT_INTEGER NOT NULL
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SYS57 TT_SMALLINT NOT NULL
SYS25 TT_INTEGER NOT NULL
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SYS35 TT_INTEGER NOT NULL
SYS36 TT_BIGINT NOT NULL
SYS37 TT_BIGINT NOT NULL
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SYS27 BINARY (240) NOT NULL
REPACCESS TT_CHAR (1) NOT NULL
REPTSUPDATERULE TT_CHAR (1) NOT NULL
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SYS46 TT_BIGINT NOT NULL
SYS47 TT_INTEGER NOT NULL
SYS48 TT_INTEGER NOT NULL
SYS49 TT_INTEGER NOT NULL
SYS50 TT_INTEGER NOT NULL
SYS51 TT_INTEGER NOT NULL
SYS52 TT_INTEGER NOT NULL
SYS53 TT_INTEGER NOT NULL
SYS54 TT_INTEGER NOT NULL
SYS55 TT_BIGINT NOT NULL
SYS56 TT_BIGINT NOT NULL
SYS28 BINARY (16) NOT NULL
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SYS58 TT_SMALLINT NOT NULL
SYS59 TT_SMALLINT NOT NULL
SYS60 TT_BIGINT NOT NULL
SYS61 TT_BIGINT NOT NULL
SYS62 TT_BIGINT NOT NULL
VALTBLIDS VARBINARY (8000) NOT INLINE
SYS63 TT_INTEGER NOT NULL
SYS66 TT_INTEGER NOT NULL
SYS67 TT_BIGINT NOT NULL
SYS68 TT_BIGINT NOT NULL
SYS17 BINARY (32) NOT NULL
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(primary key columns are indicated with *)
I searched white book of Timesten11.2, but the columns of sys.tables in it is different from above.
also, in http://docs.oracle.com/cd/E13085_01/doc/timesten.1121/e17114/systemtables.htm#TTSYS379, I can't find it.
Thanks a lot .

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Wrote file afiedt.buf
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Regards

Can I update 2(or multiple) columns in a table based on one of update col?

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