How do I pass multiple values from a text box to an update statement

Question

I hope this does not sound to lame. I am trying to update multiple values Like this:
Code|| Computer Desc || Computer Price || Computer Name
SEL1 || Apple macbook || 1564 || Apple Macbook Basic
SEL2 || Dell 630 || 1470 || Dell Latitude
I want to change all six values at once in one update statement based on the Code, I can't find a good tutorial/example to help me.
Can anyone point me in the right direction?
Thanks so much,
Laura

Answer 1

You can do conditional updates with decode or case statements e.g.
SQL> create table t as
  2  select 'SEL1' as code, 'Apple macbook' as comp_desc, 1564 as comp_price, 'Apple Maxbook Basic' as comp_name from dual union
  3  select 'SEL2', 'Dell 630', 1470, 'Dell Latitude' from dual
  4  /
Table created.
SQL>
SQL> update t
  2  set comp_desc = CASE code WHEN 'SEL1' THEN 'Test1' Else 'Test2' END,
  3      comp_price = CASE code WHEN 'SEL1' THEN 1234 Else 2345 END,
  4      comp_name = CASE code WHEN 'SEL1' THEN 'Test1 Name' Else 'Test2 Name' END
  5  /
2 rows updated.
SQL>
SQL> select * from t
  2  /
CODE COMP_DESC     COMP_PRICE COMP_NAME
SEL1 Test1               1234 Test1 Name
SEL2 Test2               2345 Test2 Name
SQL>