insert into table where if not in list

Can anybody help me with the syntax?

insert into history (company,partnumber,price) 
 values ('blah','IFS0090','0.00') 
 if company NOT IN ('blah','blah2','blah3','blah4','blah4') 
 and partnumber='IFS0090';

Background:

I have a history table which stores daily company, products and prices. But sometimes a compan开发者_Go百科y will remove itself for a few days. Complicating the issue is because I'm only saving daily CHANGES to prices only and not snapshotting the entire days list (the data would be huge) when I display the data the company will still come up for the previous days price. So I need to do something like this, where a 0.00 price means they're no longer there.

Use:

INSERT INTO HISTORY
  (company, partnumber, price)
 SELECT 'blah', 'IFS0090','0.00'
   FROM HISTORY h
  WHERE h.company NOT IN ('blah','blah2','blah3','blah4','blah4') 
    AND h.partnumber = 'IFS0090'

You are mixing two completely different concepts in your statement. Choose one:

• Either you want to INSERT constant values (in that case make your checks in your programming language and generate the INSERT INTO ... VALUES (...) accordingly)
• or insert the filtered contents of another table.

The latter is possible in MySQL (that's the INSERT ... SELECT syntax), the query would look like this:

INSERT INTO history (...)
SELECT ...
FROM liveTable
INNER JOIN moreTables ...
--# this is a regular SELECT statement, as you might have guessed by now
WHERE company NOT IN ('blah','blah2','blah3','blah4','blah4') 
AND partnumber='IFS0090';