Question

Using the following query:

SELECT sum(severity) as Score, DATE_FORMAT(LAST_UPDATE,"%Y-%m") as    
score_date 
FROM  missingpatches 
GROUP BY score_date

Is there a way within the query to assign a value for each of the numbers in the ‘severity’ column and then sum these new values?

For example right now I have:

Severity Last_Update
1 5/1/2012
1 5/1/2012
2 5/1/2012
2 5/1/2012
3 5/1/2012
3 5/1/2012

And I would like all 1s to have a score of 10, 2’s to have a score of 9 and 3s to have a score of 6

Is there a way to do this within the query? Or is there a way to insert the scores for each severity into the table automatically using a trigger every time new severity numbers are entered?

Answer 1

You can try using CASE WHEN THEN

SELECT sum(CASE severity WHEN 1 THEN 10 WHEN 2 THEN 9 WHEN 3 THEN 6 END) as Score, DATE_FORMAT(LAST_UPDATE,"%Y-%m") as    
score_date 
FROM  missingpatches 
GROUP BY score_date