Question

I am new to SQL so please be kind. I am able to get all of the information by looking in the database and exporting it to excel. Once in excel I have to create forumlas to get it all the way I would like it. If at all possible I would like to just run a query to look at it all. I have Google’ed around but I can’t seem to find something that either makes sense to me or points me in the right direction.

I would think by my searches that there would be some kind of join but again being new to SQL I am grasping at straws.

Given the following sample tables:

Tickets Table:

ID    Queue  Owner  Subject            Status    TimeWorked    LastUpdated
001   1      22     need help          Open      20            2012-09-01
002   2      6      internet           Resolved  60            2012-09-03
003   1      24     email not working  Open      15            2012-09-04

Users Table:

ID    Name
6     Nobody
22    Josh
24    Jon

CustomFieldValue Table:

Id      ObjectId    CustomField    Content
01      001         1              Bob Inc
02      001         2              0
03      001         3              WaitingOnClient
04      001         4              Remote
05      002         1              ZYC Inc
06      002         2              15
07      002         3              WaitingOnClient
08      002         4              Remote
09      003         1              ACB Inc
10      003         2              0
11      003         3              TimeScheduled
12      003         4              OnSite

Queue Table:

ID    Name
1     Support
2     Tier2

What I would need to be able to do is query to get the results to look like the following

ID  Client  Subject   Queue    Owner  Status    Type   BTime CustomStat      LastUpdate NT
001 Bob Inc need help support  Josh   open      Remote 20    WaitingOnClient 2012-09-01 0
001 ZYC Inc internet  Tier2    Nobody Resolved  Remote 60    WaitingOnClient 2012-09-01 15
001 ACB Inc email     support  Jon    open      onsite 15    TimeScheduled   2012-09-01 0

Any help would be much appreciated.

Thanks in advance

Answer 1

You need to use inline CASE statement for this, GROUP_CONCAT and should be grouped by ID. Give this a try.

SELECT  a.ID,
        GROUP_CONCAT((CASE WHEN d.CustomeField = 1 THEN d.content ELSE NULL END)) `Client`,
        a.Subject,
        c.Name,
        b.Name Owner,
        a.`Status`,
        GROUP_CONCAT((CASE WHEN d.CustomeField = 4 THEN d.content ELSE NULL END)) `Type`,
        a.TimeWorked,
        GROUP_CONCAT((CASE WHEN d.CustomeField = 3 THEN d.content ELSE NULL END)) `CustomStat`,
        a.LastUpdated,
        GROUP_CONCAT((CASE WHEN d.CustomeField = 2 THEN d.content ELSE NULL END)) `NT`
FROM    tickets a
        INNER JOIN users b
            ON a.owner = b.id
        INNER JOIN queue c
            ON a.queue = c.id
        INNER JOIN  CustomFieldValue d
            ON a.ID = d.ObjectID
 GROUP BY a.ID

SQLFiddle Demo