Solved

Help with a SQL Query

Posted on 2013-05-10
6
291 Views
Last Modified: 2013-05-10
My tables look like this:

TableA
-------------
Emp_id    |Name
 11           | John
 18           | Karen
 21           | Tim


TableB
--------------
Visit_id   | City
1             |  Moscow
2             |  Tokyo
3             |  Frankfurt
4             |  Miami


TableC
-------------
Emp_id   | Visit_id
11           |  2  
21           |  1  
11           |  2
18           |  4  
18           |  3
18           |  2


I need a query that will take the tables above and do this:

Emp_id    |  Name   |  Moscow   |  Tokyo   |  Frankfurt   |  Miami  
11            |   John    |                  |       X      |                    |
18            |  Karen   |                 |       X      |        X          |       X
21            |  Tim      |        X       |               |                    |
Total:       |              |        1       |       2      |          1        |       1

Note: I don't mind having to hardcode the cities into the query (in fact, that might be a plus because I'll want control over the order of the city columns).  Also, the 'X's don't have to be X's...they can be replaced by 1's (or whatever).  Finally, the totals-line in the example is not absolutely necessary (I'm exporting this to Excel and the users could add that themselves).

Appreciate it.
0
Comment
Question by:David L. Hansen
  • 3
  • 3
6 Comments
 
LVL 40

Expert Comment

by:Sharath
ID: 39157175
can you try this?
Transform count(TableB.City) as cnt
select TableA.Emp_id,TableA.Name
  from ((TableA 
  inner join TableC on TableA.Emp_id = TableC.Emp_id)
 inner join TableB on TableB.Visit_id = TableC.Visit_id)
 group by TableA.Emp_id,TableA.Name
pivot TableB.City;

Open in new window

0
 
LVL 15

Author Comment

by:David L. Hansen
ID: 39157205
That's amazing!  Thanks so much.  The points are yours.  
Could you give some pointers on how I can manipulate the order of the columns?
0
 
LVL 40

Expert Comment

by:Sharath
ID: 39157233
check if this helps.
Transform count(TableB.City) as cnt
select TableA.Emp_id,TableA.Name
  from ((TableA 
  inner join TableC on TableA.Emp_id = TableC.Emp_id)
 inner join TableB on TableB.Visit_id = TableC.Visit_id)
 where TableB.City IN ('Moscow','Tokyo','Frankfurt','Miami')
 group by TableA.Emp_id,TableA.Name
pivot TableB.City;

Open in new window

0
Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

 
LVL 40

Accepted Solution

by:
Sharath earned 500 total points
ID: 39157235
sorry, this.
Transform count(TableB.City) as cnt
select TableA.Emp_id,TableA.Name
  from ((TableA 
  inner join TableC on TableA.Emp_id = TableC.Emp_id)
 inner join TableB on TableB.Visit_id = TableC.Visit_id)
 group by TableA.Emp_id,TableA.Name
pivot TableB.City IN ('Moscow','Tokyo','Frankfurt','Miami');

Open in new window

0
 
LVL 15

Author Comment

by:David L. Hansen
ID: 39157278
Very nice!
0
 
LVL 15

Author Comment

by:David L. Hansen
ID: 39157314
If you are still here Sharath I'm about to post another question about exporting this query into an excel spreadsheet.  I've got this working except that all the columns are the same width (a bit too narrow).

I'm using this code:
DoCmd.OutputTo acOutputQuery, "OptCouncilRpt", acFormatXLS, "C:\Temp\OptCouncilRpt" & Format(Date, "yyyymmdd") & ".xls"

Open in new window


Here is the link:
http://www.experts-exchange.com/Software/Office_Productivity/Office_Suites/MS_Office/Excel/Q_28124952.html
0

Featured Post

Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In a multiple monitor setup, if you don't want to use AutoCenter to position your popup forms, you have a problem: where will they appear?  Sometimes you may have an additional problem: where the devil did they go?  If you last had a popup form open…
I see at least one EE question a week that pertains to using temporary tables in MS Access.  But surprisingly, I was unable to find a single article devoted solely to this topic. I don’t intend to describe all of the uses of temporary tables in t…
Familiarize people with the process of utilizing SQL Server stored procedures from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Micr…
In Microsoft Access, learn different ways of passing a string value within a string argument. Also learn what a “Type Mis-match” error is about.

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question