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moorzee
Starting Member
5 Posts |
 Posted - 2013-04-18 : 04:02:27
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| Hi allI have a structure along the lines of Client, Area, Appointment.I need to produce a report giving counts of appointments by type, age of client etc... for each area. A client is linked to an area by foreign key.I can get the overall counts/totals but not by area.I'm struggling to get the counts grouping by area name. can anyone point me to an example of this type of query?Thanks. |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2013-04-18 : 04:52:25
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| just add a group by based Area field and apply your aggregation over required fields like in your case COUNT(ApointmentID) gives count of appointments etc------------------------------------------------------------------------------------------------------SQL Server MVPhttp://visakhm.blogspot.com/https://www.facebook.com/VmBlogs |
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moorzee
Starting Member
5 Posts |
Posted - 2013-04-18 : 05:55:52
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| But I need to return many different counts of differing criteria so I have sub selects as follows (not at work machine so from memory): SELECT (SELECT COUNT(1) FROM Appointment A INNER JOIN Client C ON C.ClientId = A.ClientId INNER JOIN Area A1 ON A1.AreaId = C.AreaId WHERE C.age BETWEEN 0 AND 15) AS BirthTo16, (SELECT COUNT(1) FROM Appointment A INNER JOIN Client C ON C.ClientId = A.ClientId INNER JOIN Area A1 ON A1.AreaId = C.AreaId WHERE C.age BETWEEN 16 AND 19) AS Age16To19How can I return the area name and the counts here? |
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bandi
Master Smack Fu Yak Hacker
2242 Posts |
Posted - 2013-04-18 : 06:07:49
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| --May be this?SELECTCOUNT(CASE WHEN c.age BETWEEN 0 AND 15 THEN AppointmentID END) AS BirthTo16,COUNT(CASE WHEN c.age BETWEEN 16 AND 19 THEN AppointmentID END) AS Age16To19FROM Appointment A INNER JOIN Client C ON C.ClientId = A.ClientId INNER JOIN Area A1 ON A1.AreaId = C.AreaId --GROUP BY type --Chandu |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2013-04-18 : 06:37:17
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quote:
Originally posted by moorzee
But I need to return many different counts of differing criteria so I have sub selects as follows (not at work machine so from memory): SELECT (SELECT COUNT(1) FROM Appointment A INNER JOIN Client C ON C.ClientId = A.ClientId INNER JOIN Area A1 ON A1.AreaId = C.AreaId WHERE C.age BETWEEN 0 AND 15) AS BirthTo16, (SELECT COUNT(1) FROM Appointment A INNER JOIN Client C ON C.ClientId = A.ClientId INNER JOIN Area A1 ON A1.AreaId = C.AreaId WHERE C.age BETWEEN 16 AND 19) AS Age16To19How can I return the area name and the counts here?
show your sample data and explain counts you wantotherwise we cant make out what you're expecting------------------------------------------------------------------------------------------------------SQL Server MVPhttp://visakhm.blogspot.com/https://www.facebook.com/VmBlogs |
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moorzee
Starting Member
5 Posts |
Posted - 2013-04-18 : 14:56:16
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quote:
Originally posted by bandi
--May be this?SELECTCOUNT(CASE WHEN c.age BETWEEN 0 AND 15 THEN AppointmentID END) AS BirthTo16,COUNT(CASE WHEN c.age BETWEEN 16 AND 19 THEN AppointmentID END) AS Age16To19FROM Appointment A INNER JOIN Client C ON C.ClientId = A.ClientId INNER JOIN Area A1 ON A1.AreaId = C.AreaId --GROUP BY type Chandu
Just what I needed bandi. Thanks a lot..... |
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bandi
Master Smack Fu Yak Hacker
2242 Posts |
Posted - 2013-04-19 : 00:27:30
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quote:
Originally posted by moorzeeJust what I needed bandi. Thanks a lot.....
Welcome --Chandu |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2013-04-19 : 02:24:35
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quote:
Originally posted by moorzee
quote:
Originally posted by bandi
--May be this?SELECTCOUNT(CASE WHEN c.age BETWEEN 0 AND 15 THEN AppointmentID END) AS BirthTo16,COUNT(CASE WHEN c.age BETWEEN 16 AND 19 THEN AppointmentID END) AS Age16To19FROM Appointment A INNER JOIN Client C ON C.ClientId = A.ClientId INNER JOIN Area A1 ON A1.AreaId = C.AreaId --GROUP BY type Chandu
Just what I needed bandi. Thanks a lot.....
In that case what you could do is to define the age range values in another table so that you can redefine range values add or remove as you like without changing the above logic code which will add more flexibility to the solution------------------------------------------------------------------------------------------------------SQL Server MVPhttp://visakhm.blogspot.com/https://www.facebook.com/VmBlogs |
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Count and group