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Trouble getting result from join query
Message
 
To
08/06/2012 11:22:25
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Environment versions
Visual FoxPro:
VFP 8 SP1
OS:
Windows 7
Network:
Windows 2008 Server
Database:
MS SQL Server
Application:
Desktop
Miscellaneous
Thread ID:
01545667
Message ID:
01545673
Views:
63
>You need a group by:
>
>
>SELECT count(person.lname), ;
>	sum(pinfo.workhour),lname ;
>	FROM Person INNER JOIN Pinfo ON person.personid = pinfo.personid ;
>	WHERE person.personid = 1 ;
>		or person.personid = 2 ;
>		GROUP BY lname
>
>
>
>
>>Hi UT,
>>
>>I am having trouble getting result from a join query. I have 2 tables that contain following information:
>>
>>
>>Table 1:  Person
>>
>>personid       lname
>>1              Tom
>>2              Stacy
>>
>>
>>Table 2:   Pinfo
>>
>>personid            workhour
>>1                      3
>>1                      2
>>1                      3
>>2                      1
>>2                      5
>>2                      4
>>
>>
>>I am writng following query where I need a count from Person table and a sum from Pinfo table. Here is my query:
>>
>>
>>SELECT count(person.lname), sum(pinfo.workhour) FROM Person INNER JOIN ;
>>Pinfo ON person.personid = pinfo.personid WHERE person.personid = 1 ;
>>or person.personid = 2 
>>
>>
>>The result I am getting is 6 for the person.lname count and 18 for the sum of workhour. It seems like my person.lname count is count the number of records in Pinfo table. What I really need is a count of 2 for number of person records found and a sum of 18 for the workhours found. Can someone help me figure out why my count for person.lname is wrong and how I should formulate this query.
>>
>>thanks
>>Nick

Hi Peter,

I tried that and it gave me
Cnt_lname    Sum_workhour
3                  8
3                  10
The results I'm hoping for is
Cnt_lname        Sum_workhour
2                      18
Nick
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