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How to get counts in returned recordset
Message
De
13/07/2004 07:47:14
Jay Johengen
Altamahaw-Ossipee, Caroline du Nord, États-Unis
 
 
À
13/07/2004 06:29:39
Steven Kleypas
Tarrant County College District
Texas, États-Unis
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00923610
Message ID:
00923626
Vues:
26
This message has been marked as the solution to the initial question of the thread.
>I want a list of courses with the number of students who pass and fail each one. The following is what I am working with, but am having no luck getting correct numbers for the nPass and nFail vars. Would anyone have a suggestion?
>
>SELECT Courses.ctitle,Courses.tstartdate, ;
>       Courses.csectnum, Courses.iid,;
>  COUNT(students.cstatus = "PASS" ) AS nPass,;
>  COUNT(students.cstatus = "FAIL" ) AS nFail;
> FROM  regman!courses INNER JOIN regman!students ;
>   ON  Courses.iid = Students.icourseid;
> GROUP BY Courses.csectnum;
> ORDER BY Courses.tstartdate
>
How about:
SUM(IIF(students.cstatus = "PASS",1,0)) AS nPass,;
SUM(IIF(students.cstatus = "FAIL",1,0)) AS nFail,;
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