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How to get counts in returned recordset
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De
13/07/2004 06:29:39
Steven Kleypas
Tarrant County College District
Texas, États-Unis
 
 
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Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
How to get counts in returned recordset
Divers
Thread ID:
00923610
Message ID:
00923610
Vues:
61
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
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