angel2006 Posted April 20, 2006 Share Posted April 20, 2006 hi, could someone please help me with this query,i have these tables for the query:lecture: lecture_id (PK), module_code(FK), lec_datemodule: module_code(PK), info about it...student_modules: student_id(FK), module_code(FK)student: student_id(PK), student details...i need to work out which students are taking which modules, then from that result, which module has which lecture. So in the end i want to create a form which will display these fields automatically on the pagecould some 1 help???? Quote Link to comment Share on other sites More sharing options...
Barand Posted April 20, 2006 Share Posted April 20, 2006 Something like this?[code]$sql = "SELECT s.student_name, m.module_code, m.module_name, l.lecture_id, l.lec_date FROM student s INNER JOIN student_models sm ON s.student_id = sm_student_id INNER JOIN module m ON sm.module_code = m.module_code INNER JOIN lecture l ON l.module_code = m.module_code WHERE s.student_id = '$sid' ORDER BY m.module_name, l.lec_date";$res = mysql_query($sql) or die (mysql_error());list ($sname, $modcode, $modname, $lecid, $lecdate) = mysql_fetch_row($res);echo "<h3>$sname</h3>";$prevmod = '';do { if ($prevmod != $modcode) { echo "<h4>$modcode - $modname</h4>"; $prevmod = $modcode; } echo "$lecid $lecdate<br>";} while (list ($sname, $modcode, $modname, $lecid, $lecdate) = mysql_fetch_row($res));[/code] Quote Link to comment Share on other sites More sharing options...
angel2006 Posted April 20, 2006 Author Share Posted April 20, 2006 [!--quoteo(post=366979:date=Apr 20 2006, 08:44 PM:name=Barand)--][div class=\'quotetop\']QUOTE(Barand @ Apr 20 2006, 08:44 PM) [snapback]366979[/snapback][/div][div class=\'quotemain\'][!--quotec--]Something like this?[code]$sql = "SELECT s.student_name, m.module_code, m.module_name, l.lecture_id, l.lec_date FROM student s INNER JOIN student_models sm ON s.student_id = sm_student_id INNER JOIN module m ON sm.module_code = m.module_code INNER JOIN lecture l ON l.module_code = m.module_code WHERE s.student_id = '$sid' ORDER BY m.module_name, l.lec_date";$res = mysql_query($sql) or die (mysql_error());list ($sname, $modcode, $modname, $lecid, $lecdate) = mysql_fetch_row($res);echo "<h3>$sname</h3>";$prevmod = '';do { if ($prevmod != $modcode) { echo "<h4>$modcode - $modname</h4>"; $prevmod = $modcode; } echo "$lecid $lecdate<br>";} while (list ($sname, $modcode, $modname, $lecid, $lecdate) = mysql_fetch_row($res));[/code][/quote]thanks that seems 2 work, there arent any errors but im not sure how 2 test it and if i have an input what it should be Quote Link to comment Share on other sites More sharing options...
Barand Posted April 20, 2006 Share Posted April 20, 2006 [!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]WHERE s.student_id = '$sid'[/quote]You need to input the student's id (as [b]$sid[/b]) whose lectures you want to list Quote Link to comment Share on other sites More sharing options...
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