The following SELECT should produce your table
mysql Select id,
-Max(CASE TimeSlot
- WHEN 1 THEN Subject
-ELSE
-END) AS TS1,
-Max(CASE TimeSlot
- WHEN 2 THEN Subject
-ELSE
-END) AS TS2,
-Max(CASE TimeSlot
- WHEN 3 THEN Subject
-ELSE
-END) AS TS3,
-Max(CASE TimeSlot
- WHEN 4 THEN Subject
-ELSE
-END) AS TS4
- From sch
- Group by id
- ;
+-+--++--++
| id | TS1 | TS2| TS3 | TS4|
+-+--++--++
| 215 | Science1 | Maths1 | Eng1 ||
| 648 | | Maths2 | | Art|
| 901 | Science2 || Eng1 | French |
+-+--++--++
3 rows in set (0.00 sec)
-Original Message-
From: Sam Russo [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 09, 2002 5:25 PM
To: [EMAIL PROTECTED]
Subject: A difficutl query I cannot do.
I have a delimited file sent to me with students ID subjects and when
they
do these subjects. This file (table) looks like:
ID TimeSlotSubject
215 3 Eng1
648 2 Maths2
901 4 French
215 2 Maths1
901 1 Science2
648 4 Art
215 1 Science1
901 3 Eng1
I need to produce the following output (on a web page using php and
mysql) with a mysql query.
ID 1 2 3 4
215 Science1Maths1 Eng1
648 Maths2 Art
901 Science2Eng1
French
any help would be appreciated.
sam russo
[EMAIL PROTECTED]
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