I don't see an easy way to do this in one SQL statement. But, the
following PHP does the trick for me (assuming MySQL):
// get the list of Y values
$r = mysql_query( SELECT * FROM table GROUP BY Y );
while( $y_val = mysql_fetch_array( $r ) )
$y_vals[] = $y_val['Y'];
// For each Y, fetch the Xs from the table
foreach( $y_vals as $y )
{
echo hr$ybr;
// get all the Xs for this Y
$r = mysql_query( SELECT * FROM table WHERE Y='$y' );
while( $row = mysql_fetch_array( $r ) )
echo $row['X'] . br;
}
Let us know if this works.
--Dave
On Mon, 2002-12-02 at 00:53, Victor wrote:
Consider the following table:
U | X | Y
--|---|--
me|001|0a
me|002|0a
me|003|0a
me|002|0b
me|003|0b
me|004|0b
..|...|..
then the code says:
SELECT * FROM Y WHERE U = me
So now what?
- remember I do not know the value of Y, so it has to be an automatic
thing; I can't just say ... WHERE U = me AND Y = a.
I want this output:
0a
001
002
003
___ (hr)
0b
002
003
004
How the hell do I do that? I can't think of the goddamn' syntax!
__
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