databaseType,'access') !== false; // note - vfp 6 still doesn' work even with IIF enabled || $db->databaseType == 'vfp'; //$hidecnt = false; if ($where) $where = "\nWHERE $where"; if (!is_array($colfield)) $colarr = $db->GetCol("select distinct $colfield from $tables $where order by 1"); if (!$aggfield) $hidecnt = false; $sel = "$rowfields, "; if (is_array($colfield)) { foreach ($colfield as $k => $v) { $k = trim($k); if (!$hidecnt) { $sel .= $iif ? "\n\t$aggfn(IIF($v,1,0)) AS \"$k\", " : "\n\t$aggfn(CASE WHEN $v THEN 1 ELSE 0 END) AS \"$k\", "; } if ($aggfield) { $sel .= $iif ? "\n\t$aggfn(IIF($v,$aggfield,0)) AS \"$sumlabel$k\", " : "\n\t$aggfn(CASE WHEN $v THEN $aggfield ELSE 0 END) AS \"$sumlabel$k\", "; } } } else { foreach ($colarr as $v) { if (!is_numeric($v)) $vq = $db->qstr($v); else $vq = $v; $v = trim($v); if (strlen($v) == 0 ) $v = 'null'; if (!$hidecnt) { $sel .= $iif ? "\n\t$aggfn(IIF($colfield=$vq,1,0)) AS \"$v\", " : "\n\t$aggfn(CASE WHEN $colfield=$vq THEN 1 ELSE 0 END) AS \"$v\", "; } if ($aggfield) { if ($hidecnt) $label = $v; else $label = "{$v}_$aggfield"; $sel .= $iif ? "\n\t$aggfn(IIF($colfield=$vq,$aggfield,0)) AS \"$label\", " : "\n\t$aggfn(CASE WHEN $colfield=$vq THEN $aggfield ELSE 0 END) AS \"$label\", "; } } } if ($aggfield && $aggfield != '1'){ $agg = "$aggfn($aggfield)"; $sel .= "\n\t$agg as \"$sumlabel$aggfield\", "; } if ($showcount) $sel .= "\n\tSUM(1) as Total"; else $sel = substr($sel,0,strlen($sel)-2); // Strip aliases $rowfields = preg_replace('/ AS (\w+)/i', '', $rowfields); $sql = "SELECT $sel \nFROM $tables $where \nGROUP BY $rowfields"; return $sql; } /* EXAMPLES USING MS NORTHWIND DATABASE */ if (0) { # example1 # # Query the main "product" table # Set the rows to CompanyName and QuantityPerUnit # and the columns to the Categories # and define the joins to link to lookup tables # "categories" and "suppliers" # $sql = PivotTableSQL( $gDB, # adodb connection 'products p ,categories c ,suppliers s', # tables 'CompanyName,QuantityPerUnit', # row fields 'CategoryName', # column fields 'p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID' # joins/where ); print "

$sql";
 $rs = $gDB->Execute($sql);
 rs2html($rs);
 
/*
Generated SQL:

SELECT CompanyName,QuantityPerUnit, 
	SUM(CASE WHEN CategoryName='Beverages' THEN 1 ELSE 0 END) AS "Beverages", 
	SUM(CASE WHEN CategoryName='Condiments' THEN 1 ELSE 0 END) AS "Condiments", 
	SUM(CASE WHEN CategoryName='Confections' THEN 1 ELSE 0 END) AS "Confections", 
	SUM(CASE WHEN CategoryName='Dairy Products' THEN 1 ELSE 0 END) AS "Dairy Products", 
	SUM(CASE WHEN CategoryName='Grains/Cereals' THEN 1 ELSE 0 END) AS "Grains/Cereals", 
	SUM(CASE WHEN CategoryName='Meat/Poultry' THEN 1 ELSE 0 END) AS "Meat/Poultry", 
	SUM(CASE WHEN CategoryName='Produce' THEN 1 ELSE 0 END) AS "Produce", 
	SUM(CASE WHEN CategoryName='Seafood' THEN 1 ELSE 0 END) AS "Seafood", 
	SUM(1) as Total 
FROM products p ,categories c ,suppliers s  WHERE p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID 
GROUP BY CompanyName,QuantityPerUnit
*/
//=====================================================================

# example2
#
# Query the main "product" table
# Set the rows to CompanyName and QuantityPerUnit
# and the columns to the UnitsInStock for diiferent ranges
# and define the joins to link to lookup tables 
# "categories" and "suppliers"
#
 $sql = PivotTableSQL(
 	$gDB,										# adodb connection
 	'products p ,categories c ,suppliers s',	# tables
	'CompanyName,QuantityPerUnit',				# row fields
												# column ranges
array(										
' 0 ' => 'UnitsInStock <= 0',
"1 to 5" => '0 < UnitsInStock and UnitsInStock <= 5',
"6 to 10" => '5 < UnitsInStock and UnitsInStock <= 10',
"11 to 15"  => '10 < UnitsInStock and UnitsInStock <= 15',
"16+" =>'15 < UnitsInStock'
),
	' p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID', # joins/where
	'UnitsInStock', 							# sum this field
	'Sum'										# sum label prefix
);
 print "$sql";
 $rs = $gDB->Execute($sql);
 rs2html($rs);
 /*
 Generated SQL:
 
SELECT CompanyName,QuantityPerUnit, 
	SUM(CASE WHEN UnitsInStock <= 0 THEN UnitsInStock ELSE 0 END) AS "Sum  0 ", 
	SUM(CASE WHEN 0 < UnitsInStock and UnitsInStock <= 5 THEN UnitsInStock ELSE 0 END) AS "Sum 1 to 5", 
	SUM(CASE WHEN 5 < UnitsInStock and UnitsInStock <= 10 THEN UnitsInStock ELSE 0 END) AS "Sum 6 to 10", 
	SUM(CASE WHEN 10 < UnitsInStock and UnitsInStock <= 15 THEN UnitsInStock ELSE 0 END) AS "Sum 11 to 15", 
	SUM(CASE WHEN 15 < UnitsInStock THEN UnitsInStock ELSE 0 END) AS "Sum 16+",
	SUM(UnitsInStock) AS "Sum UnitsInStock", 
	SUM(1) as Total 
FROM products p ,categories c ,suppliers s  WHERE  p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID 
GROUP BY CompanyName,QuantityPerUnit
 */
}
?>