[英]How do I combine two statement will be one query?
Here an example queries to get two type of icons.. 这里有一个示例查询以获取两种类型的图标。
$fetchIcon = array();
$queryIcon = $db->query("SELECT * FROM icon_code WHERE icon_type = 'icon'");
while ($fIcon = $db->fetch_assoc($queryIcon)) {
$fetchIcon[] = $fIcon;
}
$fetchOther = array();
$queryOther = $db->query("SELECT * FROM icon_code WHERE icon_type = 'other'");
while ($fOther = $db->fetch_assoc($queryOther)) {
$fetchOther[] = $fOther;
}
Then I use foreach
to show an ouput on the same page. 然后,我使用
foreach
在同一页面上显示输出。
foreach ($fetchIcon as $Icon) {
echo $Icon['IconName']; // select option for Icon
}
foreach ($fetchOther as $Other) {
echo $Other['IconName']; // select option for other icon
}
Question : How do I combine the two statement will be one query? 问题:我如何结合两个语句将一个查询?
SELECT * FROM icon_code
WHERE icon_type = 'icon'
or icon_type = 'other'
ORDER BY icon_type
or 要么
SELECT * FROM icon_code
WHERE icon_type in ('icon', 'other')
ORDER BY icon_type
The order by
is optional to get the order by type. order by
是可选的,以按类型获取订单。
SELECT *
FROM icon_code
WHERE icon_type IN ('icon', 'other')
and then 接着
$fetchIcon = array();
$fetchOther = array();
while($row = mysql_fetch_assoc($result)) {
switch($row['icon_type']) {
case 'icon':
$fetchIcon[] = $row;
break;
case 'other':
default:
$fetchOther[] = $row;
}
}
我建议使用IN函数:
$queryOther = $db->query("SELECT * FROM icon_code WHERE icon_type IN ('other', 'icon'");
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