[英]How to update multiple columns in SQL?
嗨,我正在嘗試更新多列,我該怎么辦? 第一列是shoe1,想添加另一列但不能
// shoe1
$query = "SELECT shoe_id, shoes_image,
shoes FROM " . $DBPrefix . "shoes";
$params[] = array(':shoe_id', floor($time_passed), 'int');
$db->query($query, $params);
$TPL_shoe1_list = '<select name="shoe1">' . "\n";
while ($row = $db->fetch())
{
$selected = ($row['shoes'] == $shoe1) ? 'selected="true"' : '';
$TPL_shoe1_list .= "\t" . '<option value="' . $row['shoes'] . '" ' . $selected . '>' . $row['shoes'] .'</option>' . "\n";
}
$TPL_shoe1_list .= '</select>' . "\n";
通常,sql語法為
UPDATE table-name
SET column-name = value, column-name = value, ...
WHERE condition
例:
UPDATE Supplier
SET City = 'Oslo', Phone = '(0)1-953530', Fax = '(0)1-953555'
WHERE Id = 15
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