MySQL错误“查询为空”

Question

$send_event = $db->query(sprintf("SELECT `bmembMember` FROM `bmembBusiness` = '%u' WHERE `bmembBusiness` = '%u' ORDER BY `bmembId` DESC", $bs['busId'])) OR die('Cron not run') ;
while($se=$db->fetch_row($send_event))
{
$text = "The {$bs['busName']} business went bankrupt\, all members have been made redundent." OR die('Cron not run');

由于

Answer 1

您的sprintf使用2个值，但您只提供一个。无论如何都不需要一个，那条线应该是

$send_event = $db->query(sprintf("SELECT `bmembMember` FROM `bmembBusiness` WHERE `bmembBusiness` = '%u' ORDER BY `bmembId` DESC", $bs['busId'])) OR die('Cron not run') ;

Answer 2

修复应修复查询的FROM条款。

 ...FROM `bmembBusiness` WHERE...

Answer 3

查询的高位区域错误，

＆＃34; SELECT bmembMember FROM bmembBusiness =＆＃39;％u＆＃39; WHERE bmembBusiness =＆＃39;％u＆＃ 39;订购者bmembId DESC＆＃34;，$ bs [＆＃39; busId＆＃39;]）

尝试使用此修复查询： -

  

SELECT bmembMember FROM Table_name WHERE bmembBusiness 赞＆＃39;％u＆＃39;   ORDER BY bmembId DESC，abs（busId）;