我用Oracle写了这段代码,但是把它放在MySQL里,我得到了一个错误。SQL查询:文档 From Certificare LIMIT 0, 25 #1064 - You have an error in your SQL syntax; checkthe manual that corresponds to yo
我想看看我的桌子里有没有重复的票号。我下面的代码是显示classes表中的第一个票号1039,如果有重复,我想显示出来。1039不是重复的。我的问题是什么?$query = "SELECT ticket, COUNT(ticket) AS NumOccurrences FROM classes GROUP BY ticket HAVING (COUNT(ticket) > 1)";
$result = mysql_query(
有一个列id、标题、纬度、经度(MySql)的表&我希望在4公里范围内得到结果,因为我提供的是当前位置的纬度和经度。(latitude = 26.85005 AND longitude = 26.85393) AND (longitude = 80.94964 AND longitude = 80.96595) HAVING
INNER JOIN property pr ON pr.id = pl.property_id INNER JOIN communities cm ON cm.id = pr.community_id HavingPrev查询标题是:为什么在MySql查询中应用最大、最小价格公式时没有结果?这里是我的mysql查询。我想要20英里以下的房价。但结果为空。例如,距离是20,但我也得到了20英里以下的数据库。INNER JOIN prope
sin(radians({$latitude})) * sin(radians(`latitude_range`)))) AS distance FROM cities WHERE active = 1 HAVINGdistance > 25 ORDER BY distance ASC如何将HAVING dist