PHP获取查询数据中最早的时间和最晚时间如何写?这样不知对不对

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Release: 2016-06-13 12:26:50
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PHP获取查询数据中最早的时间和最晚时间怎么写??这样不知对不对

PHP获取查询数据中最早的时间和最晚时间怎么写??这样不知对不对
如下貌似运行正常啊,但是感觉并不是这样的写法吧

<br />$EarlyTime=mysql_result(mysql_query("select min(Time) from user where General=1 and UserID='".$row['DatID']."'",$conn),0);<br />$LatestTime=mysql_result(mysql_query("select max(Time) from user where General=1 and UserID='".$row['DatID']."'",$conn),0);<br />
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而且我感觉这样的执行效率太慢了。。。。索引了已经  还这样慢  受不鸟


请大神给个标准的获取数据库中最早时间和最后时间的方法吧

感激不尽!坐等高手!十分感谢!
------解决思路----------------------
在 Time、General、UserID 上都有索引吗?

两句应该合在一起写
list($EarlyTime, $LatestTime) = mysql_fetch_row(mysql_query("select min(Time), max(Time) from user where General=1 and UserID='".$row['DatID']."'"));

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