order by btcount desc或 order by btcount失效,还有什么排序写法吗?
select * from table where yz='1' order by btcount desc这样写输出不对,
btcount这个字段很短,一般都是=0或=1,最大不超过=8
当数据量大时,就不能按btcount值的大于排列了,不知道为什么?
按time又能正确排序的:select * from table where yz='1' order by time desc
就是按btcount不能正确排序,难道是因为btcount字段长度太短了?
但在phpmyadmin中点击升序、降序又有效的,想知道phpmyadmin中难道不是用order by 来升序、降序的吗?
user btcount time id
aaa 0 1359119507 1
bbb 2 1359119506 2
ccc 0 1359119502 4
ddd 1 1359119501 6
eee 0 1359119467 7
fff 3 1359119467 9
ggg 2 1359116785 13
hhh 0 1359119687 15
请高手教我怎么写能正确输出?
回复讨论(解决方案)
select * from table where yz='1' order by btcount desc
yz字段在哪里?
select * from table where yz='1' order by btcount desc
yz字段在哪里?
因为yz都等于,所以下面的表中我就没打上,与这个无关
那你看看phpmyadmin是怎么写的吧。正常你点了按钮,上面会有相应的sql代码的。
那你看看phpmyadmin是怎么写的吧。正常你点了按钮,上面会有相应的sql代码的。
看了,那个太复杂了,看不懂,所以才来请教高手的。
那你看看phpmyadmin是怎么写的吧。正常你点了按钮,上面会有相应的sql代码的。
看了,那个太复杂了,看不懂,所以才来请教高手的。
那你把sql代码贴出来啊。你不贴出来谁知道是什么原因。
那你把sql代码贴出来啊。你不贴出来谁知道是什么原因。
不是写了吗:
select * from table where yz='1' order by btcount desc
那你把sql代码贴出来啊。你不贴出来谁知道是什么原因。
不是写了吗:
select * from table where yz='1' order by btcount desc
光看代码没问题啊。
要不试试
select * from `table` where yz='1' order by btcount desc
光看代码没问题啊。
要不试试
select * from `table` where yz='1' order by btcount desc
没用,要是简单我就不问了,谢谢你了,请你不要回复了,等待高手吧!
看代码是没问题的,贴建表及插入语句看看。
explain 一下你的语句。
另外btcount是 int, var还是什么格式?
explain 一下你的语句。
另外btcount是 int, var还是什么格式?
字段 类型 Null 默认
btcount int(6) 否 0
不知你想输出什么
对于你主贴所谓查询语句和数据,能得到一下结果
user btcount time idfff 3 1359119467 9bbb 2 1359119506 2ggg 2 1359116785 13ddd 1 1359119501 6aaa 0 1359119507 1ccc 0 1359119502 4eee 0 1359119467 7hhh 0 1359119687 15
不知你想输出什么
对于你主贴所谓查询语句和数据,能得到一下结果
user btcount time idfff 3 1359119467 9bbb 2 1359119506 2ggg 2 1359116785 13ddd 1 1359119501 6aaa 0 1359119507 1ccc 0 1359119502 4eee 0 1359119467 7hhh 0 1359119687 15
谢谢,就想要这输出效果,代码是?
select * from table order by btcount desc
你最好把
explain select * from table where yz='1' order by btcount desc
这个结果贴出来

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