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How do you join on the same table, twice, in mysql?
I have 2 tables. One (domains) has domain ids, and domain names (dom_id, dom_url).
3 Answers
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When NOT to use Cassandra?
...ase of RDBMS, making a choice is quite easy because all the databases like MySQL, Oracle, MS SQL, PostgreSQL in this category offer almost the same kind of solutions oriented toward ACID properties. When it comes to NoSQL, the decision becomes difficult because every NoSQL database offers different ...
Which is more efficient: Multiple MySQL tables or one large table?
I store various user details in my MySQL database. Originally it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tabl...
detect key press in python?
...
keyboard apparently requires root in linux :/
– Inaimathi
Nov 14 '17 at 16:05
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MySQL COUNT DISTINCT
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f5737628%2fmysql-count-distinct%23new-answer', 'question_page');
}
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Post as a guest
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浮点数在内存中的表示 - C/C++ - 清泛网 - 专注IT技能提升
...值最好用fabs(i) < 0.0000001
下面再来看看浮点数在内存中是如何表示的吧。
如：125.5 = 1111101.1(1.1111011*2^6)，三个段分别为 0, 10000101(127+6=133), 11110110000000000000000
下面提供一个Demo，大家有兴趣的话可以直接修改自行验证其他的例...
phpcms标签向导有什么用？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...）
碎片标签（上图所示）
三、管理标签向导
四、如何使用标签
五、常用标签分享
1、调用栏目ID为12的文章，按ID倒序排列，调取5条
{pc:content action="lists" catid="12" order="id DESC" thumb="" moreinfo="1" num="5" }
{loop $data $n $r}
...
WCF：使用Array替代List - 更多技术 - 清泛网 - 专注IT技能提升
...类型的数据结果存在这么大的差异？
不同点在于SOAP消息如何生成：
对于List<byte>：
...
<s:Body u:Id="_0"
xmlns:u="http://docs.oasis-open.org/wss/2004/01/
oasis-200401-wss-wssecurity-utility-1.0.xsd">
<SendData xmlns="http://tempuri.org/">
<array
x...
浮点数在内存中的表示 - C/C++ - 清泛网 - 专注IT技能提升
...值最好用fabs(i) < 0.0000001
下面再来看看浮点数在内存中是如何表示的吧。
如：125.5 = 1111101.1(1.1111011*2^6)，三个段分别为 0, 10000101(127+6=133), 11110110000000000000000
下面提供一个Demo，大家有兴趣的话可以直接修改自行验证其他的例...
WCF：使用Array替代List - 更多技术 - 清泛网 - 专注IT技能提升
...类型的数据结果存在这么大的差异？
不同点在于SOAP消息如何生成：
对于List<byte>：
...
<s:Body u:Id="_0"
xmlns:u="http://docs.oasis-open.org/wss/2004/01/
oasis-200401-wss-wssecurity-utility-1.0.xsd">
<SendData xmlns="http://tempuri.org/">
<array
x...