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Extracting the last n characters from a string in R
...ge of basically being substr() underneath but has a default end value of 1,000,000.
Examples:
> RIGHT('Hello World!',2)
[1] "d!"
> RIGHT('Hello World!',8)
[1] "o World!"
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Trees in Twitter Bootstrap [closed]
...yLighter;
border: 1px solid @gray;
color: #000;
}
}
/*Remove connectors after last child*/
&:last-child::before {
height: 30px;
}
}
/*Remove connectors before root*/
> ul > li::before, > ...
What scalability problems have you encountered using a NoSQL data store? [closed]
...
My current project actually.
Storing 18,000 objects in a normalised structure: 90,000 rows across 8 different tables. Took 1 minute to retrieve and map them to our Java object model, that's with everything correctly indexed etc.
Storing them as key/value pairs usi...
Convert boolean to int in Java
...
I just did a test converting 1,000,000 random Boolean values and this method was consistently faster than that based on the ternary operator. It shaved off about 10ms.
– Mapsy
Oct 24 '14 at 13:14
...
CSS background-image - What is the correct usage?
...'t load or isn't available for some reason.
#elementID {
background: #000 url(images/slides/background.jpg) repeat-x top left;
}
Notice also that you can specify whether the image will repeat and in what direction (if you don't specify, the default is to repeat horizontally and vertically), a...
How to convert int to char with leading zeros?
...
Try this: select right('00000' + cast(Your_Field as varchar(5)), 5)
It will get the result in 5 digits, ex: 00001,...., 01234
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Oracle nvarchar和varchar相互转换、联合查询 - 数据库(内核) - 清泛网 - ...
...varchar：
可变长度的 非Unicode 数据，最长为8,000个字符。
2、nvarchar：
可变长度的 Unicode 数据，最长为4,000个字符。Oracle nvarchar varchar 相互转换 联合查询
解决：error while loading shared libraries: libpcre.so.1: cannot open ...
... libaprutil-0.so.0 => /usr/local/apache2/lib/libaprutil-0.so.0 (0x00242000)
libexpat.so.0 => /usr/lib/libexpat.so.0 (0x00554000)
libapr-0.so.0 => /usr/local/apache2/lib/libapr-0.so.0 (0x007e2000)
librt.so.1 => /lib/tls/librt.so.1 (0x00cb6000)
libm.so.6 => ...
nvarchar和varchar相互转换、联合查询 - ORACLE - 清泛IT论坛，有思想、有深度
... 可变长度的 非Unicode 数据，最长为8,000个字符。
2、nvarchar：
可变长度的 Unicode 数据，最长为4,000个字符。
Hadoop “Unable to load native-hadoop library for your platform” warning
...14' not found (required by ./libhadoop.so.1.0.0)
linux-vdso.so.1 => (0x00007fff43510000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f9be553a000)
libc.so.6 => /lib64/libc.so.6 (0x00007f9be51a5000)
/lib64/ld-linux-x86-64.so.2 (0x00007f9be5966000)
Unfortunately, I stupidly overlooked the answe...