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nvarchar和varchar相互转换、联合查询 - ORACLE - 清泛IT论坛，有思想、有深度
...换。
Specifying the USING CHAR_CS argument converts text into the database character set. The output datatype is VARCHAR2.
Specifying the USING NCHAR_CS argument converts text into the national character set. The output datatype is NVARCHAR2.
（A表字段c_xxx:varchar，B表c_xxx:nvarchar）...
error, string or binary data would be truncated when trying to insert
I am running data.bat file with the following lines:
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What is the fastest way to check if a class has a function defined?
...g an AI state space search algorithm, and I have a generic class which can be used to quickly implement a search algorithm. A subclass would define the necessary operations, and the algorithm does the rest.
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CSS scrollbar style cross browser [duplicate]
How can I define a CSS scrollbar style cross browser? I tested this code, it only works in IE and opera, but failed in Chrome, Safari and Firefox.
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How to print a linebreak in a python function?
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You have your slash backwards, it should be "\n"
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“Cloning” row or column vectors
Sometimes it is useful to "clone" a row or column vector to a matrix. By cloning I mean converting a row vector such as
9 A...
How does #include work in C++? [duplicate]
I have read from a codeforces blog that if we add #include <bits/stdc++.h> in a C++ program then there is no need to include any other header files. How does #include <bits/stdc++.h> work and is it ok to use it instead of including individual header files?
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Context switches much slower in new linux kernels
We are looking to upgrade the OS on our servers from Ubuntu 10.04 LTS to Ubuntu 12.04 LTS. Unfortunately, it seems that the latency to run a thread that has become runnable has significantly increased from the 2.6 kernel to the 3.2 kernel. In fact the latency numbers we are getting are hard to belie...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
__attribute____attribute__instructionsGNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可以设置函数属性（Function Attribute）、变量属性（Variabl GNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可...
How can I tell jackson to ignore a property for which I don't have control over the source code?
...ties has a GeometryCollection that throws an exception when you call "getBoundary" (the why of this is another book, for now let's say this is the way it works).
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