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How to select the nth row in a SQL database table?
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There are ways of doing this in optional parts of the standard, but a lot of databases support their own way of doing it.
A really good site that talks about this and other things is http://troels.arvin.dk/db/rdbms/#select-limit.
Basically, PostgreSQL and MySQL supports the non-...
How to get maximum value from the Collection (for example ArrayList)?
... list. E.g. suppose the arrayList stored values are : 10, 20, 30, 40, 50 and the max
value would be 50 .
15 Answers
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
... a bash script for several subprocesses spawned from that script to finish and return exit code !=0 when any of the subprocesses ends with code !=0 ?
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How to wait for a number of threads to complete?
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You put all threads in an array, start them all, and then have a loop
for(i = 0; i < threads.length; i++)
threads[i].join();
Each join will block until the respective thread has completed. Threads may complete in a different order than you joining them, but that's n...
How to create a GUID/UUID in Python
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The uuid module, in Python 2.5 and up, provides RFC compliant UUID
generation. See the module docs and the RFC for details. [source]
Docs:
Python 2: http://docs.python.org/2/library/uuid.html
Python 3:
https://docs.python.org/3/library/uuid.html
E...
How to dynamically load a Python class
...oc.safeimport function. Here are the docs for that:
"""Import a module; handle errors; return None if the module isn't found.
If the module *is* found but an exception occurs, it's wrapped in an
ErrorDuringImport exception and reraised. Unlike __import__, if a
package path is specified, the modu...
lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...境，相关接口如下：
//创建lua运行上下文
lua_State* luaL_newstate(void) ;
//加载lua脚本文件
int luaL_loadfile(lua_State *L, const char *filename);
lua和c/c++的数据交互通过"栈"进行 ,操作数据时，首先将数据拷贝到"栈"上，然后获取数据，栈中...
How do I get the n-th level parent of an element in jQuery?
...parents().eq(0); // "Father".
$('#element').parents().eq(2); // "Great-grandfather".
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File is universal (three slices), but it does not contain a(n) ARMv7-s slice error for static librar
I upgraded Xcode version and when using external static libraries, I get this message:
8 Answers
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How can I efficiently download a large file using Go?
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Note that io.Copy reads 32kb (maximum) from input and writes them to output, then repeats. So don't worry about memory.
– Moshe Revah
Jul 28 '12 at 0:11
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