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MYSQL Dump only certain rows
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Just fix your --where option. It should be a valid SQL WHERE clause, like:
--where="date_pulled='2011-05-23'"
You have the column name outside of the quotes.
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How to avoid long nesting of asynchronous functions in Node.js
...rvation. Note that in JavaScript you can normally replace inline anonymous callback functions with named function variables.
The following:
http.createServer(function (req, res) {
// inline callback function ...
getSomeData(client, function (someData) {
// another inline callback func...
Non-Relational Database Design [closed]
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I think you have to consider that the non-relational DBMS differ a lot regarding their data model and therefore the conceptual data design will also differ a lot. In the thread Data Design in Non-Relational Databases of the NOSQL Google group the di...
print call stack in C or C++
Is there any way to dump the call stack in a running process in C or C++ every time a certain function is called? What I have in mind is something like this:
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Exception handling in R [closed]
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Basically you want to use the tryCatch() function. Look at help("tryCatch") for more details.
Here's a trivial example (keep in mind that you can do whatever you want with an error):
vari <- 1
tryCatch(print("passes"), er...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...A2B push [ebp+8] ; pvReserved
769B2A2E call _CoInitializeEx@8 ; CoInitializeEx(x,x)
769B2A33 pop ebp
769B2A34 retn 4
可以看到，其中的实现还是比较简单的，它只是简单地调用了CoInitializeEx，将...
Calling C/C++ from Python?
...is one of the more user-friendly libraries in Boost, for a simple function call API it is quite straightforward and provides boilerplate you'd have to write yourself. It's a bit more complicated if you want to expose an object-oriented API.
– jwfearn
Sep 28 '0...
Installing python module within code
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The officially recommended way to install packages from a script is by calling pip's command-line interface via a subprocess. Most other answers presented here are not supported by pip. Furthermore since pip v10, all code has been moved to pip._internal precisely in order to make it clear to use...
What is the difference between RDF and OWL? [closed]
... structure to triples. The most important thing RDF defines is a predicate called "rdf:type". This is used to say that things are of certain types. Everyone uses rdf:type which makes it very useful.
RDFS (RDF Schema) defines some classes which represent the concept of subjects, objects, predicates...
Best approach for designing F# libraries for use from both F# and C#
...and it should answer many of your questions.
When using F#, there are basically two kinds of libraries you can write:
F# library is designed to be used only from F#, so it's public interface is written in a functional style (using F# function types, tuples, discriminated unions etc.)
.NET library...