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How to run SQL script in MySQL?
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If you’re at the MySQL command line mysql> you have to declare the SQL file as source.
mysql> source \home\user\Desktop\test.sql;
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Why does PEP-8 specify a maximum line length of 79 characters? [closed]
...of PEP-8 is to stop people arguing about inconsequential formatting rules, and get on with writing good, consistently formatted code. Sure, no one really thinks that 79 is optimal, but there's no obvious gain in changing it to 99 or 119 or whatever your preferred line length is. I think the choices ...
CORS - What is the motivation behind introducing preflight requests?
...ng-the-rules thing.
Preflight requests have nothing to do with security, and they have no bearing on applications that are being developed now, with an awareness of CORS. Rather, the preflight mechanism benefits servers that were developed without an awareness of CORS, and it functions as a sanity...
What are forward declarations in C++?
...really just allows the compiler to do a better job of validating the code, and allows it to tidy up loose ends so it can produce a neat looking object file. If you didn't have to forward declare things, the compiler would produce an object file that would have to contain information about all the po...
Using .text() to retrieve only text not nested in child tags
...u suggest a more efficient method? This is appealing because it is "clean" and "short". What do you suggest?
– derekmx271
Dec 4 '15 at 19:45
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How to break out of nested loops?
If I use a break statement, it will only break inner loop and I need to use some flag to break the outer loop. But if there are many nested loops, the code will not look good.
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Why is it said that “HTTP is a stateless protocol”?
...ocket. That is solely a performance thing, intended to minimize the time/bandwidth that'd otherwise be spent reestablishing a connection for each request.
As far as HTTP is concerned, they are all still separate requests and must contain enough information on their own to fulfill the request. Tha...
Why are data transfer objects (DTOs) an anti-pattern?
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Some projects have all data twice. Once as domain objects, and once as data transfer objects.
This duplication has a huge cost, so the architecture needs to get a huge benefit from this separation to be worth it.
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In CMake, how can I test if the compiler is Clang?
We have a set of cross-platform CMake build scripts , and we support building with Visual C++ and GCC .
5 Answers
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How to 'bulk update' with Django?
...it must be on an original QuerySet so you'll need to lean on the .filter() and .exclude() methods.
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