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Run MySQLDump without Locking Tables

...erts in the case of MyISAM tables. For transactional tables such as InnoDB and BDB, --single-transaction is a much better option, because it does not need to lock the tables at all. For innodb DB: mysqldump --single-transaction=TRUE -u username -p DB ...
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Lightweight Java Object cache API [closed]

...or an example of creating an in memory cache. You can specify a max size, and a time to live. EHCache does offer some advanced features, but if your not interested in using them - don't. But it's nice to know they are there if your requirements ever change. Here is an in memory cache. Created i...
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Disable Automatic Reference Counting for Some Files

I have downloaded the iOS 5 SDK and found that ARC is a great feature of the new Apple compiler. For the time being, many third party frameworks don't support ARC. Could I use ARC for my new code and keep the current retain/release code unchanged? The ARC converter doesn't work here, because some fr...
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SQL statement to select all rows from previous day

... WHERE YourDate >= dateadd(day,datediff(day,1,GETDATE()),0) AND YourDate < dateadd(day,datediff(day,0,GETDATE()),0) share | improve this answer | follow ...
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What is the pythonic way to avoid default parameters that are empty lists?

... print(working_list) The docs say you should use None as the default and explicitly test for it in the body of the function. share | improve this answer | follow ...
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ImportError in importing from sklearn: cannot import name check_build

...Mannu Yes; Also for me on jupyter notebook, just restarting (shutting down and click-open again) that ipynb py-kernel worked without restarting all of the jupyter notebook. – Abhimanu Kumar May 2 '18 at 15:01 ...
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Bootstrap 3 jquery event for active tab change

...ying to fire a function when the tab changes of the bootstrap 3 tab/navbar and literally all suggestions google spat out were wrong/did not work. ...
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How to write trycatch in R

...t wrapped insided a function (unlike that # for the condition handlers for warnings and error below) }, error=function(cond) { message(paste("URL does not seem to exist:", url)) message("Here's the original error message:") message(cond...
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how to set “camera position” for 3d plots using python/matplotlib?

I'm learning how to use mplot3d to produce nice plots of 3d data and I'm pretty happy so far. What I am trying to do at the moment is a little animation of a rotating surface. For that purpose, I need to set a camera position for the 3D projection. I guess this must be possible since a surface can b...
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Minimizing NExpectation for a custom distribution in Mathematica

...a minimum requires either to set the first derivative of the function zero and solve for a solution. Since your function is quite complicated (and probably not differentiable), the second possibility is to do a numerical minimization, which requires many evaluations of your function. Ergo, it is ver...