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NoSQL (MongoDB) vs Lucene (or Solr) as your database
...e, but Guardian has made some headway and summarize this in an excellent slide-deck, but they too are non-committal on totally jumping on Solr bandwagon and "investigating" combining Solr with CouchDB.
Finally, I will offer our experience, unfortunately cannot reveal much about the business-case. W...
What is managed or unmanaged code in programming?
...s some text from MSDN about unmanaged code.
Some library code needs to call into unmanaged code (for example, native code APIs, such as Win32). Because this means going outside the security perimeter for managed code, due caution is required.
Here is some other complimentary explication about ...
Is there a difference between using a dict literal and a dict constructor?
...the finds the builtin, so you can switch the behaviour by defining a local called dict for example although I can't think of anywhere this would be a good idea apart from maybe when debugging
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“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP
...
Open phpMyAdmin in a browser and log in as root.
Create a database called phpmyadmin
Create a user called pma and set the "host" to the hostname or IP address of your web server (if the web server and MySQL are on the same box use localhost), make a note of the password, and grant the new us...
Find all storage devices attached to a Linux machine [closed]
...2 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/xvda1 doesn't contain a valid partition table
Disk /dev/xvda2: 365.0 GB, 365041287168 bytes
255 heads, 63 sectors/track, 44380 cylinders, total 712971264 sectors
Units = sectors of 1 * 512 =...
Delete commits from a branch in Git
...before head.
Or, you could look at the output of git log, find the commit id of the commit you want to back up to, and then do this:
git reset --hard <sha1-commit-id>
If you already pushed it, you will need to do a force push to get rid of it...
git push origin HEAD --force
However, i...
How to mock ConfigurationManager.AppSettings with moq
...pending on your purism and interpretations - this could instead or also be called a Delegate Proxy or Adapter.
– Joshua Enfield
Apr 4 '12 at 18:24
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Why is `[` better than `subset`?
...ect 'cyl' not found
because R no longer "knows" where to find the object called 'cyl'. He also points out the truly bizarre stuff that can happen if by chance there is an object called 'cyl' in the global environment:
cyl <- 4
subscramble(mtcars, cyl == 4)
cyl <- sample(10, 100, rep = T)
s...
How to fix 'android.os.NetworkOnMainThreadException'?
...ava.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
– Dhruv Tyagi
Aug 30 '16 at 11:08
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When to use -retainCount?
...e a retainCount of 1. It doesn't. Again, it's 1152921504606846975.
Basically, since anything can retain an object (and therefore alter its retainCount), and since you don't have the source to most of the code that runs an application, an object's retainCount is meaningless.
If you're trying to ...