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Why should I use document based database instead of relational database?
...seen any database schema in two years time resemble the original schema we started with... so everything equal (which it isn't...), you should always use a schemaless database = a document-oriented one; which i think is a rather misleading name...
– ᆼᆺᆼ
J...
Show the progress of a Python multiprocessing pool imap_unordered call?
...[]
pbar = ProgressBar(widgets=[SimpleProgress()], maxval=len(dummy_args)).start()
r = [pool.apply_async(my_function, (x,), callback=results.append) for x in dummy_args]
while len(results) != len(dummy_args):
pbar.update(len(results))
sleep(0.5)
pbar.finish()
print results
Basically, yo...
Get button click inside UITableViewCell
...
This solution runs into problems when you start inserting and deleting rows. The tag is not updated when rows are shifted. Instead of keeping a reference to the row. It may be better to keep a reference to a unique object id.
– Vincent Cheong
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Difference between Key, Primary Key, Unique Key and Index in MySQL
... through a phone book directory to find someone by the last name: We don't start searching through the directory from cover to cover, as long we inserted the information in some order that we can use to skip quickly to the 'S' pages.
Primary keys and unique keys are similar. A primary key is a colu...
Android Writing Logs to text File
...he documentation is pretty poor. All they need to add is a this is a quick start tutorial.
Here is a quick tutorial I found.
Add the following static variable in your main Activity:
private static final Logger logger = LoggerFactory.getLogger();
Add the following to your onCreate() method:
Pro...
Xcode stuck at “Your application is being uploaded”
...h of above methods were followed but was stucking in "Authentication..". Restarted the mac book and it worked. When you restart, the previous itunesconnect connection (which you might have opened in browser prior to submit your app) are reset which allows restarted mac to easily authenticate iTunes ...
Generate .pem file used to set up Apple Push Notifications
... just installed. If unsure which certificate is the correct one, it should start with "Apple Production IOS Push Services:" followed by your app's bundle ID.
Step 8: Expand the certificate, you should see the private key with either your name or your company name. Select both items by using the "...
How can you iterate over the elements of an std::tuple?
... Not as written.. You could make a version with the indexing flipped - start at I=sizeof...(Tp) and count down. Then supply a maximum number of args explicitly. You could also make a version that broke on a tag type, say break_t. Then you would put an object of that tag type in your tuple whe...
Random data in Unit Tests?
...le". However, a well written randomized test will capture the seed used to start the randomized seed and output it on failure. In addition to allowing you to repeat the test by hand, this allows you to trivially create new test which test the specific issue by hardcoding the seed for that test. Of c...
Is an HTTPS query string secure?
... certificates to your client.
Your client will verify the certificates and start exchanging a shared secret key for your session.
After successfully establishing a secure connection, only then will your query parameters be sent via the secure connection.
Therefore, you won't expose sensitive data....