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Difference between partition key, composite key and clustering key in Cassandra?
I have been reading articles around the net to understand the differences between the following key types. But it just seems hard for me to grasp. Examples will definitely help make understanding better.
...
How can I check file size in Python?
....stat() is that you can stat() a file even if you don't have permission to read it. Obviously the seek/tell approach won't work unless you have read permission.
Edit 2
At Jonathon's suggestion, here's a paranoid version. (The version above leaves the file pointer at the end of the file, so if you...
Detect & Record Audio in Python
... # little endian, signed short
snd_data = array('h', stream.read(CHUNK_SIZE))
if byteorder == 'big':
snd_data.byteswap()
r.extend(snd_data)
silent = is_silent(snd_data)
if silent and snd_started:
num_silent += 1
elif no...
R script line numbers at error?
...o add it to the answer here rather than only providing a link to another thread.
– cryo111
Jul 12 '18 at 11:16
1
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Significance of a .inl file in C++
...way of structuring your code that provides a hint to the humans that might read it.
I use .inl files in two cases:
For definitions of inline functions.
For definitions of function templates.
In both cases, I put the declarations of the functions in a header file, which is included by other file...
NodeJS: Saving a base64-encoded image to disk
...
this is my full solution which would read any base64 image format and save it in the proper format in the database:
// Save base64 image to disk
try
{
// Decoding base-64 image
// Source: http://stackoverflow.com/questions/20267939/n...
What is the best way to force yourself to master vi? [closed]
A good while ago, I read an article by the creator of viemu , clearing up a lot of the misconceptions about vi, as well as explaining why it's a good idea (and why it's been very popular for the last 30 years+). The same guy also has a great set of graphical cheat sheets that teach the basics a f...
How to extract text from a PDF? [closed]
...e "grep" with impunity on my pdf files. Since I can grep better than I can read, it's a win! (:-) Upvote.
– David Elson
Aug 8 '15 at 22:54
1
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How are ssl certificates verified?
...rchased one has been signed by a Certificate Authority that your browser already knows about. In other words, your browser can easily validate the authenticity of a purchased certificate.
Unfortunately this has led to a common misconception that self-signed certificates are inherently less secure t...
Java: getMinutes and getHours
...he java.time package which is finally a worthwhile Java standard solution! Read this article, Java SE 8 Date and Time, for a good amount of information on java.time outside of hours and minutes.
In particular, look at the LocalDateTime class.
Hours and minutes:
LocalDateTime.now().getHour();
Loc...