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What is the recommended way to delete a large number of items from DynamoDB?
...
The link to BatchWriteItem is now docs.aws.amazon.com/amazondynamodb/latest/APIReference/…
– Tony
Jan 10 '17 at 15:18
4
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Apply CSS style attribute dynamically in Angular JS
...t in the docs, but I couldn't see how to translate that to multiple rules, now I can see that it's not normal css syntax but object syntax.
– jonhobbs
Jan 26 '14 at 14:36
add ...
How do you increase the max number of concurrent connections in Apache?
...2 process can service only 50 concurrent connections/clients i.e. 25x2=50. Now if more concurrent users comes, then another child process will start, that can service another 25 users. But how many child processes can be started is controlled by ServerLimit parameter, this means that in the configur...
How to solve javax.net.ssl.SSLHandshakeException Error?
...should be able to tell you exactly what to do for your specific browser.)
Now that you have the certificate saved in a file, you need to add it to your JVM's trust store. At $JAVA_HOME/jre/lib/security/ for JREs or $JAVA_HOME/lib/security for JDKs, there's a file named cacerts, which comes with Jav...
Summarizing multiple columns with dplyr? [duplicate]
...x. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R.
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Passing an integer by reference in Python
...ide your function you have an object -- You're free to mutate that object (if possible). However, integers are immutable. One workaround is to pass the integer in a container which can be mutated:
def change(x):
x[0] = 3
x = [1]
change(x)
print x
This is ugly/clumsy at best, but you're not g...
Get path of executable
...os.html to select the method is straightforward.
– Clifford
Oct 7 '09 at 15:02
5
So is this what ...
How to disable scrolling temporarily?
I'm using the scrollTo jQuery plugin and would like to know if it is somehow possible to temporarily disable scrolling on the window element through Javascript? The reason I'd like to disable scrolling is that when you scroll while scrollTo is animating, it gets really ugly ;)
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What are file descriptors, explained in simple terms?
...dded great stuff. I will add just my 2 cents.
According to Wikipedia we know for sure: a file descriptor is a non-negative integer. The most important thing I think is missing, would be to say:
File descriptors are bound to a process ID.
We know most famous file descriptors are 0, 1 and 2.
0 co...
Find most frequent value in SQL column
...occurrence` DESC
LIMIT 1;
Replace column and my_table. Increase 1 if you want to see the N most common values of the column.
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