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SQL DELETE with INNER JOIN
...ey for both tables that make link,
in last line i have filtered the record by field to delete.
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How to change the value of attribute in appSettings section with Web.config transformation
...ust as we expected – the web.config appSettings were completely replaced by the values in web.release config. That was easy!
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Encrypt & Decrypt using PyCrypto AES 256
...some fixes and enhances the alignment of the key and secret phrase with 32 bytes and iv to 16 bytes:
import base64
import hashlib
from Crypto import Random
from Crypto.Cipher import AES
class AESCipher(object):
def __init__(self, key):
self.bs = AES.block_size
self.key = hash...
System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
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System.currentTimeMillis itself is not affected by time zone. Changing system time will affect System.nanotime in the same way as System.currentTimeMillis
– Viktor
Jun 27 '17 at 16:00
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What does the “>” (greater-than sign) CSS selector mean?
...lished between both elements.
Not selected
This p.some_class is contained by a blockquote within the div, rather than the div itself. Although this p.some_class is a descendant of the div, it's not a child; it's a grandchild.
Consequently, while div > p.some_class won't match this element, div p...
Auto reloading a Sails.js app on code changes?
...her like forever, nodemon, or something else...
Example
Install forever by running:
sudo npm install -g forever
Run it:
forever -w start app.js
To avoid infinite restart because Sails writes into .tmp folder, you can create a .foreverignore file into your project directory and put this cont...
How can I connect to Android with ADB over TCP? [closed]
...our device. Once you are done, you can disconnect from the adb tcp session by running:
adb disconnect 192.168.0.101:5555
You can find the IP address of a tablet in two ways:
Manual IP Discovery:
Go into Android's WiFi settings, click the menu button in the action bar (the vertical ellipsis), hit Ad...
Choosing between std::map and std::unordered_map [duplicate]
...n other indirect ways like: (1) Start iterating from the iterator returned by find(), or (2) existence of member functions like lower_bound().
Also, I think there is some difference in the worst case search complexity.
For map, it is O( lg N )
For unordered_map, it is O( N ) [This may happen when...
Difference between Bridge pattern and Adapter pattern
... similarities and realized their understanding could be further solidified by juxtaposing the two patterns. The line about bridge helping you to avoid winding up with Windows and Linux specific files was, at least for me, instrumental in understanding how the Bridge Pattern's "Implementor" (dofactor...
get list from pandas dataframe column
...fill your task, let me present several options.
Those are all one-liners by the way ;)
Starting with:
df
cluster load_date budget actual fixed_price
0 A 1/1/2014 1000 4000 Y
1 A 2/1/2014 12000 10000 Y
2 A 3/1/2014 36000 2000 Y
3 ...