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On duplicate key ignore? [duplicate]
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Would suggest NOT using INSERT IGNORE as it ignores ALL errors (ie its a sloppy global ignore).
Instead, since in your example tag is the unique key, use:
INSERT INTO table_tags (tag) VALUES ('tag_a'),('tab_b'),('tag_c') ON DUPLICATE KEY UPDATE tag=tag;
on duplicate key pro...
How to empty (clear) the logcat buffer in Android [duplicate]
...rooted buffers (main, system ..etc).
adb logcat -c
If you want to clear all the buffers (like radio, kernel..etc), Please use the following commands
adb root
adb logcat -b all -c
or
adb root
adb shell logcat -b all -c
Use the following commands to know the list of buffers that device supp...
BeautifulSoup getting href [duplicate]
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You can use find_all in the following way to find every a element that has an href attribute, and print each one:
from BeautifulSoup import BeautifulSoup
html = '''<a href="some_url">next</a>
<span class="class"><a href...
How can I trim all strings in an Array? [duplicate]
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@ime: that's what it expected to return actually. Garbage-in garbage-out paradigm in action.
– zerkms
Jun 17 '14 at 10:50
4
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How to create user for a db in postgresql? [closed]
I have installed PostgreSQL 8.4 on my CentOS server and connected to root user from shell and accessing the PostgreSQL shell.
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Create a submodule repository from a folder and keep its git commit history
...ommit it
git filter-branch --subdirectory-filter <directory 1> -- --all
You should now have a git repository with the files from directory 1 in your repo's root with all related commit history.
Step 4
Create your online repository and push your new repository!
git remote add origin <...
Epoch vs Iteration when training neural networks
...twork terminology:
one epoch = one forward pass and one backward pass of all the training examples
batch size = the number of training examples in one forward/backward pass. The higher the batch size, the more memory space you'll need.
number of iterations = number of passes, each pass using [bat...
Find all files with name containing string
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Use find:
find . -maxdepth 1 -name "*string*" -print
It will find all files in the current directory (delete maxdepth 1 if you want it recursive) containing "string" and will print it on the screen.
If you want to avoid file containing ':', you can type:
find . -maxdepth 1 -name "*string*...