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How can you determine how much disk space a particular MySQL table is taking up?
...length) tablesize
FROM information_schema.tables
WHERE table_schema='mydb' and table_name='mytable';
KILOBYTES
SELECT (data_length+index_length)/power(1024,1) tablesize_kb
FROM information_schema.tables
WHERE table_schema='mydb' and table_name='mytable';
MEGABYTES
SELECT (data_length+index_len...
How to change ProgressBar's progress indicator color in Android
.... This is from the layout that has the progress bar:
<ProgressBar
android:id="@+id/ProgressBar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:indeterminate="false"
android:maxHeight="10dip...
Selecting multiple columns in a pandas dataframe
...1 = df[['a', 'b']]
Alternatively, if it matters to index them numerically and not by their name (say your code should automatically do this without knowing the names of the first two columns) then you can do this instead:
df1 = df.iloc[:, 0:2] # Remember that Python does not slice inclusive of the ...
Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
I've just started learning Ruby and Ruby on Rails and came across validation code that uses ranges:
5 Answers
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Strings as Primary Keys in SQL Database [closed]
I am not very familiar with databases and the theories behind how they work. Is it any slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers?
...
Git: can I suppress listing of 'modified content'/dirty submodule entries in status, diff, etc?
...module within the .gitmodules file.
Just today I encountered this problem and immediately wrote an article in my blog about it after finding a solution: How to ignore changes in git submodules
The gist of it:
Once you added a submodule there will be a file named .gitmodules in the root of your...
How do I pass a class as a parameter in Java?
Is there any way to pass class as a parameter in Java and fire some methods from that class?
10 Answers
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Disable HttpClient logging
...egration test suite. The default logging for HttpClient is extremely noisy and I can't seem to turn it off. I've tried following the instructions here but none of them make any difference.
...
Can you use Microsoft Entity Framework with Oracle? [closed]
...erly OraDirect .NET) now provides support for Entity Framework v4 Release Candidate devart.com/blogs/dotconnect/?p=2062
– Devart
Apr 2 '10 at 11:16
...
Eclipse jump to closing brace
...
Place the cursor next to an opening or closing brace and punch Ctrl + Shift + P to find the matching brace. If Eclipse can't find one you'll get a "No matching bracket found" message.
edit: as mentioned by Romaintaz below, you can also get Eclipse to auto-select all of the cod...