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How to drop a table if it exists?
... modern RDBMS servers provide, at least, basic INFORMATION_SCHEMA support, including: MySQL, Postgres, Oracle, IBM DB2, and Microsoft SQL Server 7.0 (and greater).
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How to prevent scrollbar from repositioning web page?
...t;
</body>
The trick is that 100vw represents 100% of the viewport including the scrollbar. If you subtract 100%, which is the available space without the scrollbar, you end up with the width of the scrollbar or 0 if it is not present. Creating a padding of that width on the left will simula...
Signed versus Unsigned Integers
... universal today) in use today is two's complement. Other representations include one's complement (quite rare) and signed magnitude (vanishingly rare - probably only used on museum pieces) which is simply using the high bit as a sign indicator with the remain bits representing the absolute value o...
what is the difference between 'transform' and 'fit_transform' in sklearn
...transform(X_test)
Imagine we are fitting a tokenizer, if we fit X we are including testing data into the tokenizer, but I have seen this error many times!
The correct is to fit ONLY with X_train, because you don't know "your future data" so you cannot use X_test data for fitting anything!
Then y...
BroadcastReceiver with multiple filters or multiple BroadcastReceivers?
... what do you exactly mean by "to do this dynamically"? Simply include all the action strings inside your intent-filters and perform if-else to identify your required action strings.
– waqaslam
May 9 '13 at 10:22
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Determine if an HTML element's content overflows
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+1. This works on modern browsers (including at least Chrome 40 and other current version browsers from the time of this writing).
– L0j1k
Feb 27 '15 at 19:07
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Overriding id on create in ActiveRecord
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Worked for me as well; wasn't necessary to include a separate field.
– shalott
Mar 23 '14 at 14:56
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How to split a large text file into smaller files with equal number of lines?
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split (from GNU coreutils, since version 8.8 from 2010-12-22) includes the following parameter:
-n, --number=CHUNKS generate CHUNKS output files; see explanation b
How to show changed file name only with git log? [duplicate]
... That's pretty much exactly what I was looking for - but it does include the commit message for me - as I wanted to pipe the output, that wasn't optimal.
– bytepusher
Jan 1 at 10:51
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What is a .pid file and what does it contain?
... material may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.
– Toby Speight
Jan 15 '18 at 9:21
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