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Parameterize an SQL IN clause
... not open to SQL injection. The only injected text into CommandText is not based on user input. It's solely based on the hardcoded "@tag" prefix, and the index of an array. The index will always be an integer, is not user generated, and is safe.
The user inputted values are still stuffed into param...
Git - Difference Between 'assume-unchanged' and 'skip-worktree'
...cally.
That last part is what I describe a typical content filter driver based on smudge/clean scripts.
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What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
...here that would be useful. As I explained, applying AsQueryable() is often based on misconception. But I'll let is simmer in the back of my head for a while and see if I can add some more coverage on that question.
– Gert Arnold
Aug 29 '19 at 11:16
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Get last field using awk substr
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Use the fact that awk splits the lines in fields based on a field separator, that you can define. Hence, defining the field separator to / you can say:
awk -F "/" '{print $NF}' input
as NF refers to the number of fields of the current record, printing $NF means printing ...
How to get TimeZone from android mobile?
... Most applications will use TimeZone.getDefault() which returns a TimeZone based
on the time zone where the program is running.
Ref: http://developer.android.com/reference/java/util/TimeZone.html
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Math.random() explanation
...etween the borders, gets relevant random value, and then shifts the answer based on the bottom border.
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git merge: apply changes to code that moved to a different file
...lement your changes. As user @digory doo wrote below, you can do git merge-base master local to find X.
---- X (move)-----CP----- (master)
\
`--A---B--- (local)
On this branch, issue the following renaming command:
git mv original.txt copy.txt
This renames the file. Note that co...
Which kind of pointer do I use when?
...variables is tied to the lifetime of the object. You choose smart pointers based on how the object is owned.
Note that ownership in a software system is separate from ownership as we would think of it outside of software. For example, a person might "own" their home, but that doesn't necessarily me...
Delete the first three rows of a dataframe in pandas
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df.drop(df.index[[0,2]])
Pandas uses zero based numbering, so 0 is the first row, 1 is the second row and 2 is the third row.
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How to explain callbacks in plain english? How are they different from calling one function from ano
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Often an application needs to execute different functions based upon its context/state. For this, we use a variable where we would store the information about the function to be called. According to its need the application will set this variable with the information about functi...