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Which MySQL data type to use for storing boolean values
...e field internally as an integer where 'False'=0 and 'True'=1 based on the order the Enum is specified.
In MySQL 5+ you can use a BIT(1) field to indicate a 1-bit numeric type. I don't believe this actually uses any less space in the storage but again allows you to constrain the possible values to...
How to Right-align flex item?
... justify-content: space-between;
}
.a, .b, .c { background: #efefef; border: 1px solid #999; }
.b { text-align: center; }
<h2>With title</h2>
<div class="main">
<div class="a"><a href="#">Home</a></div>
<div class="b"><a href="#"&g...
How to extract the year from a Python datetime object?
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Select first 4 rows of a data.frame in R
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How can I check if a program exists from a Bash script?
...hich is usually a good thing since you probably check for its existence in order to actually use it.
As a simple example, here's a function that runs gdate if it exists, otherwise date:
gnudate() {
if hash gdate 2>/dev/null; then
gdate "$@"
else
date "$@"
fi
}
Alterna...
How to append text to an existing file in Java?
...her use java7 try-with-resources or put the close() in a finally block, in order to make sure that the file is closed in case of exception
– Svetlin Zarev
Jan 2 '14 at 10:44
1
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Installing Python 3 on RHEL
...opt/local, just add --prefix=/opt/local.
After the make install step: In order to use your new Python installation, it could be, that you still have to add the [prefix]/bin to the $PATH and [prefix]/lib to the $LD_LIBRARY_PATH (depending of the --prefix you passed)
...
How to highlight cell if value duplicate in same column for google spreadsheet?
...context, we don't know it's address OR content, and we need the content in order to compare with). The third parameter takes care for the formatting, and 4 returns the formatting INDIRECT() likes.
INDIRECT(), will take a cell reference and return its content. In this case, the current cell's conten...
The Concept of 'Hold space' and 'Pattern space' in sed
...en read and the hold space (containing all the previous lines in a reverse order) have been appended to the pattern space, pattern space is printed with p. As you have guessed, the above does exactly what the tac command does -- prints the file in reverse.
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Convert a date format in PHP
...iginalDate);
This code works for every date format.
You can change the order of replacement variables such $3-$1-$2 due to your old date format.
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