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Split output of command by columns using Bash?
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10 Answers
10
Active
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Why does DEBUG=False setting make my django Static Files Access fail?
...ted sneaking in the moment I wanted to render my own beautiful and custom 404.html and 500.html pages.
14 Answers
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How to check if a string contains only digits in Java [duplicate]
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Try
String regex = "[0-9]+";
or
String regex = "\\d+";
As per Java regular expressions, the + means "one or more times" and \d means "a digit".
Note: the "double backslash" is an escape sequence to get a single backslash - therefore, \\d i...
Read a file in Node.js
... console.log('received data: ' + data);
response.writeHead(200, {'Content-Type': 'text/html'});
response.write(data);
response.end();
} else {
console.log(err);
}
});
Thanks to dc5.
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What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...more classes that implements the interface java.sql.Driver.
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Any JDBC 4.0 drivers that are found in your class path are automatically loaded. (However, you must manually load any drivers prior to JDBC 4.0 with the method Class.forName.)
Further reading (read: questions this is a dup of)
What pu...
How do you delete a column by name in data.table?
...column foo from the data.table df3:
# Method 1 (and preferred as it takes 0.00s even on a 20GB data.table)
df3[,foo:=NULL]
df3[, c("foo","bar"):=NULL] # remove two columns
myVar = "foo"
df3[, (myVar):=NULL] # lookup myVar contents
# Method 2a -- A safe idiom for excluding (possibly multiple)
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BAT file: Open new cmd window and execute a command in there
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answered Jul 9 '12 at 10:44
arossaross
4,44511 gold badge2222 silver badges3030 bronze badges
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How to declare a variable in MySQL?
...lize a variable using SET or SELECT statement:
SET @start = 1, @finish = 10;
or
SELECT @start := 1, @finish := 10;
SELECT * FROM places WHERE place BETWEEN @start AND @finish;
User variables can be assigned a value from a limited set of data
types: integer, decimal, floating-point, binar...
OwinStartup not firing
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edited Sep 10 '19 at 12:41
Uwe Keim
35.7k3636 gold badges153153 silver badges255255 bronze badges
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Are C++ enums signed or unsigned?
... an input by checking that it is = your min value (assuming you started at 0 and incremented by 1)?
9 Answers
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