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Convert string to nullable type (int, double, etc…)
...ately, much of the data is in strings, where it should be int's or double, etc...
16 Answers
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Unix command to find lines common in two files
...in the array (i.e. file1). The lines that are found will be printed in the order in which they appear in file2.
Note that the comparison in arr uses the entire line from file2 as index to the array, so it will only report exact matches on entire lines.
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Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
...ock, for example), not an Inet one, no matter if localhost is declared in /etc/hosts or not. However, when you use an ip address instead, even 127.0.0.1, you force mysql to open an Inet socket instead.
– Fran Marzoa
Nov 19 '14 at 13:57
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How does having a dynamic variable affect performance?
...18ms
LazyILEmitted: 14.3483ms
So while using the dynamic keyword takes an order of magnitude longer than calling the method directly, it still manages to complete the operation a million times in about 50 milliseconds, making it far faster than reflection. If the method we call were trying to do so...
Disable password authentication for SSH [closed]
...
In file /etc/ssh/sshd_config
# Change to no to disable tunnelled clear text passwords
#PasswordAuthentication no
Uncomment the second line, and, if needed, change yes to no.
Then run
service ssh restart
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How can I do SELECT UNIQUE with LINQ?
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The Distinct() is going to mess up the ordering, so you'll have to the sorting after that.
var uniqueColors =
(from dbo in database.MainTable
where dbo.Property == true
select dbo.Color.Name).Distinct().OrderBy(n...
Get all object attributes in Python? [duplicate]
Is there a way to get all attributes/methods/fields/etc. of an object in Python?
4 Answers
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gradle build fails on lint task
... // if true, show all locations for an error, do not truncate lists, etc.
showAll true
// Fallback lint configuration (default severities, etc.)
lintConfig file("default-lint.xml")
// if true, generate a text report of issues (false by default)
textRepor...
Java packages com and org
... by non-profit organizations or for open source code, such as apache, w3c, etc.
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How do I preview emails in Rails?
...tes contain any dynamic data, it won't work. E.g. suppose your email is an order receipt and within it you print out @order.total_price - using the previous method the @order variable will be nil.
Here's a little recipe I use:
First, since this email preview functionality is definitely for interna...