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What is the MySQL JDBC driver connection string?
...rking link: dev.mysql.com/doc/connector-j/en/…
– hexicle
Feb 23 '16 at 2:39
1
If I have three p...
How might I convert a double to the nearest integer value?
...ope, that's by design. By default, Math.Round will round midpoint numbers (x + .5) to the nearest even number. If you want a different behaviour, you have to specify it via a flag. msdn.microsoft.com/en-us/library/system.midpointrounding.aspx
– nickf
Sep 24 '12...
Is there a way to pass optional parameters to a function?
...d an optional parameter.
First, you can use special formal parameter syntax *. If the function definition has a formal parameter preceded by a single *, then Python populates that parameter with any positional parameters that aren't matched by preceding formal parameters (as a tuple). If the functi...
Setting direction for UISwipeGestureRecognizer
...answer from Apple saying that the behavior works as was intended.
So for example in a table view you can swipe left or right in a table view cell to trigger 'delete' (this would have directions of the swipe gesture set to left and right)
This means that the original workaround is the way it's supp...
Double exclamation points? [duplicate]
...cause 0 === false already, so why go through the conversion?" Your answer explains that it ensures a Boolean type, but the OP already knew that; the question is, what's the point of ensuring a Boolean type?
– ruakh
Feb 14 '12 at 21:52
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Tainted canvases may not be exported
...
Post your images to a site that supports cross-domain sharing (like dropbox.com). Be sure you put your images in dropbox's public folder and also set the cross origin flag when downloading the image (var img=new Image(); img.crossOrigin="anonymous" ...)
Install a webserver on your development comp...
How to remove all of the data in a table using Django
...del._meta.db_table
sql = "DROP TABLE %s;" % (table_name, )
cursor.execute(sql)
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How do I purge a linux mail box with huge number of emails? [closed]
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It is not a good praxis data manipulation from outside an application. If there is an option or command that can do the job, it is better to use it. As @timaschew answered, you can use the ‘d’ command inside the mail tool.
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Does the join order matter in SQL?
...same as b LEFT JOIN a
Outer joins are not associative either, so in your examples which involve both (commutativity and associativity) properties:
a LEFT JOIN b
ON b.ab_id = a.ab_id
LEFT JOIN c
ON c.ac_id = a.ac_id
is equivalent to:
a LEFT JOIN c
ON c.ac_id = a.ac_id
LEFT JOIN...
Decimal number regular expression, where digit after decimal is optional
I need a regular expression that validates a number, but doesn't require a digit after the decimal.
ie.
15 Answers
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