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What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
... the tricky part is that you can't drop the foreign key using the column name, but instead you would have to find the name used to index it. To find that, issue the following select:
SHOW CREATE TABLE region;
This should show you the name of the index, something like this:
CONSTRAINT regio...
Insert all values of a table into another table in SQL
...trying to insert all values of one table into another. But the insert statement accepts values, but i would like it to accept a select * from the initial_Table. Is this possible?
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NSPredicate: filtering objects by day of NSDate property
...del with an NSDate property. I want to filter the database by day. I assume the solution will involve an NSPredicate , but I'm not sure how to put it all together.
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Age from birthdate in python
...h simpler considering that int(True) is 1 and int(False) is 0:
from datetime import date
def calculate_age(born):
today = date.today()
return today.year - born.year - ((today.month, today.day) < (born.month, born.day))
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Can I make a not submit a form?
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The default value for the type attribute of button elements is "submit". Set it to type="button" to produce a button that doesn't submit the form.
<button type="button">Submit</button>
In the words of the HTML Standard: "Does nothing."
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How can I declare and define multiple variables in one line using C++?
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Finding the mode of a list
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It seems to me that this would run in O(n**2). Does it?
– lirtosiast
Sep 24 '15 at 4:57
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Can unit testing be successfully added into an existing production project? If so, how and is it wor
...ven't the foggiest idea where to start in adding unit tests. What's making me consider this is that occasionally an old bug seems to resurface, or a bug is checked in as fixed without really being fixed. Unit testing would reduce or prevents these issues occuring.
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How to open a new window on form submit
...your form tag.
<form target="_blank" action="http://example.com"
method="post" id="mc-embedded-subscribe-form"
name="mc-embedded-subscribe-form" class="validate"
>
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A 'for' loop to iterate over an enum in Java
I have an enum in Java for the cardinal & intermediate directions:
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