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Insert, on duplicate update in PostgreSQL?
Several months ago I learned from an answer on Stack Overflow how to perform multiple updates at once in MySQL using the following syntax:
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How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
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Update for those using Python3:
You can simply use conda install mysqlclient to install the libraries required to use MySQLdb as it currently exists. The following SO question was a helpful clue: Python 3 ImportError: No module name...
How can I add or update a query string parameter?
... not present or if it present, update the current value? I am using jquery for my client side development.
27 Answers
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How to use dashes in HTML-5 data-* attributes in ASP.NET MVC
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Update: MVC 3 and newer versions have built-in support for this. See JohnnyO's highly upvoted answer below for recommended solutions.
I do not think there are any immediate helpers for achieving this, but I do have two ideas for you to try:
// 1: pass dictionary instead of anon...
TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
... in its post_save signal, I'm saving some models that have the user as the foreign key.
10 Answers
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How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
...nifest-API, which is deprecated as of Scala 2.10. Please see answers below for more current solutions.
Scala was defined with Type Erasure because the Java Virtual Machine (JVM), unlike Java, did not get generics. This means that, at run time, only the class exists, not its type parameters. In the ...
Get element inside element by class and ID - JavaScript
Alright, I've dabbled in JavaScript before, but the most useful thing I've written is a CSS style-switcher. So I'm somewhat new to this. Let's say I have HTML code like this:
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Efficiently convert rows to columns in sql server
I'm looking for an efficient way to convert rows to columns in SQL server, I heard that PIVOT is not very fast, and I need to deal with lot of records.
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Vertical (rotated) label in Android
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sorry for my basic question, If I got a TextView (in an XML file) and I want to rotate it, how do I have to call VerticalTextView class?
– blackst0ne
Feb 15 '15 at 10:21
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Right way to reverse pandas.DataFrame?
...ly:
data.iloc[::-1]
will reverse your data frame, if you want to have a for loop which goes from down to up you may do:
for idx in reversed(data.index):
print(idx, data.loc[idx, 'Even'], data.loc[idx, 'Odd'])
or
for idx in reversed(data.index):
print(idx, data.Even[idx], data.Odd[idx]...