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What good are SQL Server schemas?
I'm no beginner to using SQL databases, and in particular SQL Server. However, I've been primarily a SQL 2000 guy and I've always been confused by schemas in 2005+. Yes, I know the basic definition of a schema, but what are they really used for in a typical SQL Server deployment?
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Use of ~ (tilde) in R programming Language
I saw in a tutorial about regression modeling the following command :
2 Answers
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ImportError: No module named PIL
I use this command in the shell to install PIL:
22 Answers
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How to ensure a form field is submitted when it is disabled?
...b server? Isn't it the client that renders the page with the select field, and thus in case of conflict like that it would be the client that decides whether to send the value to the server or not?
– Ilari Kajaste
Jul 22 '11 at 15:38
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How do I check if a string contains another string in Objective-C?
...");
}
The key is noticing that rangeOfString: returns an NSRange struct, and the documentation says that it returns the struct {NSNotFound, 0} if the "haystack" does not contain the "needle".
And if you're on iOS 8 or OS X Yosemite, you can now do: (*NOTE: This WILL crash your app if this code ...
Drop rows with all zeros in pandas data frame
I can use pandas dropna() functionality to remove rows with some or all columns set as NA 's. Is there an equivalent function for dropping rows with all columns having value 0?
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Integrating MySQL with Python in Windows
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Download page for python-mysqldb. The page includes binaries for 32 and 64 bit versions of for Python 2.5, 2.6 and 2.7.
There's also discussion on getting rid of the deprecation warning.
UPDATE: This is an old answer. Currently, I would recommend using PyMySQL. It's pure python, so it supp...
The input is not a valid Base-64 string as it contains a non-base 64 character
I have a REST service that reads a file and sends it to another console application after converting it to Byte array and then to Base64 string. This part works, but when the same stream is received at the application, it gets manipulated and is no longer a valid Base64 string. Some junk characters ...
How can I use 'Not Like' operator in MongoDB
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This seems to be the same case with $ne and $regex. Can anyone confirm this, or at least add to it?
– DBrown
Jan 25 '17 at 5:42
add a commen...
Postgres unique constraint vs index
As I can understand documentation the following definitions are equivalent:
8 Answers
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