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How to randomly select rows in SQL?
... a table "customerNames" which has two columns "Id" and "Name" and approx. 1,000 results.
11 Answers
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C/C++ macro string concatenation
Is it possible to concatenate have STR3 == "s1"?
You can do this by passing args to another Macro function. But is there a direct way?
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How can I selectively escape percent (%) in Python strings?
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641
>>> test = "have it break."
>>> selectiveEscape = "Print percent %% in sentenc...
Enable 'xp_cmdshell' SQL Server
... of the xp_cmdshell MSDN docs:
http://msdn.microsoft.com/en-us/library/ms190693.aspx:
-- To allow advanced options to be changed.
EXEC sp_configure 'show advanced options', 1
GO
-- To update the currently configured value for advanced options.
RECONFIGURE
GO
-- To enable the feature.
EXEC sp_conf...
What is a lambda (function)?
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1101
Lambda comes from the Lambda Calculus and refers to anonymous functions in programming.
Why ...
How to subtract 30 days from the current datetime in mysql?
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313
SELECT * FROM table
WHERE exec_datetime BETWEEN DATE_SUB(NOW(), INTERVAL 30 DAY) AND NOW();
h...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
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189
Just to note that nginx has now support for Websockets on the release 1.3.13. Example of use:
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Get battery level and state in Android
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10 Answers
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jQuery.inArray(), how to use it right?
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751
inArray returns the index of the element in the array, not a boolean indicating if the item exis...
How do I base64 encode (decode) in C?
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16 Answers
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