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How to Store Historical Data
... records will go in FOO_Hist. Many different fields in FOO can be updated by the user, so I want to keep an accurate account of everything updated. FOO_Hist holds the exact same fields as FOO with the exception of an auto-incrementing HIST_ID. Every time FOO is updated, I perform an insert statem...
What linux shell command returns a part of a string? [duplicate]
... use. -f changes it from counting characters to counting fields, delimited by TAB by default or by any character you specify following -d. So to get your input string up until but not including the first slash (exactly what I wanted), you can do: cut -d/ -f-1, which can be read as "cut on substrings...
Spark java.lang.OutOfMemoryError: Java heap space
...park.executor.memory=6g. Make sure you're using as much memory as possible by checking the UI (it will say how much mem you're using)
Try using more partitions, you should have 2 - 4 per CPU. IME increasing the number of partitions is often the easiest way to make a program more stable (and often f...
When to encode space to plus (+) or %20?
...ck and forth, and since the + is a reserved character it will be preserved by the browser.
– Dave Van den Eynde
Jun 24 '14 at 14:22
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How can you detect the version of a browser?
... IMO, the correct result would be Opera 12.14 which would be accomplished by my suggestion.
– Kirk Woll
Mar 9 '14 at 16:19
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How to work around the stricter Java 8 Javadoc when using Maven
You'll quickly realize that JDK8 is a lot more strict (by default) when it comes to Javadoc. ( link - see last bullet point)
...
Difference between assertEquals and assertSame in phpunit?
...ly, but according to the docs:
assertSame
Reports an error identified by $message if the two variables $expected and $actual do not have the same type and value."
And as you can see in the example below the above excerpt, they are passing '2204' and 2204, which will fail using assertSame beca...
Failed to serialize the response in Web API with Json
... an Entity. An entity refers to an object in the DB that can be retrieved by a unique id. You are returning all the User entities from your database. I'm suggesting that you create a new class called "UserModel" and for each of the User entities you get from the database, create a new instance of...
Why is AJAX returning HTTP status code 0?
...ere when using <button onclick="">submit</button>. Then solved by using <input type="button" onclick="">
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Most useful NLog configurations [closed]
...u great flexibility in the configuration of the loggers (control globally, by namespace, by specific logger name, etc).
Use non-classname-based loggers where appropriate. Maybe you have one function for which you really want to control the logging separately. Maybe you have some cross-cutting log...