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What's invokedynamic and how do I use it?

...ep hearing about all the new cool features that are being added to the JVM and one of those cool features is invokedynamic. I would like to know what it is and how does it make reflective programming in Java easier or better? ...
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Why can't a text column have a default value in MySQL?

If you try to create a TEXT column on a table, and give it a default value in MySQL, you get an error (on Windows at least). I cannot see any reason why a text column should not have a default value. No explanation is given by the MySQL documentation. It seems illogical to me (and somewhat frustrati...
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How to create a simple proxy in C#?

I have downloaded Privoxy few weeks ago and for the fun I was curious to know how a simple version of it can be done. 10 An...
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A better similarity ranking algorithm for variable length strings

....com/articles/StrikeAMatch.html Simon has a Java version of the algorithm and below I wrote a PL/Ruby version of it (taken from the plain ruby version done in the related forum entry comment by Mark Wong-VanHaren) so that I can use it in my PostgreSQL queries: CREATE FUNCTION string_similarity(str...
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Fastest Way of Inserting in Entity Framework

... for example 100 records. Call SaveChanges() after for example 100 records and dispose the context and create a new one. Disable change detection For bulk inserts I am working and experimenting with a pattern like this: using (TransactionScope scope = new TransactionScope()) { MyDbContext con...
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Sample random rows in dataframe

...propriate function that would return a specified number of rows picked up randomly without replacement from a data frame in R language? Can anyone help me out? ...
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How to simulate a higher resolution screen? [closed]

...I'm wrong, simply create an iframe with style="desired width & height" and src="your/test.site" as the only child of <body>. Should display the site as if the resolution was the specified width/height and result in scroll bars to examine it. Not as convenient as using a third party, havi...
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What represents a double in sql server?

I have a couple of properties in C# which are double and I want to store these in a table in SQL Server, but noticed there is no double type, so what is best to use, decimal or float ? ...
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Footnotes for tables in LaTeX

...difficulty in LaTeX. The problem is how to do layout with floats (figures and tables, an similar objects) and footnotes. In particular, it is hard to pick a place for a float with certainty that making room for the associated footnotes won't cause trouble. So the standard tabular and figure environ...
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Select all elements with “data-” attribute without using jQuery

...le (though not an array). Looping with for in will iterate over the length and item properties. Instead, use for of to iterate over properties designed to be iterated over – Solvitieg Mar 21 '19 at 4:30 ...