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How do I perform the SQL Join equivalent in MongoDB?

...t array field> } } Of course Mongo is not a relational database, and the devs are being careful to recommend specific use cases for $lookup, but at least as of 3.2 doing join is now possible with MongoDB. share ...
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How do I convert a column of text URLs into active hyperlinks in Excel?

... If you don't want to make a macro and as long as you don't mind an additional column, then just create a new column alongside your column of URLs. In the new column type in the formula =HYPERLINK(A1) (replacing A1 with whatever cell you are interested in). T...
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PHP best way to MD5 multi-dimensional array?

... is two-fold here as (1) json_encode alone performs faster than serialize, and (2) json_encode produces a smaller string and therefore less for md5 to handle. Edit: Here is evidence to support this claim: <?php //this is the array I'm using -- it's multidimensional. $array = unserialize('a:6:{i...
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Can I use multiple versions of jQuery on the same page?

...f jQuery to a different alias). How the customer is using jQuery will vary and is outside of my control. Can I safely just use the latter half, or do both libraries need to call noConflict()? – Bungle Oct 14 '09 at 15:05 ...
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Eclipse returns error message “Java was started but returned exit code = 1

...ine): /!\ make sure, that the -vm option occurs before the -vmargs command. Everything after -vmargs is passed directly to the JVM. -vm c:/wherever/java/jdk1.6.0_21/jre/bin/server/jvm.dll -vmargs... ...to your eclipse.ini file, pointing to the JDK you want to use, and check that the req...
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Make Iframe to fit 100% of container's remaining height

I want to design a web page with a banner and an iframe. I hope the iframe can fill all the remaining page height and be resized automatically as the browser is resizing. Is it possible to get it done without writing JavaScript code, only with CSS? ...
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Linux command (like cat) to read a specified quantity of characters

Is there a command like cat in linux which can return a specified quantity of characters from a file? 9 Answers ...
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Is it possible to apply CSS to half of a character?

... Now on GitHub as a Plugin! Feel free to fork and improve. Demo | Download Zip | Half-Style.com (Redirects to GitHub) Pure CSS for a Single Character JavaScript used for automation across text or multiple characters Preserves Text Accessibility for screen readers fo...
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Logging in Scala

...hat is consistent with the language philosophy, does not clutter the code, and is low-maintenance and unobtrusive. Here's a basic requirement list: ...
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What's the difference between Ruby's dup and clone methods?

...s often my source for answers to these questions, since it is quite clear, and a fairly compliant Ruby implementation. share | improve this answer | follow | ...