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How do I check if an index exists on a table field in MySQL?
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Be careful and test all the statement using this. This fails on some tables in my database when trying to use it with LiquiBase 1.9.5. Maybe my DB is corrupted. Or maybe it's a bug in the ancient version of LiquiBase I'm stuck using ...
Override back button to act like home button
...time you need to create a Service to perform something in the background, and your visible Activity simply controls this Service. (I'm sure the Music player works in the same way, so the example in the docs seems a bit misleading.) If that's the case, then your Activity can finish as usual and the ...
How can I fix the Microsoft Visual Studio error: “package did not load correctly”?
I installed Visual Studio 2012 and DevExpress 13.1. As Visual Studio started, it generated an error shown by this attached image,
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How to fast-forward a branch to head?
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Doing:
git checkout master
git pull origin
will fetch and merge the origin/master branch (you may just say git pull as origin is the default).
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What components are MVC in JSF MVC framework?
In JSF MVC framework who is Model, View, and Controller?
4 Answers
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NoSQL (MongoDB) vs Lucene (or Solr) as your database
... similarity with how to treat items as "Documents", just like Lucene does (and users of Solr).
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How to use a link to call JavaScript?
...rst one scrolls you to the top of the page.
– Matt Grande
Mar 27 '09 at 1:39
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Yep it definitely ...
Common elements in two lists
...tB);
// common now contains only the elements which are contained in listA and listB.
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Good Hash Function for Strings
I'm trying to think up a good hash function for strings. And I was thinking it might be a good idea to sum up the unicode values for the first five characters in the string (assuming it has five, otherwise stop where it ends). Would that be a good idea, or is it a bad one?
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It is more efficient to use if-return-return or if-else-return?
...like this. All we have achieved is to make the code obfuscated, unreadable and in some cases more vulnerable to implicit type promotions.
– Lundin
Feb 8 '12 at 10:51
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