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Aggregate function in an SQL update query?

... UPDATE t1 SET t1.field1 = t2.field2Sum FROM table1 t1 INNER JOIN (select field3, sum(field2) as field2Sum from table2 group by field3) as t2 on t2.field3 = t1.field3 share | improve...
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jQuery/Javascript function to clear all the fields of a form [duplicate]

...switch(this.type) { case 'password': case 'select-multiple': case 'select-one': case 'text': case 'textarea': $(this).val(''); break; case 'checkbox': ...
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How to check file MIME type with javascript before upload?

...d see three remote images of different types displayed. At the top you can select a local image or data file, and the file signature and/or MIME type will be displayed. Notice that even if an image is renamed, its true MIME type can be determined. See below. Screenshot // Return the first...
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What's the false operator in C# good for?

...he operator false declared in T, and T.&(x, y) is an invocation of the selected operator &. In other words, x is first evaluated and operator false is invoked on the result to determine if x is definitely false. Then, if x is definitely false, the result of the operation is the value previou...
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Changing case in Vim

Is there a command in Vim that changes the case of the selected text? 2 Answers 2 ...
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Xcode 5: Code signing entitlement errors

... This worked for me too. I am using Xcode 6.3. I was unable to select apple dev account for code signing. Totally unrelated error message was displayed everytime "ios app id 'xxxxxxxxx' does not support changes to the maps feature". A simple xcode restart fixed it for me. ...
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Java String remove all non numeric characters

Trying to remove all letters and characters that are not 0-9 and a period. I'm using Character.isDigit() but it also removes decimal, how can I also keep the decimal? ...
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How to find children of nodes using BeautifulSoup

... This answers the question how to select <a>link1</a> in the HTML given in the question, but this will FAIL when the first <li class="test"> will contain no <a> elements and there are other li elements with test class that contains<...
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What is the difference between ? and Object in Java generics?

...rwise, specify the types that you need: public void printAThroughZ(Map<Character, ?> anyCharacterMap) { for (int i = 'A'; i <= 'Z'; i++) System.out.println(anyCharacterMap.get((char) i)); } In the above method, we'd need to know that the Map's key is a Character, otherwise, w...
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Intellij shortcut to convert code to upper or lower case?

... I have trouble where sometimes pressing CTRL+SHIFT+U just replaces the selected text with the letter U.... sometimes it works, but usually it just does the replacing. – Trenton Jul 31 '14 at 16:15 ...