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MongoDB - Update objects in a document's array (nested updating)
Assume we have the following collection, which I have few questions about:
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postgresql COUNT(DISTINCT …) very slow
I have a very simple SQL query:
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How to unpack and pack pkg file?
I have a pkg file created by Install Maker for Mac.
I want to replace one file in pkg. But I must do this under Linux system, because this is a part of download process. When user starts to download file server must replace one file in pkg.
I have a solution how unpack pkg and replace a file but I d...
onTouchListener warning: onTouch should call View#performClick when a click is detected
I have created a onTouchListener . Unfortunately onTouch() method throws me a warning:
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Passing two command parameters using a WPF binding
I have a command which I am executing from my XAML file using the following standard syntax:
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Does a valid XML file require an XML declaration?
I am parsing an XML file using Sax Parser of Xerces.
Is the XML declaration <?xml version="1.0" encoding="UTF-8"?> required?
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Why can't the tag contain a tag inside it?
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An authoritative place to look for allowed containment relations is the HTML spec. See, for example, http://www.w3.org/TR/html4/sgml/dtd.html. It specifies which elements are block elements and which are inline. For those lists, search for the section marked "HTML content mo...
ASP.Net: Literal vs Label
I just wanted to hear some authorities on when and where you should use a LITERAL control over a LABEL .
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How to remove jar file from local maven repository which was added with install:install-file?
I use above command to install local jar into maven local repo. Now I have got the dependency from maven repo. I want to remove this from local repo. How to clean it ?
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How to select date from datetime column?
I have a column of type "datetime" with values like 2009-10-20 10:00:00
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