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How to copy a collection from one database to another in MongoDB

... The best way is to do a mongodump then mongorestore. You can select the collection via: mongodump -d some_database -c some_collection [Optionally, zip the dump (zip some_database.zip some_database/* -r) and scp it elsewhere] Then restore it: mongorestore -d some_other_db -c some_or_ot...
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Getting “type or namespace name could not be found” but everything seems ok?

...To do this: I right-clicked on my Solution in the Solution Explorer and selected "Properties" Then in "Common Properties" I selected "Project Dependencies". Then in the Projects drop-down menu I selected the project that relied on the library, and Checked the box next to the library found under "...
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Executing Shell Scripts from the OS X Dock?

... is it's really simple to do, and you can very easily get user input (say, selecting a bunch of files), then pass it to the input of the shell script (either to stdin, or as arguments). (Automator is in your /Applications folder!) ...
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Landscape printing from HTML

...y seem to work in IE7 but this is because IE7 will remember the users last selection of landscape or portrait in print preview (only the browser is re-started). This article does have some suggested work arounds using JavaScript or ActiveX that send keys to the users browser although it they are no...
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How do I get the APK of an installed app without root access?

...e your device try (re)installing USB-Driver for your device In middle pane select tab "File Explorer" and go to system > app Now you can select one or more files and then click the "Pull a file from the device" icon at the top (right to the tabs) Select target folder - tada! ...
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What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?

...ng this, For Custom font: TextView tv = ((TextView) v.findViewById(R.id.select_item_title)); Typeface face=Typeface.createFromAsset(getAssets(),"fonts/mycustomfont.ttf"); tv.setTypeface(face); For Default font: tv.setTypeface(Typeface.create("sans-serif-medium",Typeface.NORMAL)); These ar...
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how do I use UIScrollView in Interface Builder?

...tion to configure the UIScrollView's contentSize from Interface Builder: Select the UIScrollView in the Storyboard scene Go to the Identity inspector, create a new User Defined Runtime Attribute (click the + button) Change the attribute Key Path to contentSize Change the attribute Type to Size Now...
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Compare two objects' properties to find differences?

...pe t1, Type t2) { var list1 = t1.GetProperties().OrderBy(x => x.Name).Select(x => x.Name); var list2 = t2.GetProperties().OrderBy(x => x.Name).Select(x => x.Name); return list1.SequenceEqual(list2); } shar...
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Why use a READ UNCOMMITTED isolation level?

...on. This option has the same effect as setting NOLOCK on all tables in all SELECT statements in a transaction. This is the least restrictive of the four isolation levels. share | improve this answe...
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Do I have to guard against SQL injection if I used a dropdown?

... $size = filter_input(INPUT_POST, "size", FILTER_VALIDATE_INT); echo '<select name="size">'; foreach($sizes as $i => $s) { echo '<option value="' . $i . '"' . ($i == $size ? ' selected' : '') . '>' . $s . '</option>'; } echo '</select>'; Then you can use $size in yo...