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SQL UPDATE all values in a field with appended string CONCAT not working

Here is what I want to do: 7 Answers 7 ...
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best practice to generate random token for forgot password

I want to generate identifier for forgot password . I read i can do it by using timestamp with mt_rand(), but some people are saying that time stamp might not be unique every time. So i am bit of confused here. Can i do it with using time stamp with this ? ...
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How to make an Android Spinner with initial text “Select One”?

I want to use a Spinner that initially (when the user has not made a selection yet) displays the text "Select One". When the user clicks the spinner, the list of items is displayed and the user selects one of the options. After the user has made a selection, the selected item is displayed in the Spi...
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Elevating process privilege programmatically?

I'm trying to install a service using InstallUtil.exe but invoked through Process.Start . Here's the code: 5 Answers ...
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How can I disable HREF if onclick is executed?

I have an anchor with both HREF and ONCLICK attributes set. If clicked and Javascript is enabled, I want it to only execute ONCLICK and ignore HREF . Likewise, if Javascript is disabled or unsupported, I want it to follow the HREF URL and ignore ONCLICK . Below is an example of what I'...
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How to convert PascalCase to pascal_case?

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How to sort mongodb with pymongo

I'm trying to use the sort feature when querying my mongoDB, but it is failing. The same query works in the MongoDB console but not here. Code is as follows: ...
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Dump a mysql database to a plaintext (CSV) backup from the command line

I'd like to avoid mysqldump since that outputs in a form that is only convenient for mysql to read. CSV seems more universal (one file per table is fine). But if there are advantages to mysqldump, I'm all ears. Also, I'd like something I can run from the command line (linux). If that's a mysql s...
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Why doesn't “System.out.println” work in Android?

I want to print something in console, so that I can debug it. But for some reason, nothing prints in my Android application. ...
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AngularJS : Difference between the $observe and $watch methods

I know that both Watchers and Observers are computed as soon as something in $scope changes in AngularJS. But couldn't understand what exactly is the difference between the two. ...