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MySQL select one column DISTINCT, with corresponding other columns

I want to select DISTINCT results from the FirstName column, but I need the corresponding ID and LastName . 12 Answe...
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Delete all Duplicate Rows except for One in MySQL? [duplicate]

... Editor warning: This solution is computationally inefficient and may bring down your connection for a large table. NB - You need to do this first on a test copy of your table! When I did it, I found that unless I also included AND n1...
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scopes with lambda and arguments in Rails 4 style?

I'm wondering how the following is done in Rails 4 or if I just use the Rails 3 approach for using a lambda that can pass an argument the same way with 4 as I do with 3. ...
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How to check if a user likes my Facebook Page or URL using Facebook's API

I think I'm going crazy. I can't get it to work. I simply want to check if a user has liked my page with javascript in an iFrame app. ...
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An App ID with Identifier '' is not available. Please enter a different string

I am trying to add a new APP ID to prepare for App Store submission and got the following error under the bundle ID I provided. ...
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In which case do you use the JPA @JoinTable annotation?

In which case do you use the JPA @JoinTable annotation? 5 Answers 5 ...
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How to change ProgressBar's progress indicator color in Android

...t_width="fill_parent" android:layout_height="wrap_content" android:indeterminate="false" android:maxHeight="10dip" android:minHeight="10dip" android:progress="50" android:progressDrawable="@drawable/greenprogress" /> Then create a new drawable with something similar to t...
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Array vs. Object efficiency in JavaScript

I have a model with possibly thousands of objects. I was wondering what would be the most efficient way of storing them and retrieving a single object once I have it's id. The id's are long numbers. ...
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Why does MYSQL higher LIMIT offset slow the query down?

Scenario in short: A table with more than 16 million records [2GB in size]. The higher LIMIT offset with SELECT, the slower the query becomes, when using ORDER BY *primary_key* ...
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How to create a date and time picker in Android? [closed]

... There is nothing built into Android that offers this. EDIT: Andriod now offers built-in pickers. Check @Oded answer share | improve th...