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Rails: Using greater than/less than with a where statement

I'm trying to find all Users with an id greater than 200, but I'm having some trouble with the specific syntax. 9 Answers ...
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How can you make a custom keyboard in Android?

I want to make a custom keyboard. I don't know how to do it using XML and Java. The following picture is a model of the keyboard I want to make. It only needs numbers. ...
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SQL - Update multiple records in one query

... Try either multi-table update syntax UPDATE config t1 JOIN config t2 ON t1.config_name = 'name1' AND t2.config_name = 'name2' SET t1.config_value = 'value', t2.config_value = 'value2'; Here is SQLFiddle demo or conditional update UPDATE config SET config_value...
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In CSS what is the difference between “.” and “#” when declaring a set of styles?

What is the difference between # and . when declaring a set of styles for an element and what are the semantics that come into play when deciding which one to use? ...
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Custom toast on Android: a simple example

I'm new to Android programming. What is a simple example showing a custom toast notification on Android? 17 Answers ...
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Check if object value exists within a Javascript array of objects and if not add a new object to arr

If I have the following array of objects: 18 Answers 18 ...
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YouTube API to fetch all videos on a channel

We need a video list by channel name of YouTube (using the API). 14 Answers 14 ...
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Difference Between One-to-Many, Many-to-One and Many-to-Many?

Ok so this is probably a trivial question but I'm having trouble visualizing and understanding the differences and when to use each. I'm also a little unclear as to how concepts like uni-directional and bi-directional mappings affect the one-to-many/many-to-many relationships. I'm using Hibernate ri...
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How to add url parameters to Django template url tag?

In my view to get url parameters like this: 6 Answers 6 ...
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How to copy a row and insert in same table with a autoincrement field in MySQL?

In MySQL I am trying to copy a row with an autoincrement column ID=1 and insert the data into same table as a new row with column ID=2 . ...