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find() with nil when there are no records

In my current rails program when I use something like 8 Answers 8 ...
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Postgres manually alter sequence

I'm trying to set a sequence to a specific value. 5 Answers 5 ...
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How to get Activity's content view?

... this.getWindow().getDecorView().findViewById(android.R.id.content) or this.findViewById(android.R.id.content) or this.findViewById(android.R.id.content).getRootView() ...
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How can I remove a button or make it invisible in Android?

How can I remove a button in Android, or make it invisible? 14 Answers 14 ...
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Can I return the 'id' field after a LINQ insert?

When I enter an object into the DB with Linq-to-SQL can I get the id that I just inserted without making another db call? I am assuming this is pretty easy, I just don't know how. ...
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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)

...n you limit the number of rows to be returned by a SQL query, usually used in paging, there are two methods to determine the total number of records: ...
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What does “for” attribute do in HTML tag?

I wonder what is the difference between the following two code snippets: 6 Answers 6 ...
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Handling colon in element ID with jQuery

We are not able to access the div element with ID "test: abc" in JS code using jQuery. 9 Answers ...
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UPDATE multiple tables in MySQL using LEFT JOIN

I have two tables, and want to update fields in T1 for all rows in a LEFT JOIN. 5 Answers ...
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How to access the GET parameters after “?” in Express?

... So, after checking out the express reference, I found that req.query.color would return me the value I'm looking for. req.params refers to items with a ':' in the URL and req.query refers to items associated with the '?' Example: GET /s...