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How to set the first option on a select box using jQuery?

I have two HTML select boxes. I need to reset one select box when I make a selection in another. 17 Answers ...
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How do I find a “gap” in running counter with SQL?

... In MySQL and PostgreSQL: SELECT id + 1 FROM mytable mo WHERE NOT EXISTS ( SELECT NULL FROM mytable mi WHERE mi.id = mo.id + 1 ) ORDER BY id LIMIT 1 In SQL Server: SELECT TOP 1 i...
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problem with and :after with CSS in WebKit

I would like to add some style on a select box with the pseudo :after (to style my select box with 2 parts and without images). Here's the HTML: ...
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Bootstrap select dropdown list placeholder

... Yes just "selected disabled" in the option. <select> <option value="" selected disabled>Please select</option> <option value="">A</option> <option value="">B</option> <optio...
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Get selected value of a dropdown's item using jQuery

How can I get the selected value of a dropdown box using jQuery? I tried using 30 Answers ...
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Prevent text selection after double click

...lick event on a span in my web app. A side-effect is that the double click selects text on the page. How can I prevent this selection from happening? ...
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Javascript/jQuery: Set Values (Selection) in a multiple Select

I have a multiple select: 8 Answers 8 ...
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

The "N+1 selects problem" is generally stated as a problem in Object-Relational mapping (ORM) discussions, and I understand that it has something to do with having to make a lot of database queries for something that seems simple in the object world. ...
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How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?

... You are so close! All you need to do is select BOTH the home and its max date time, then join back to the topten table on BOTH fields: SELECT tt.* FROM topten tt INNER JOIN (SELECT home, MAX(datetime) AS MaxDateTime FROM topten GROUP BY home) groupedtt...
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Why is SELECT * considered harmful?

Why is SELECT * bad practice? Wouldn't it mean less code to change if you added a new column you wanted? 15 Answers ...