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How do you use the “WITH” clause in MySQL?

...s mentioned, you provided a poor example - there's no need to perform a subselect if you aren't altering the output of the columns in any way: SELECT * FROM ARTICLE t JOIN USERINFO ui ON ui.user_userid = t.article_ownerid JOIN CATEGORY c ON c.catid = t.article_categoryid WHERE t....
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Why are Where and Select outperforming just Select?

... Select iterates once over the entire set and, for each item, performs a conditional branch (checking for validity) and a + operation. Where+Select creates an iterator that skips invalid elements (doesn't yield them), perform...
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Using union and order by clause in mysql

...criteria from a table based on distance for a search on my site. The first select query returns data related to the exact place search . The 2nd select query returns data related to distance within 5 kms from the place searched. The 3rd select query returns data related to distance within 5-15 kms f...
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How to select multiple rows filled with constants?

Selecting constants without referring to a table is perfectly legal in an SQL statement: 15 Answers ...
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Selecting text in an element (akin to highlighting with your mouse)

I would like to have users click a link, then it selects the HTML text in another element ( not an input). 16 Answers ...
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Selecting a row in DataGridView programmatically

How can I select a particular range of rows in a DataGridView programmatically at runtime? 8 Answers ...
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jQuery If DIV Doesn't Have Class “x”

...y I need to do an if statement to see if $this doesn't contain the class '.selected'. 7 Answers ...
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Firefox ignores option selected=“selected”

If you change a dropdown and refresh the page, Firefox seems to ignore the selected attribute. 20 Answers ...
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INSERT with SELECT

I have a query that inserts using a select: 8 Answers 8 ...
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How to add images in select list?

I have a select list of genders. 13 Answers 13 ...