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Which is faster: multiple single INSERTs or one multiple-row INSERT?

I am trying to optimize one part of my code that inserts data into MySQL. Should I chain INSERTs to make one huge multiple-row INSERT or are multiple separate INSERTs faster? ...
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jQuery AJAX cross domain

Here are two pages, test.php and testserver.php. 14 Answers 14 ...
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Adding a new value to an existing ENUM Type

I have a table column that uses an enum type. I wish to update that enum type to have an additional possible value. I don't want to delete any existing values, just add the new value. What is the simplest way to do this? ...
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Java Hashmap: How to get key from value?

If I have the value "foo" , and a HashMap<String> ftw for which ftw.containsValue("foo") returns true , how can I get the corresponding key? Do I have to loop through the hashmap? What is the best way to do that? ...
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How to print last two columns using awk

All I want is the last two columns printed. 6 Answers 6 ...
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PHP: How to use array_filter() to filter array keys?

The callback function in array_filter() only passes in the array's values, not the keys. 14 Answers ...
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libpng warning: iCCP: known incorrect sRGB profile

I'm trying to load a PNG image using SDL but the program doesn't work and this error appears in the console 13 Answers ...
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Is there a destructor for Java?

Is there a destructor for Java? I don't seem to be able to find any documentation on this. If there isn't, how can I achieve the same effect? ...
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MySQL Database won't start in XAMPP Manager-osx

I downloaded XAMPP about a month ago and it was working just fine. Today I installed a voice recognition software and then restarted my computer. Ever since, MySQL won't start in my manager-osx application. It doesn't throw me an in the application log. This is what it says: ...
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Associating enums with strings in C#

I know the following is not possible because the Enumeration's type has to be an int 32 Answers ...