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How to remove a column from an existing table?

... Taryn♦ 216k5050 gold badges327327 silver badges380380 bronze badges answered Apr 11 '11 at 19:22 jcomeau_ictxjc...
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Converting an integer to a string in PHP

...depends on your context. $var = 5; // Inline variable parsing echo "I'd like {$var} waffles"; // = I'd like 5 waffles // String concatenation echo "I'd like ".$var." waffles"; // I'd like 5 waffles // The two examples above have the same end value... // ... And so do the two below // Explicit c...
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What is Data Transfer Object?

... needs to be sent across the wire in distributed applications. They also make great models in the MVC pattern. Another use for DTOs can be to encapsulate parameters for method calls. This can be useful if a method takes more than 4 or 5 parameters. When using the DTO pattern, you would also make u...
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Can someone explain in simple terms to me what a directed acyclic graph is?

... explain in simple terms to me what a directed acyclic graph is? I have looked on Wikipedia but it doesn't really make me see its use in programming. ...
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Properly removing an Integer from a List

... answered Dec 26 '10 at 14:45 akaaka 2,63311 gold badge1111 silver badges1010 bronze badges ...
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How do I generate random integers within a specific range in Java?

...ndom; // nextInt is normally exclusive of the top value, // so add 1 to make it inclusive int randomNum = ThreadLocalRandom.current().nextInt(min, max + 1); See the relevant JavaDoc. This approach has the advantage of not needing to explicitly initialize a java.util.Random instance, which can be...
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CSS Classes & SubClasses

Is it possible, other than what I'm doing because it doesn't seem to work, to do this? I want to be able to have subclasses that are under a class to use the CSS specifically for that class.subclass. ...
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How can I check whether Google Maps is fully loaded?

...edding Google Maps into my web site. Once Google Maps is loaded, I need to kick off a few JavaScript processes. 9 Answers ...
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Android dex gives a BufferOverflowException when building

... No need to downgrade the build tools back to 18.1.11, this issue is fixed with build tools 19.0.1. If you can't use 19.0.1 for some reason then: Make sure that the value of android:targetSdkVersion in AndroidManifest.xml matches target=android-<value> in pr...
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How to get a substring between two strings in PHP?

...g whether there is a php function that achieves that. I do not want to think about regex (well, I could do one but really don't think it's the best way to go). Thinking of strpos and substr functions. Here's an example: ...