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Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio

... Wouldn't the solution specifically for the "opencases" column be simpler as just "select count(1)..." (or "count" of any other literal)? The Where clause already specifies "and closed is NULL" so no need for summing a case statement in this instance. Also...
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Sharing link on WhatsApp from mobile website (not application) for Android

...ave developed a website which is mainly used in mobile phones. I want to allow users to share information directly from the web page into WhatsApp. ...
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How do I efficiently iterate over each entry in a Java Map?

...erret The only reason you might want to use an iterator is if you need to call its remove method. If that is the case, this other answer shows you how to do it. Otherwise, the enhanced loop as shown in the answer above is the way to go. – assylias Oct 8 '12 at ...
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How to split a string in shell and get the last field

...: (while using the string operators yields an empty result). This is especially handy when parsing paths that could contain (or not) a finishing / character. – eckes Jan 23 '13 at 15:23 ...
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PHP Pass variable to next page

...the method for the form to post if you want to do it via post. Both are equally insecure, although GET is easier to hack. The fact that each new request is, except for session data, a totally new instance of the script caught me when I first started coding in PHP. Once you get used to it, it's quit...
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How to read and write excel file

...org/apidocs/org/apache/poi/hssf/usermodel/… – nicolallias Dec 23 '14 at 14:18 1 In my attempts ...
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How to check if a file is a valid image file?

... That won't be sufficient if he's really testing for "valid" images; the presence of a magic number doesn't guarantee that the file hasn't been truncated, for example. – Ben Blank May 20 '09 at 18:11 ...
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Using Enum values as String literals

... You can't. I think you have FOUR options here. All four offer a solution but with a slightly different approach... Option One: use the built-in name() on an enum. This is perfectly fine if you don't need any special naming format. String name = Modes.mode1.name(); /...
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How do I enable/disable log levels in Android?

..."); // Still goes through Later, you can just change the LOGLEVEL for all debug output level. share | improve this answer | follow | ...
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Database Diagram Support Objects cannot be Installed … no valid owner

... Well, that really depends. If you need your database to be owned by a Windows domain/workgroup user, then there is probably more work to do. Personally, I find this problematic. Maybe read this first: sqlblog.com/blogs/tibor_karaszi/ar...