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How to add not null constraint to existing column in MySQL

... Oddly I was getting an error (MySQL 5.6, Workbench 6.3) changing/modifying a column I'd named null_heart_rate_count, error was #1138, Invalid use of NULL value. I had to drop and add the column instead. – William T. Mallard ...
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Unable to install R package in Ubuntu 11.04 [closed]

... help MAC users. Even though i had all the dependent libraries i still got errors. After a lot a lot of trials this is what saved me- While installing via rstudio using install.packages(), you get a prompt asking -Do you want to install from sources the package which needs compilation? y/n: Give y...
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How to print a double with two decimals in Android? [duplicate]

...extView2.setText(form.format(result) ); ...cause "NumberFormatException" error in locale for Europe because it sets result as comma instead of point decimal - error occurs when textView is added to number in editText. Both solutions are working excellent in locale US and UK. ...
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How to convert integer to string in C? [duplicate]

... I tried running this program, and I got a runtime error. How can I get it to work properly? ideone.com/Xl21B4 – Anderson Green Mar 6 '13 at 2:56 ...
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jQuery dot in ID selector? [duplicate]

... Not without "": Error: Syntax error, unrecognized expression: p[id=details_it.airgap.vault]` – Giszmo Jun 25 at 19:58 ...
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Exported service does not require permission: what does it mean?

... I use Eclipse 4.2.1, and it doesn't add it, giving an error (at least with the default config?). It just says: The prefix "tools" for attribute "tools:ignore" associated with an element type "activity" is not bound, and no choices are given for fixing this. ...
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Cannot use Server.MapPath

... They not working.... Error 1 The type or namespace name 'HttpContext' does not exist in the namespace 'System.Web' (are you missing an assembly reference?) ... Error 2 The type or namespace name 'Hosting' does not exist in the namespace 'System.W...
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List view getListItemXmlAttributes method fails with child publication items

...ine 545" data: no] This is telling you what file is associated with that error. and what line it faulted on. But the real key is the NS_NOINTERFACE error. Which means the interface has not been registered. You are using Type.enableInterface(). Is that a custom method you are declaring somewhe...
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NSLayoutConstraint crashes ViewController [duplicate]

I'm getting this error when clicking on a button in my app: 1 Answer 1 ...
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Recommended way of getting data from the server

..., ... }, function (resp) { //handle return callback }, function (error) { //handler error callback }); Probably you can handle code on higher abstraction level. share | improve this ...