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Use email address as primary key?

...an't say that a proposed key is not unique based on hypotheticals without knowing the context. e.g. from the phone company's point of view, a telephone number uniquely identifies a customer, by definition. Yes, you can say, "But what if there are two or three people who might answer when you call th...
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Displaying the #include hierarchy for a C++ file in Visual Studio

... There is now a plugin for Visual Studio called IncludeToolbox. It can list your dependent includes and do more things like a random remove and compile to see if that include was required. ...
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Do fragments really need an empty constructor?

... paused.. Commonsguy should be able to explain better. In Short You don't know! :) – Chris.Jenkins May 5 '12 at 17:14 1 ...
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Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)

... Also you must know that sending a SMS and MMS are 2 entirely different things in background. MMS is more of an internet based network service as it requires sending additional items(Media) with text. The given code works fine on a few devi...
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Twitter bootstrap 3 two columns full height

...loat { display: table-cell; float: none; } } Codepen demo Now, for smaller screens, the columns will behave like default bootstrap columns (each getting full width). 3) If the 1:3 ratio is necessary for all screen widths - then it's probably a better to remove bootstrap's col-md-* ...
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Java ResultSet how to check if there are any results

...ately after to reset it, since it has positioned itself past the first row now. It should be noted however, that Seifer's answer below is a more elegant solution to this question. share | improve ...
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C# : 'is' keyword and checking for Not

...ng was not a particular type. I've done it (!(child is Something)) forever now, but I thought I'd make sure there wasn't a better way. – Hugoware May 1 '09 at 14:43 1 ...
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overlay two images in android to set an imageview

...; <item android:drawable="@drawable/tt" /> </layer-list> Now set the image using that Drawable: testimage.setImageDrawable(getResources().getDrawable(R.layout.layer)); Solution #2 (dynamic): Resources r = getResources(); Drawable[] layers = new Drawable[2]; layers[0] = r.getDra...
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How to get ERD diagram for an existing database?

... you are importing to the current model, which is fine since it is empty). Now switch back to the Design tab to see your ERD. share | improve this answer | follow ...
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How to trigger Autofill in Google Chrome?

I would like to know if there is some kind of special markup to enable the Chrome autofill feature for a specific form. I only found questions about how to disable it, but I would like to know if I can add some kind of markup to the html code in order to tell the browser "this is the input for the a...