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Can I use a function for a default value in MySql?

...asily create a trigger to do this, such as: CREATE TRIGGER before_insert_app_users BEFORE INSERT ON app_users FOR EACH ROW SET new.api_key = uuid(); share | improve this answer | ...
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网

创建 Apps 首页 关于我们 关于我们 发布日志 服务条款 教育 中文教程 中文社区 反馈 我要反馈 ...
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Changing API level Android Studio

...your minSdkVersion in an existent project... Update build.gradle(Module: app) - Make sure is the one under Gradle Script and it is NOT build.gradle(Project: yourproject). An example of build.gradle: apply plugin: 'com.android.application' android { compileSdkVersion 28 buildToolsVersio...
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iOS / Android cross platform development [closed]

I've been playing around with developing Android apps in Java for a while and am starting to get a handle on it. However if I want to on start on an iOS version I need to code everything from scratch - which is, well, undesirable. ...
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Build unsigned APK file with Android Studio

I'm developing an android app with the Android Developer Tool. Now I tried the new Android Studio, everything works fine if connect my smartphone with the pc and directly run the program in the Android Studio. But now I want to test the program with other smartphones without connecting them to my pc...
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Difference between app.use and app.get in express.js

... new to express and node.js, and I can't figure out the difference between app.use and app.get. It seems like you can use both of them to send information. For example: ...
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What does @hide mean in the Android source code?

...aces, whether directly, via reflection, or via JNI. These restrictions are applied whenever an app references a non-SDK interface or attempts to obtain its handle using reflection or JNI. But before API level 28, the hidden methods could still be accessed via Java reflection. The @hide attribute i...
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How to remove an iOS app from the App Store

I want to remove my app, which is currently marked "Ready for sale", from the App Store. I could not find any documentation on this, and there is no "Remove from Sale" option in the "Manage Your Apps" section of iTunes Connect. Can anyone guide me on how I can remove my app from the App Store? ...
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argparse: identify which subparser was used [duplicate]

...mands') # all all_parser = subparsers.add_parser('all', help='process all apps') all_parser.set_defaults(which='all') # app app_parser = subparsers.add_parser('app', help='process a single app') app_parser.add_argument('appname', action='store', help='name of app to process') app_parser.set_defaul...
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Automatic HTTPS connection/redirect with node.js/express

... and it works. In this scenario these code snippets are put in my express app: // set up plain http server var http = express(); // set up a route to redirect http to https http.get('*', function(req, res) { res.redirect('https://' + req.headers.host + req.url); // Or, if you don't want...