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How to delete a MySQL record after a certain time

I want to delete some messages from my MySQL database after 7 days. My message table rows have this format: id | message ... - 7 days); END; $$; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Cannot catch toolbar home button click event

I've implemented the newest appcompat library and using the Toolbar as action bar. But the problem is I cannot ... still doesn't get called. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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spring - ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean

I have written a spring batch application using Spring boot. When I am trying to run that application ... bb.StartSpringBatch > somelogs.log See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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github - git - how to get default branch?

My team alternates between usage of dev and master as default branch for several repos and I would like to ... branch for remote repository? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I use Web.debug.config in the built-in visual studio debugger server?

How can I merge and make use of Web.debug.config in visual studio 2010 built-in debugger? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Entity Framework - Is there a way to automatically eager-load child entities without Include()?

Is there a way to decorate your POCO classes to automatically eager-load child entities without having to use ... () multiple children entities See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Entity framework PostgreSQL

Can someone tell me how can I get MS Entity Framework working with PostgreSQL. Also: How does Entity Framewok ... is your opinion about them? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Are Thread.sleep(0) and Thread.yield() statements equivalent?

Are these two statement equivalent? Thread.sleep(0); Thread.yield(); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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laravel - Eloquent eager load Order by

I have problem with eloquent query. I am using eager loading (one to one Relationship) to get 'student' With the ' ... Any ideas how to do it ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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exception - Android: Unable to instantiate activity / ClassNotFoundException

I recently published an app to the market and I'm now getting an error by some user, the app presumably ... was applied there. Thanks, Select0r See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - @csrf_exempt does not work on generic view based class

class ChromeLoginView(View): def get(self, request): return JsonResponse({'status': request.user.is_authenticated()} ... advice would be great. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - namespace naming conventions

For those of you out there writing reusable components, what do you consider to be best practice if you're extending ... I use System.Net.Mail ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - React useState hook event handler using initial state

I'm still getting my head around react hooks but struggling to see what I'm doing wrong here. I have a ... |bottom|right but instead is null. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to unzip files recursively in Java?

I have zip file which contains some other zip files. For example, the mail file is abc.zip and it contains ... , class3.java and class4.java. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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drawing pyramid plot using R and ggplot2

I need to draw a pyramid plot, like the one attached. I found an example using R (but not ggplot) from ... on doing this using ggplot? Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Poster with the 8 phases of translation in the C language

Does anyone have a reference to a poster/one-page pdf or something similar with a list of the eight phases of ... would like to avoid that). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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575 views

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jquery - How is a non-breaking space represented in a JavaScript string?

This apparently is not working: X = $td.text(); if (X == ' ') { X = ''; } Is there ... or the ampersand that JavaScript doesn't like? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Reverse Range in Swift

Is there a way to work with reverse ranges in Swift? For example: for i in 5...1 { // do ... wondering if there was anything more legible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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145 views

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html - How to fix height of TR?

Is it possible to fix the height of a row (tr) on a table? The problem appears when I shrink the window of the ...  </td> </tr> </table> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net mvc 3 - Conditional HTML Attributes using Razor MVC3

The variable strCSSClass often has a value but sometimes is empty. I do not want to include an empty class= ... element: class="@strCSSClass" ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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287 views

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ios - Swift default AlertViewController breaking constraints

I am trying to use a default AlertViewController with style .actionSheet. For some reason, the alert causes a constraint ... for any help I get. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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242 views

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c++ - performance of unsigned vs signed integers

Is there any performance gain/loss by using unsigned integers over signed integers? If so, does this goes for short and long as well? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - What is the use of Pattern.quote method?

I'm trying to understand Pattern.quote using the following code: String pattern = Pattern.quote("1252343% 8 567 ... are some usage examples? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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370 views

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Passing an Array or List to @Pathvariable - Spring/Java

I am doing a simple 'get' in JBoss/Spring. I want the client to pass me an array of ... find @PathVariable [firstNameIds] in @RequestMapping See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - 'require': cannot load such file -- 'nokogiri okogiri' (LoadError) when running `rails server`

I'm running a clean install of Ruby 2.2.1 on Windows 8.1 with DevKit. After the installation I run: gem ... a simple test Rails app to work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dataframe - Replacing values from a column using a condition in R

I have a very basic R question but I am having a hard time trying to get the right answer. I have a data ... df[df$depth<10]<-0 Any suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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326 views

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android - How to cancel an Dialog themed like Activity when touched outside the window?

I have an activity with a Dialog theme and I would like to close (finish) this activity when someone touches the screen ... How can I do this ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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83 views

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Mixing keyword with regular arguments in Ruby?

Ruby 2.0 supports keyword arguments. I was wondering, what are the 'rules' for mixing regular with keyword arguments? ... 't seem to find any. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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