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Flask Flask is a lightweight WSGI Web application framework. It is designed to make it easy to get started and has the ability to scale to complex applications. It was originally a simple wrapper around Werkzeug and Jinja and has become one of the most popular Python Web application frameworks. from fl ...

Article brief introduction When learning relational database, the database in the textbook uses Oracle relational database, while I use MySQL database for other reasons. From the perspective of database type, both are relational databases, and there is not much difference in data access mode. But afte ...

Interface display Highlights: The color and length of the card can be changed randomly, and the page length layout can be adaptive. Users can click like. Get ready MySQL A message table:Message: message content; username: processed by the backend. If the submitted one is empty, set the name to ...

The role function is not special for Oracle database. However, for MySQL, the role function added in MySQL 8.0 is quite novel, which is also what many users of MySQL have been expecting The role function added in MySQL 8.0 allows DBAs to create roles, grant permissions to them, and authorize users. Using roles can greatly reduce the work of DB ...

brief introduction PV is the number of clicks, which is usually an important indicator to measure a network news channel or website or even a network news. To some extent, PV has become the most important measure for investors to measure the performance of commercial websites. PV is a visitor in 24 hours to see several pages of the site. Cas ...

Article directory 1, Setting up the environment 1. Create Maven project 2. Import dependency 1. Version lock 2. Import dependencies dependencies 3. Write entity class 2, Integration 1. Configure SqlMapConfig.xml 2. Configure springmvc.xml 3. Configure applicationContext.xml (the commonly used na ...

In the previous section, the creation of the main interface is completed. In this section, the function of adding book categories will be realized. The BookTypeAddPanel.java class file has been successfully created in the previous section, so you can write code directly in the file. Since the databa ...

1, Overview and installation of canal 1.1 briefly Can al simulates mysql slave interaction protocol, pretends to be a slave node of mysql and sends dump protocol to mysql master. After receiving the dump request, mysql master starts to push binary log to slave. Can al parses binary log objects, tha ...

HTML code: <nav class="nav1 navbar navbar-default navbar-fixed-top" style="border-Radius:0px;"> <div class="container"> <div class="navbar-header"> <a href="#" class="navbar-brand">logo</a> <button type="button" class="navbar-toggle" data-toggle="collapse" data-tar ...

A production environment mysql migration operation (I) data archivingA production environment mysql migration operation (2) mysql space release (defragmentation) The fixed time archive is added above. Now some large table disk space has not been released, resulting in larger and larger database files. N ...