Detailed solution to The INFORMATION_SCHEMA.xxx feature is disabled; see the documentation for show_compatibility_56

Article directory 1. Reproducing the error 2. Analysis errors 3. Solve the problem 1. Reproduction error Today, when using MySQL to query global variables, the following error was reported: mysql> select * from information_schema.global_variables; ERROR 3167 (HY000): The ‘INFORMATION_SCHEMA.GLOBAL_VARIABLES’ feature is disabled; see the documentation for ‘show_compatibility_56’ That is, The ‘INFORMATION_SCHEMA.GLOBAL_VARIABLES’ feature is disabled; see […]

The MonthPicker and DatePicker of antd start at any time, and the maximum span of the selected continuous time is 1 year. disabledDate is a date that cannot be selected.

Problem description: For the date component, select the start of the month at any time, but you must select consecutive months within a year! ! ! Achieve results Solution Insert code snippet here <div style=”display: flex”> <a-month-picker v-model=”form.startValue” placeholder=”Start” @openChange=”handleStartOpenChange” /> <a-month-picker v-model=”form.endValue” :disabled-date=”disabledEndDate” placeholder=”End” :open=”endOpen” @openChange=”handleEndOpenChange” /> </div> import dayjs from “dayjs”; export default […]

mysql database engine-Inodb, MyISAM

mysql database engine-Inodb, MyISAM 1. What is a database engine ? Database Engine refers to the core module or software component responsible for data storage, management and access in the database system. It provides operations such as creating, modifying, querying, and deleting databases, and is responsible for processing functions such as data storage, indexing, transaction […]

Disadvantages of UUID and Snowflake Algorithm

question General universal solution snowflake algorithm picture Foreword The unique system ID is a problem we often encounter when designing a system, and we often struggle with this problem. This article is to provide you with an idea for generating a distributed unique global ID generation solution. I hope it can help you. If there […]

Solve import matplotlib; matplotlib.use(Agg) # pylint: disable=multiple-statements

Table of Contents Solve import matplotlib; matplotlib.use(‘Agg’) # pylint: disable=multiple-statements Background of the problem solution Summarize Solve import matplotlib; matplotlib.use(‘Agg’) # pylint: disable=multiple-statements In the field of data visualization in Python, matplotlib is a very powerful and popular library. However, sometimes in the process of using ??matplotlib??, we may encounter some problems. For example, in […]

NISACTF 2022-WEB part wp

easyssrf url=file:///flag url=file:///fl4g ?file=../../../flag checkin source code: error_reporting(0); include “flag.php”; // NISACTFWelcome to if (“jitanglailo” == $_GET[ahahahaha] & amp; + !! & amp; ” Flag!N1SACTF” == $_GET[Ugeiwocuishiyuan] ) { //tnnd! weishenme b echo $FLAG; } show_source(__FILE__); ?> This question seems a bit strange, look at the wp of other masters Save the source code as […]

SpringCloud Alibaba – Seata realizes high availability and remote disaster recovery

Table of Contents 1. Seata high availability and remote disaster recovery 1.1. Theory 1.2. Simulate remote disaster recovery TC cluster 1.2.1. Simulate the implementation of two computer rooms 1.2.2. Configure transaction group mapping 1.2.3. Microservices remove nacos configuration 1.2.4. Start all microservices 1. Seata high availability and remote disaster recovery 1.1, theory Seata’s high availability […]