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  Introduce Mycat for PXC clusters and build a complete high-availability cluster architecture

  MySQL Cluster Middleware compares building PXC cluster under CentOS8 demonstrates how to build a three-node PXC cluster from scratch. However, it is not enough to build PXC clusters, because in practical enterprise applications, there may be multiple PXC clusters, each of which is

  2022-06-01 22:43:37 Views: 283
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  Build a highly available Replication cluster to archive a large amount of cold data

  With the continuous growth of hot and cold data separation business, the data in cluster fragments will also increase with the passage of time, a considerable part of which is rarely used, such as order records, transaction records, commodity reviews and other data from a few years ago. This part of the data is called cold data, on the contrary, it is often used.

  2022-06-01 22:43:13 Views: 214
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  Detailed explanation of various backup and restore postures of database

  The cold backup and hot backup data export of the database is not exactly equal to the data backup: data export refers to the reverse data in the database into SQL statements for export, so the export is the SQL file. It is often used to migrate data from one system to another, in order to shield the differences between systems.

  2022-06-01 22:43:01 Views: 279
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  # IT star is not a dream # [Web development practice starts from 0] SpringBo

  Directory: 1. SpringBoot integrates MyBatis and MyBatisPlus2. Configure and run the code generation tool 3. Unit test CRUD function of Service and Mapper 4. REST interface calls database read and write function 5

  2022-06-01 22:42:43 Views: 276
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  Common errors and Solutions of Flyway version Management Database

  Flyway is a database versioning management tool that automates DB Migration upgrades through SQL scripts, supports independent operation, and can also be integrated with build tools or Spring development environments. Summarize common mistakes in the actual development process, share solutions and build

  2022-06-01 22:42:43 Views: 284
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  MyBatis Plus Generator generates entity

  When using the MyBatis database persistence layer framework, we often use MyBatis Plus and the code generators it provides to simplify development and improve efficiency. When Entity is generated, the policy configuration of the code generator provides a lombok property that can specify whether or not

  2022-06-01 22:42:39 Views: 230
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  Architecture and user Management of Oracle Database

  1. Oracle architecture database architecture refers to the composition and working process of the database, as well as the organization and management mechanism of the data in the database. In order to understand the architecture of the Oracle database, we must understand the main components and important concepts of the Oracle system. 1 、 Oracle

  2022-06-01 22:42:15 Views: 258
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  Oracle RMAN backup to AWS Cloud

  The first attempt to back up an oracle database to the AWS cloud used to be to a tape library or disk, but now it is more convenient to have a cloud. The main purpose here is to use AWS's S3 storage as a SBT device for backup. As for what is AWS and what is S3, please refer to

  2022-06-01 22:42:15 Views: 236
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  Oracle trigger learning record

  1. This is the rule of oracle and cannot operate on tables that execute triggers. You can operate on new.xxx, but for oracle row-level triggers (for each row), you can't do any operations on this table, including the reading principle: in before I

  2022-06-01 22:42:14 Views: 286
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  Oracle 11g SYSTEM tablespace explosion problem

  Oracle 11g SYSTEM table space explosion problem 1. View the top 9 segments of SYSTEM tablespace: SQL > set lines 120SQL > col owner for a30SQL > col segment_

  2022-06-01 22:42:14 Views: 248
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  USING CURRENT LOGFILE has been

  1. Oracle 19c alarm log 2020-01-19 20-20-40 purl 26.193000 + 08:00Warning: ALTER DATABASE RECOVER MANAGED STANDBY DA

  2022-06-01 22:42:05 Views: 253
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  CentOS 7 deploys Oracle 12c Enterprise Edition Database

  Matters needing attention in installing Oracle 12c1 and CentOS 7 operating system since this installation of Oracle 12c software is implemented on CentOS 7 system, then install CentOS 7 operating system first, the installation requirements are as follows:

  2022-06-01 22:42:05 Views: 290
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  About Oracle JDBC driver version, JDK version, database version pair

  Description of the corresponding relationship among Oracle JDBC driver version, JDK version and database version: 1. How to view the Oracle JDBC driver version (Oracle JDBC driver is provided with the Oracle database server) (user: Oracl

  2022-06-01 22:42:05 Views: 297
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  User and Group Management of novice Learning Linux

  First, the basic introduction of linux user and group management. 1. Any user who wants to use the Linux system has to apply for an account from the administrator. The management of these accounts is the management of users. The so-called group is a collection of multiple accounts. User and group management can improve the efficiency and efficiency of user management.

  2022-06-01 22:41:34 Views: 242
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  EBS R12 enables SSL/TLS or HTTPS protocol access

  Enabling SSL or TLS in Oracle E-Business Suite Release 12 due to special needs, local EBS needs to be accessed via public network. For security reasons, SSL/TLS must be enabled. Everything is O

  2022-06-01 22:41:34 Views: 215
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  CentOS7 install Oracle-12c

  1. Add a hard disk to the virtual machine and format [root@localhost ~] # systemctl stop firewalld.service # # turn off the firewall [root@localhost ~] #

  2022-06-01 22:41:34 Views: 275
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  Common library of C++

  C++ commonly used Library C++ Resources Daquan provides a summary list of C++ frameworks, libraries and resources, including: standard library, Web application framework, artificial intelligence, database, image processing, machine learning, logging, code analysis, etc. Standard library C++ standard library, including STL containers

  2022-06-01 22:41:13 Views: 245
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  Order by ordering and substitution variables on the basis of SQL (6)

  Use the ORDER BY clause to sort:-ASC: ascending order, default-DESC: descending ORDER BY clause at the end of the SELECT statement, you can use column aliases: 1. Find numbers with wages between 7000 and 10000 and remove duplicates, and sort se in ascending order

  2022-06-01 22:41:13 Views: 267
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  TPCC test record of Dameng database

  TPCC test record test environment of Dameng database the main purpose of this article is to introduce the steps of using benchmarksql tool for TPCC testing. Tool version: benchmarksql-4.1.1 server: Huawei Taishan v1CPU: Hayes 16

  2022-06-01 22:41:10 Views: 223
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  Grand opening of the first batch of 5G Standard release and Industry Promotion Conference in China

  The 17th CCSA General meeting of 5G Standard release and Industry Promotion, sponsored by China Communications Standards Association, was held in Beijing on the 9th, at which China's first batch of 14 5G core standards were released, covering core network, wireless access network, carrier network, antenna, terminal and other fields, fully in line with the global 5G.

  2022-06-01 22:41:09 Views: 206