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Powering the Web: Two Decades of Open Source Publishing With WordPress and MySQL

Percona

While not the first open source content management system (CMS), WordPress caught on like nothing before and helped spread open source to millions. MySQL was founded in 1995 and went open source in 2000. MySQL was the database for phpWebLog, for example, way back in 2000. If you wanted WordPress, you had to use MySQL.

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Fixing Misplaced Rows in a Partitioned Table

Percona

mysql> SELECT * FROM salaries where emp_no=10001 and from_date='1999-06-23'; + --+ --+ + + | emp_no | salary | from_date | to_date | + --+ --+ + + | 10001 | 84917 | 1999-06-23 | 2000-06-22 | + --+ --+ + + 1 row in set (0.00 sec) But once the data is misplaced, it does not return any rows.

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Using Jobs to Perform Schema Changes Against MySQL Databases on K8s

Percona

Assuming that there is already a Secrets object holding all system user passwords, the concept is really simple. Copyright (c) 2009-2023 Percona LLC and/or its affiliates Copyright (c) 2000, 2023, Oracle and/or its affiliates. mysql> create database if not exists atsaloux; Query OK, 1 row affected (0.02 copy_rows:10000:0.25,swap_tables:10000:0.25,update_foreign_keys:10000:0.25,analyze_table:10000:0.25

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Dealing With “Too Many Connections” Error in MySQL 8

Percona

Over the years of being a DBA, I had to deal with all kinds of problems in the database. Still, the users keep falling into this trap, maybe because of a poorly configured database, a change in the application components, or just because of a sudden increase of connections in the application. A lot has been written about this error.

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Proof of Concept: Horizontal Write Scaling for MySQL With Kubernetes Operator

Percona

The main reason behind this is that MySQL is a relational database system (RDBMS), and any data that is going to be written in it must respect the RDBMS rules. As well, very few cases are in need to have a full system/solution to provide scalability with sharding. The POC Why this POC?

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The Different Software Testing Types Explained

Testsigma

Examples of Dynamic Testing- Unit testing, System testing, Integration testing, Performance testing, Security testing. Test cases are created, then run on the system and the actual results are validated against the expected results. How well the application will perform under stressful conditions of Database, Users, Data Load etc.

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How to Install or Upgrade Percona Server for MySQL/MySQL 8 to a Specific Version on Debian/Ubuntu

Percona

The reason might be application requirements, compatibility issues, or MySQL bug fixes, or we want the same MySQL version to be installed on all database instances in the cluster, regardless of what actually is the latest version available. 2023-06-05T23:31:46.511283Z 0 [System] [MY-013169] [Server] /usr/sbin/mysqld (mysqld 8.0.28-20)

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