EXPLAIN INTO The INTO clause for EXPLAIN introduced in MySQL 8.1 allows storing the output of an EXPLAIN query in a user variable, instead of returning it to the client. It is currently only supported for the JSON format, but that should be sufficient for most use cases. With the EXPLAIN output stored in a […]

MySQL NDB Cluster 8.3.0 introduces the use of TLS to secure the network protocols used inside MySQL NDB Cluster. NDB Cluster is a distributed database system that provides very high availability and real-time performance, and this important change makes it possible to deploy cluster nodes not just on trusted, private networks, but also on untrusted networks […]

In this article, we'll briefly review some advantages of SQL Azure, a Microsoft cloud-based SQL database service, and explore how to export and import data between Azure SQL and MySQL server using a universal ODBC driver for SQL Azure and a powerful MySQL tool - dbForge Studio for MySQL.

The post How to Import/Export MySQL Data to SQL Azure: Using ODBC Driver for Data Migration appeared first on Devart Blog.

52 + 52 = 104. A letter from Josh. OpenLampTech is a media and content source for PHP, MySQL, and the LAMP stack.

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As you know, one of the most eagerly waited features was released with MySQL 8.2: the transparent read/write splitting. In this post, we’ll look at how to use it with MySQL-Connector/Python. Architecture To play with our Python program, we will use an InnoDB Cluster. This is an overview of the cluster in MySQL Shell: JS […]

In this article you will see how to use MySQL 8.2 transparent read/write splitting using MySQL Connector/Python and a MySQL InnoDB Cluster

As you know, one of the most eagerly waited features was released with MySQL 8.2: the transparent read/write splitting.

In this post, we’ll look at how to use it with MySQL-Connector/Python.

Architecture

To play with our Python program, we will use an InnoDB Cluster.

This is an overview of the cluster in MySQL Shell:

JS > cluster.status()
{
    "clusterName": "fred", 
    "defaultReplicaSet": {
        "name": "default", 
        "primary": "127.0.0.1:3310", 
        "ssl": "REQUIRED", 
        "status": "OK", 
        "statusText": "Cluster is ONLINE and can tolerate up to ONE failure.", 
        "topology": {
            "127.0.0.1:3310": {
                "address": "127.0.0.1:3310", 
                "memberRole": "PRIMARY", …

With the release of Percona XtraBackup 8.0.34-39, Percona XtraBackup (PXB) allows a backup on server version 8.0.35 and higher. We have removed the server version check because the MySQL 8.0 series has transitioned to bug fixes.A feature change in the MySQL 8.0 series, such as the redo log record structure, could cause PXB to fail […]

In last week’s OpenLampTech newsletter issue #103, we have several fantastic reads and many interesting stories to share. Thanks for reading.

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In Alan Beaulieu’s wonderful book Learning SQL: Generate, Manipulate, and Retrieve Data, he uses a SQL 1 to demonstrates a CROSS JOIN in MySQL counting from 1 to 100. My students always find it difficult to read because the subqueries take so much space it makes it difficult to see the process, for example he gives this SQL 1 solution:

SELECT ones.x + tens.x + 1 AS counter
FROM
 (SELECT 0 AS x UNION ALL
  SELECT 1 AS x UNION ALL
  SELECT 2 AS x UNION ALL
  SELECT 3 AS x UNION ALL
  SELECT 4 AS x UNION ALL
  SELECT 5 AS x UNION ALL
  SELECT 6 AS x UNION ALL
  SELECT 7 AS x UNION ALL
  SELECT 8 AS x UNION ALL
  SELECT 9 AS x ) ones CROSS JOIN
 (SELECT 0 AS x UNION ALL
  SELECT 10 AS x UNION ALL
  SELECT 20 AS x UNION ALL
  SELECT 30 AS x UNION ALL
  SELECT 40 AS x UNION ALL
  SELECT 50 AS x UNION ALL
  SELECT 60 AS x UNION ALL
  SELECT 70 AS x UNION ALL
  SELECT 80 AS x UNION ALL
  SELECT 90 AS x ) tens
ORDER BY counter;

While anybody with a …