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How to Create a New User Account in MySQL and Grant Permissions on a Database

This article provides a complete overview of how to create a new user account in MySQL and grant different types of privileges on a MySQL database. Learn the basics of user account management and find hints. Introduction First, let’s figure out why we need users and privileges. When you install MySQL Server on your system […]

The post How to Create a New User Account in MySQL and Grant Permissions on a Database appeared first on Devart Blog.

5.5M Key Lookups per second on 16 VCPU VMs

 As introduced in a previous blog RonDB enables us to easily execute benchmarks on RonDB using the Sysbench benchmark.


In this blog I will present some results where the RonDB cluster had 2 data nodes, each using a r5.4xlarge VM in AWS that has 16 VCPUs and 128 GB memory. The Sysbench test uses SQL to access RonDB.


In this particular test case we wanted to test the Key-Lookup performance using SQL. Key-Lookup performance is essential in the RonDB use case as an online Feature Store in Hopsworks.


In this case we use the …

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MySQL NDB Cluster Replication Topologies (Part – II)

In the previous blog, we were able to setup a MySQL NDB Cluster replication between one source and one replica cluster. In this blog, we will discuss about replication between one source and three replica clusters.

Note: With MySQL version (8.0.21), we have started changing the term “master” to “source”, the term “slave” to “replica”. So in this blog we will refer these terms ‘source’ and ‘replica’ wherever applicable.

The main advantage of this type of topology is good for giving ‘local’ reads in geographically distant areas as well as increased redundancy in case of issues.

Let’s create four MySQL NDB Cluster with the following environment, from which one will be termed as ‘source’ cluster while the rest will be ‘replica’ clusters.

  • MySQL NDB Cluster version (Latest GA version)
  • 1 Management node
  • 4 Data nodes …
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MySQL NDB Cluster Replication Topologies (Part – I)

In this blog series, we will discuss various MySQL NDB Cluster replication topologies possible with a demonstration. We will start with a simple case i.e. one source (formerly called master) and one replica (formerly called slave).

Note: With MySQL version (8.0.21), we have started changing the term “master” to “source”, the term “slave” to “replica”. So in this blog we will refer these terms ‘source’ and ‘replica’ wherever applicable.

Let’s create two MySQL NDB Cluster with the following environment, from which one will be termed as ‘source’ cluster while the other one will be ‘replica’ cluster. For now, let’s stick to the identical environment from both the cluster. Later in the following blog series, we will change the environments and will run the replication.

  • MySQL NDB Cluster version (Latest GA version)
  • 1 Management node
  • 4 Data nodes …
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Creating a New Database in MySQL: Tutorial with Examples

The article provides a detailed overview of how to create a database in MySQL using different methods and tools (including the Command Line, Workbench, and dbForge Studio for MySQL). MySQL is a relational database management system based on SQL. It is developed, distributed, and supported by the Oracle Corporation. MySQL is free and open-source software […]

The post Creating a New Database in MySQL: Tutorial with Examples appeared first on Devart Blog.

Understanding Indexes in MySQL: Part Three

This blog post is the third part of the series of blogs about indexes in MySQL. In the second part of the blog post series about MySQL indexes, we covered indexes and storage engines and touched upon some PRIMARY KEY considerations. The discussion included how to match a column prefix, some FULLTEXT index considerations, and how you should use B-Tree indexes with wildcards and how to use ClusterControl to monitor your queries' performance, subsequently, indexes. 

 

In this blog post, we will go into some more details about indexes in MySQL: we will …

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Understanding MySQL Architecture

The architecture of the world’s most popular open source database system is very important for the Information Technology people. There are many reasons for MySQL’s popularity around the world, but one of the main reasons is its architecture, while there are many big players such as Oracle, Microsoft SQL and DB2, MySQL’s architecture makes it as unique and preferred choice for most of the developers. In this article, we are going to discuss about of the internal architecture of the MySQL relational database management system. The article is for novice database administrators, database developers, software developers and those who are interested to work with MySQL database.Major components The MySQL architecture describes how the different components of a MySQL system relate to one another. The MySQL architecture is basically a client – server system. MySQL database server is the server and the applications which are connecting to MySQL …

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May 20 - Live Webinar - What's New in MySQL up to 8.0.24 and 8.0.25

Join us on May 20, 2021 at 9AM PST for a live webinar focused on the new MySQL 8.0 features. The webinar will cover the key new features introduced in MySQL 8.0 up to the recently released 8.0.24 and 8.0.25.

The latest versions introduce several new improvements and updates for Optimizer, GIS, InnoDB, Performance schema, Replication, Group Replication, Router, MTR Testsuite, and more. The webinar will highlight the key benefits of each and best practices on how to use them.

Register now

  • Date: May 20, 2021 @9AM PST
  • Speaker: Harsh Nayak 

 

Additional Resources:

Top MySQL 8.0.24 blogs:

Overview:  …

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May 20 - Live Webinar - What's New in MySQL up to 8.0.24 and 8.0.25

Join us on May 20, 2021 at 9AM PST for a live webinar focused on the new MySQL 8.0 features. The webinar will cover the key new features introduced in MySQL 8.0 up to the recently released 8.0.24 and 8.0.25. The latest versions introduce several new improvements and updates for Optimizer, GIS, InnoD...

New Data Import feature in MySQL Database Service

The MySQL Engineering team is proud to announce the Data Import feature in MySQL Database Service (MDS) and HeatWave.

The new Data Import enables faster and easier migrations to the MySQL Database Service. You can migrate from virtually any MySQL source, like AWS RDS/Aurora or MySQL on-premise, and from different versions, including 8.0, 5.7, or 5.6, directly to MySQL Database Service.

To migrate your existing MySQL databases, you perform two easy steps, in sequence or in parallel:

  1. Use MySQL Shell to export data from an existing MySQL source into an OCI Object Storage bucket;
  2. In MDS, create a new MySQL DB System referencing the bucket using a Pre-Authenticated Request (PAR). The data is imported automatically!

Together with MySQL Shell, MDS Data Import functionality dramatically reduces …

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