In this article, we’re going to share the MySQL tutorial how to use the MySQL GROUP BY function as well as this function usage together with and without aggregate functions. Contents What is the meaning of the GROUP BY clause in MySQL? GROUP BY syntax in MySQL Simple GROUP BY example GROUP BY and the […]

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There are two types of IFs in MySQL: the IF statement and the IF function. Both are different from each other.  In this article, we will explain their diversities and show usage examples. Also, we will review other MySQL functions. Contents MySQL IF statements MySQL IF-THEN statement MySQL IF-THEN-ELSE statement MySQL IF-THEN-ELSEIF-ELSE statement Examples of […]

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In this article, we are going to talk about the WHERE clause and how to use it in MySQL. Besides SELECT, the scope of the WHERE clause includes the UPDATE and DELETE statements. The WHERE clause is indispensable for quality work with MySQL databases. That’s why the current article will deal with this clause and […]

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The festive season has come to an end, but Devart is still receiving presents. We have great news that we would like to share. dbForge Studio for MySQL gained nine awards from G2. The collection of dbForge Studio for MySQL counts nine new badges: According to G2 users reviews, dbForge Studio for MySQL attracts by […]

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If you are looking to improve the performance of MySQL databases in your software, you may need to know all the differences between InnoDB and MyISAM, two well-known types of MySQL storage engines. And if you are about to choose one of them, we believe you would like to find out what each of them […]

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While exporting the table with MySQL native utility, we don’t have any control on the process, and also there will be no progress update as well on the process completion. So when exporting the larger table will consume high resource utilization and also the disk space usage will also be high.

MySQL shell utility will make the process easier. It will export the table and we can import the data back with a parallel thread and also will provide the current progress status on export/import progress.

util.exportTable() utility was introduced in Shell – 8.0.22 version, will export the data in a controlled manner. We can store the data in either local or Cloud Infrastructure Object Storage bucket as well.

We will see about the compression ratio along with the time taken for native MySQL vs Shell utility

Feature :

• Compression
• Progress status
• Supported output …

We all tried various alternative methods for modifying the table structure, but pt-online-schema-change (pt-osc) is the most convenient and preferred method for performing the alter online. It has more granular control too. But it may lead to data loss if proper precautionary steps are not taken care of.

In this blog, we are going to modify a column to a unique key using pt-osc, below I have shared the table structure.

mysql> show create table test\G
* 1. row *
Table: test
Create Table: CREATE TABLE test (
Personid int(11) NOT NULL AUTO_INCREMENT,
LastName varchar(255) NOT NULL,
FirstName varchar(255) DEFAULT NULL,
Age int(11) DEFAULT NULL,
PRIMARY KEY (Personid)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=latin1
1 row in set (0.00 sec)

I have inserted the data of 1000 rows using …

The article provides an overview of the backup types available in MySQL and describes how-to examples of using the mysqldump command-line utility to take a backup of the database, tables, data, or schema and to restore the MySQL database. In addition, you can view how to generate a database backup with MySQL Workbench and how […]

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More good news coming our way! It is inspiring to see that all the hard work we put into our products pays off as happy users and good reviews bring us more and more recognition on independent software reviewing platforms and marketplaces. Today, the products in question are dbForge Studios for MySQL and Oracle, which […]

The post Topping the Charts Again: dbForge Studios Awarded G2 High Performer & Leader Fall 2021 appeared first on Devart Blog.

In the article, we are going to discuss data types including string, numeric, date and time, spatial, and JSON supported by MySQL. Also, we’ll provide examples of their usage and see how to change a data type for the table column using dbForge Studio for MySQL. Contents What is a Data Type Data Types in […]

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