MySQL: IP-address of the Server. Make sure, there is a mysql server running. To start, use MySQL/SettingupMySQL this guide. MySQL: 3306 is the default mysql port. No need to change it. MySQL: Name of the database. You manually need to create this database on the mysql server (use phpMyAdmin) MySQL: Username. To work properly, these programs must be added to your Mac OS X system path. To add the MySQL command prompt programs that come with MAMP to your Mac OS X system path, follow these instructions.

Summary: in this tutorial, you will learn how to use MySQL JSON data type to store JSON documents in the database.

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Introduction to MySQL JSON data type

MySQL supports the native JSON data type since version 5.7.8. The native JSON data type allows you to store JSON documents more efficiently than the JSON text format in the previous versions.

MySQL stores JSON documents in an internal format that allows quick read access to document elements. The JSON binary format is structured in the way that permits the server to search for values within the JSON document directly by key or array index, which is very fast.

The storage of a JSON document is approximately the same as the storage of LONGBLOB or LONGTEXT data.

To define a column whose data type is JSON, you use the following syntax:

Notice that a JSON column cannot have a default value. In addition, a JSON column cannot be indexed directly. Instead, you can create an index on a generated column that contains values extracted from the JSON column. When you query data from the JSON column, the MySQL optimizer will look for compatible indexes on virtual columns that match JSON expressions.

MySQL JSON data type example

Suppose, we have to track the visitors and their actions on our website. Some visitors may just view the pages and other may view the pages and buy the products. To store this information, we will create a new table called events.

Each event in the events table has an id that uniquely identifies the event. An event also has a name e.g., pageview, purchase, etc., The visitor column is used to store the visitor information.

The properties and browser columns are the JSON columns. Drivers vimicro cameras. They are used to store properties of an event and specification of the browser that visitors use to browse the website.

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Let’s insert some data into the events table:

To pull values out of the JSON columns, you use the column path operator ( ->).

This query returns the following output:

Notice that data in the browser column is surrounded by quote marks. Super image digital others driver download for windows. To remove the quote marks, you use the inline path operator (->>) as follows:

As you can see in the following output, the quote marks were removed: Srt marine driver download for windows.

To get the browser usage, you can use the following statement:

The output of the query is as follows:

To calculate the total revenue by the visitor, you use the following query:

Here is the output:

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In this tutorial, you have learned about the MySQL JSON data type and how to use it for storing JSON documents in the database.