mysql

Create MySQL native interface database connection

Since R2020b

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Syntax

conn = mysql(DataSourceName,username,password)
conn = mysql(username,password,Name,Value)

Description

conn = mysql(DataSourceName,username,password) creates a MySQL® native interface database connection using the specified data source, user name, and password. conn is a connection object.

example

conn = mysql(username,password,Name,Value) creates a MySQL native interface database connection using the specified user name and password, with additional options specified by one or more name-value pair arguments. For example, "Server","dbtb00" specifies the database server name as dbtb00.

example

Examples

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Open Live Script

Create a MySQL® native interface connection to a MySQL database. Then, import data from the database into MATLAB® and perform simple data analysis. Close the database connection.

This example assumes that you are connecting to a MySQL database using the MariaDB® C Connector driver.

Connect to the database using the data source name, user name, and password.

datasource = "MySQLNative";
username = "root";
password = "matlab";

conn = mysql(datasource,username,password)
conn = 
  connection with properties:

                  DataSource: "MySQLNative"
                    UserName: "root"

  Database Properties:

                  AutoCommit: "on"
                LoginTimeout: 0
      MaxDatabaseConnections: 0

  Catalog and Schema Information:

              DefaultCatalog: "toy_store"
                    Catalogs: ["information_schema", "mysql", "performance_schema" ... and 3 more]
                     Schemas: []

  Database and Driver Information:

         DatabaseProductName: "MySQL"
      DatabaseProductVersion: "8.0.3-rc-log"
                  DriverName: "Mariadb Connector/C"
               DriverVersion: "3.2.5"

The property sections of the connection object are:

  • Database Properties — Information about the database configuration

  • Catalog and Schema Information — Names of catalogs and schemas in the database

  • Database and Driver Information — Names and versions of the database and driver

Import all data from the table inventoryTable into MATLAB using the sqlread function. Display the first three rows of data.

tablename = "inventoryTable";
data = sqlread(conn,tablename);
head(data,3)
    productNumber    Quantity    Price       inventoryDate    
    _____________    ________    _____    ____________________

          1            1700       15      23-Sep-2014 13:38:34
          2            1200        9      09-Jul-2014 02:50:45
          3             356       17      14-May-2014 11:14:28

Determine the highest product quantity from the table.

max(data.Quantity)
ans = 9000

Close the database connection conn.

close(conn)
Open Live Script

Create a MySQL® native interface connection to a MySQL database using name-value pair arguments. Then, import data from the database into MATLAB® and perform simple data analysis. Close the database connection.

This example assumes that you are connecting to a MySQL database version 5.7.22 using the MySQL Connector/C++ driver version 8.0.15.

Connect to the database using the user name and password shown. Specify the database server name dbtb01, database name toystore_doc, and port number 3306 by setting the corresponding name-value pair arguments.

username = "root";
password = "matlab";

conn = mysql(username,password,'Server',"dbtb01", ...
    'DatabaseName',"toystore_doc",'PortNumber',3306)
conn = 
  connection with properties:

                    Database: "toystore_doc"
                    UserName: "root"

  Database Properties:

                  AutoCommit: "on"
                LoginTimeout: 0
      MaxDatabaseConnections: 151

  Catalog and Schema Information:

              DefaultCatalog: "toystore_doc"
                    Catalogs: ["information_schema", "mysql", "performance_schema" ... and 3 more]
                     Schemas: []

  Database and Driver Information:

         DatabaseProductName: "MySQL"
      DatabaseProductVersion: "5.7.22"
                  DriverName: "MySQL Connector/C++"
               DriverVersion: "8.0.15"

The property sections of the connection object are:

  • Database Properties — Information about the database configuration

  • Catalog and Schema Information — Names of catalogs and schemas in the database

  • Database and Driver Information — Names and versions of the database and driver

Import all data from the table inventoryTable into MATLAB using the sqlread function. Display the first three rows of data.

tablename = "inventoryTable";
data = sqlread(conn,tablename);
head(data,3)
ans=3×4 table
    productNumber    Quantity    Price        inventoryDate    
    _____________    ________    _____    _____________________

          1            1700      14.5     "2014-09-23 09:38:34"
          2            1200         9     "2014-07-08 22:50:45"
          3             356        17     "2014-05-14 07:14:28"

Determine the highest product quantity from the table.

max(data.Quantity)
ans = 9000

Close the database connection conn.

close(conn)

Input Arguments

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Data source name, specified as a character vector or string scalar. Database Explorer creates this name when you use the app to make a connection and store your credentials as part of the data source.

Username required to access the database, specified as a character vector or string scalar. If no username is required, specify an empty value "". Provide this username if you do not store it as part of the data source when using the Database Explorer app to make a connection.

Password required to access the database, specified as a character vector or string scalar. If no password is required, specify an empty value "". Provide this password if you do not store it as part of the data source when using the Database Explorer app to make a connection.

Data Types: char | string

Name-Value Arguments

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Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: conn = mysql(username,password,"Server","dbtb01","PortNumber",3306,"DatabaseName","toystore_doc") creates a MySQL native interface database connection using the database server dbtb01, port number 3306, and database name toystore_doc.

Database server name or address, specified as the comma-separated pair consisting of 'Server' and a string scalar or character vector.

Example: "dbtb00"

Data Types: char | string

Port number, specified as the comma-separated pair consisting of 'PortNumber' and a numeric scalar.

Example: 3306

Data Types: double

Database name, specified as the comma-separated pair consisting of 'DatabaseName' and a string scalar or character vector. If you do not specify a database name, the mysql function connects to the default database on the database server.

Example: "toystore_doc"

Data Types: char | string

Version History

Introduced in R2020b

See Also

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