mysql
Description
creates a MySQL® native interface database connection using the specified data source, user
name, and password. conn
= mysql(datasource
,username
,password
)conn
is a connection
object.
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, conn
= mysql(username
,password
,Name,Value
)"Server","dbtb00"
specifies the database server name as
dbtb00
.
Examples
Connect to MySQL Database Using MySQL Native Interface
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 configurationCatalog and Schema Information
— Names of catalogs and schemas in the databaseDatabase 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)
Connect to MySQL Database Using MySQL Native Interface and Additional Options
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 configurationCatalog and Schema Information
— Names of catalogs and schemas in the databaseDatabase 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
datasource
— Data source name
character vector | string scalar
Data source name, specified as a character vector or string scalar. Specify the name of an existing data source.
Example: "myDataSource"
Data Types: char
| string
username
— User name
character vector | string scalar
User name required to access the database, specified as a character vector or string scalar.
If no user name is required, specify an empty value ""
.
Data Types: char
| string
password
— Password
character vector | string scalar
Password required to access the database, specified as a character vector or string scalar. If
no password is required, specify an empty value ""
.
Data Types: char
| string
Name-Value Arguments
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
.
Server
— Database server name
"localhost"
(default) | string scalar | character vector
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
PortNumber
— Port number
3306
(default) | numeric scalar
Port number, specified as the comma-separated pair consisting of
'PortNumber'
and a numeric scalar.
Example: 3306
Data Types: double
DatabaseName
— Database name
""
(default) | string scalar | character vector
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
MATLAB 명령
다음 MATLAB 명령에 해당하는 링크를 클릭했습니다.
명령을 실행하려면 MATLAB 명령 창에 입력하십시오. 웹 브라우저는 MATLAB 명령을 지원하지 않습니다.
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