This tutorial shows how to set up a data source and connect to an SQLite database using the Database Explorer app or the command line. This tutorial uses the SQLite JDBC 3.7.2 Driver to connect to an SQLite Version 3.7.17 database.
If the JDBC driver for SQLite is not installed on your computer, find the link on the Driver Installation page to install the driver. Follow the instructions to download and install this driver on your computer.
If you do not want to install a driver and want to store relational data quickly, you can use the MATLAB® interface to SQLite. For details, see Working with MATLAB Interface to SQLite.
You can set up a data source using the JDBC Data Source Configuration dialog box, which you can open from the Database Explorer app or at the command line.
Open the Database Explorer app by clicking the Apps tab on the MATLAB Toolstrip. Then, on the right of the Apps section, click the Show more arrow to open the apps gallery. Under Database Connectivity and Reporting, click Database Explorer. Alternatively, enter
databaseExplorer at the command line.
In the Data Source section, select Configure Data Source > Configure JDBC data source.
configureJDBCDataSource at the command
The JDBC Data Source Configuration dialog box opens.
In the Name box, enter a name for your data source.
(This example uses a data source named
SQLite.) You use
this name to establish a connection to your database. If you enter a name
that duplicates an existing ODBC data source name, the Database Explorer app
_JDBC to the name after you save it.
From the Vendor list, select
In the Driver Location box, enter the full path to the JDBC driver file.
In the Driver box, enter the SQLite driver
Java® class object. Here, use
Your entries for Driver and URL can vary depending on the type and version of the JDBC driver and your database. For details, see the JDBC driver documentation for your database.
Connect to the SQLite database by creating a URL string using the format
part of this string stays constant for any JDBC driver.
subprotocol is a database type, in this case,
sqlite. The last part of the URL string is
subname. For SQLite,
contains the location of the database. For example, your string is
is the full path to your SQLite database on your computer. Enter your string
in the URL box and press Enter.
Click Test. The Test Connection dialog box opens. Enter the user name and password for your database, or leave these boxes blank if your database does not require them. Click Test.
If your connection succeeds, the Database Explorer dialog box displays a message indicating the connection is successful. Otherwise, it displays an error message.
Click Save. The JDBC Data Source Configuration dialog box displays a message indicating the data source is saved successfully. Close this dialog box.
After you complete the data source setup, connect to the SQLite database using the Database Explorer app or JDBC driver and command line.
On the Database Explorer tab, in the Data Source section, click New Query.
In the Connect to a Data Source dialog box, select the data source you defined from the Data Source list. Enter a user name and password, or leave these boxes blank if your database does not require them. Click Connect.
The Database Explorer app connects to the database and displays database tables in the Data Browser pane. A data source tab appears to the right of the pane. The title of the data source tab is the data source name that you defined during the setup. The data source tab contains empty SQL Query and Data Preview panes.
Select tables in the Data Browser pane to query the database.
Close the data source tab to close the SQL query and the database connection.
To close the database connection, close all tabs that have titles
beginning with the name of the corresponding data source. For
example, if the data source name is
two tabs named
SQLite1 are open, then close both
To close all database connections, close the Database Explorer app.
Connect to an SQLite database using the configured JDBC data source,
username, and password
datasource = "SQLite"; username = "username"; password = "pwd"; conn = database(datasource,username,password);
Close the database connection.