How can you connect to a database from an application?

How can you connect to a database from an application?

Applications get a database connection from a connection pool by looking up a data source using the Java Naming and Directory Interface (JNDI) and then requesting a connection. The connection pool associated with the data source provides the connection for the application.

Can an application access another application’s database directly?

4 Answers. You can use the same database only if you created the running application database in custom content provider. You cannot directly access the database from running application.

Can you access a database using the Internet?

People can open the web database in Access, and then use the client objects. This is an effective way to share a database, and also opens new opportunities for working together over the Web.

What are the steps to connect to a database in Java?

The fundamental steps involved in the process of connecting to a database and executing a query consist of the following:

1. Import JDBC packages.
2. Load and register the JDBC driver.
3. Open a connection to the database.
4. Create a statement object to perform a query.
5. Execute the statement object and return a query resultset.

How can I access my content provider from another application?

Uri yourURI = Uri. parse(“content://com.example.customcp/YourDatabase”); ContentProviderClient yourCR = getContentResolver(). acquireContentProviderClient(yourURI); Access the content provider as you would normally from App A.

What is the content provider in Android?

A content provider manages access to a central repository of data. A provider is part of an Android application, which often provides its own UI for working with the data. However, content providers are primarily intended to be used by other applications, which access the provider using a provider client object.

How to connect to a database from a different computer?

Connecting remotely means running the SQL Command Line (SQL*Plus) on one computer (the remote computer), and then initiating a connection to Oracle Database XE on a different computer. To initiate a remote connection from the SQL Command Line using the Oracle Database XE:

How to connect to a remote database using SQL Server?

In SQL Server Configuration Manager, expand SQL Server Network Configuration, and then click on the server instance you want to configure. In the right pane, double-click TCP/IP. In the TCP/IP Properties dialog box, click the IP Addresses tab.

Can you connect to SQL Server from another computer?

To connect to SQL Server from another computer when a firewall is on, you must open a port in the firewall. Opening ports in your firewall can leave your server exposed to malicious attacks. Be sure to understand firewall systems before opening ports. For more information, see Security Considerations for a SQL Server Installation.

How to access a database from a web application?

You create the data source using the Application Server Admin Console, following this procedure: Expand the JDBC node. Select the JDBC Resources node. Click the New… button. Type jdbc/BookDB in the JNDI Name field. Choose PointBasePool for the Pool Name. Click OK.