Types of Oracle 19c JDBC Drivers:
When designing an Oracle application, you’ll need to consider the JDBC Driver, which is the interface between a client and server side. There are two types of JDBC drivers: client-side OCI and server-side Thin.
Both support many of the same features and extensions. For most applications, the Thin driver is the best choice. It supports Lightweight Directory Access Protocol and Secure Sockets Layer.
Server-side Thin driver Oracle 19c JDBC Driver:
Server-side Oracle 19c JDBC drivers provide maximum portability and performance. They allow your applet or application to connect to an Oracle database over SSL or TCP/IP.
In addition, this driver supports Lightweight Directory Access Protocol over SSL. It also supports non-TCP/IP networks. The JDBC server-side thin driver is used for code running on the middle tier of your application.
In some cases, the Thin driver might throw an exception while reading unexpected data from the RDBMS. The reason is that the Thin driver and the RDBMS protocol engine may be out of sync. Thus, the server-side JDBC driver might fail to close a connection.
Client-side OCI driver:
The Client-side Oracle 19c JDBC drivers are used to connect to Oracle databases on client-side Java programs. These drivers can be installed on both client and server-side Java applications.
The JDBC Server-Side Internal driver uses Java native methods to communicate with the internal SQL engine of the Oracle server.
This avoids network traffic and helps Java code to access the database faster. However, the JDBC Server-Side Internal driver is platform-specific, and it can only access the same database.
Client-side JDBC drivers support Secure Sockets Layer (SSL) encryption. They also support LDAP over SSL. You can learn more about Oracle JDBC drivers in the Oracle Net Services Administrator’s Guide.
Platform-independent Oracle 19c JDBC Driver:
If you’re developing Oracle applications, the Platform-independent Oracle 19c JDBCC Driver is an excellent choice.
This driver supports Java on the server and implements all of the new features in Oracle’s database client. It also works well with an Oracle OCI-based application.
The Oracle 19c JDBC Driver provides a convenient API to connect to the Oracle Database from Java applications.
The driver communicates with the server via Oracle Net Services, and it is packaged with the DbVisualizer libraries. The driver also supports dynamic SQL.
The JDBC server-side internal driver is fully compatible with the client-side JDBC driver. It supports all of the same extensions and features.
A server-side driver is best for most applications. It also supports Lightweight Directory Access Protocol, Secure Sockets Layer, and Transport Layer Security.
Pure Java Oracle 19c JDBC Driver:
The Pure Java with Oracle 19c JDBC driver is a platform-independent driver that supports Enterprise JavaBeans and Java stored procedures. It communicates with the database server using Oracle Net Services.
Its architecture enables a direct connection to the Oracle database. The driver implements Oracle Net Services on top of Java sockets, using TCP/IP protocol. This driver is compatible with Java applications for Windows, Mac, and Linux.
This driver has an API to connect to the Oracle database without having to install any Oracle software. It connects to the server using Oracle Net Services and is packaged with DbVisualizer.
Database connection URL:
When you are using the Oracle 19c JDBC Driver, you will need to specify a Database connection URL. This URL will be used to connect to an Oracle database.
In addition to the database connection URL, you will also need to specify the user ID and password for authentication.
You can find these settings under the Properties tab. The Properties tab includes the Protocol and OCI properties.
You can set these properties to suit your needs. Ensure that you set both properties correctly. If you do not, you may end up with a connection that is not secure.
When you are using the Oracle JDBC driver, you should make sure the connection URL matches the database name. You can also check if the port is correct by clicking on the ping button.
You can also check whether remote connections are enabled or disabled by checking the ping status on the server. If the server is not accessible, you can try disabling the Windows Firewall. The DbSchema database may not provide the latest version of the JDBC driver.