Establishing a Connection
Creating a JDBC Data Source
You can create a JDBC data source to connect from your Java application. Creating a JDBC data source based on the CData JDBC Driver for Oracle consists of three basic steps:
- Add the driver JAR file to the classpath. The JAR file is located in the lib subfolder of the installation directory. Note that the .lic file must be located in the same folder as the JAR file.
- Provide the driver class. For example:
cdata.jdbc.oracleoci.OracleOciDriver
- Provide the JDBC URL. For example:
jdbc:oracleoci:User=scott;Password=tiger;Server=127.0.0.1;Port=1521; or jdbc:cdata:oracleoci:User=scott;Password=tiger;Server=127.0.0.1;Port=1521;
You can use the second format above whenever there is a conflict in your application between drivers using the same URL format to ensure you are using the CData driver. The URL must start with either "jdbc:oracleoci:" or "jdbc:cdata:oracleoci:" and can include any of the connection properties in name-value pairs separated with semicolons.
Connecting to Oracle OCI
Oracle OCI supports the following connection types:- Oracle Server
- OracleTNS
- LDAP
Oracle Server
After you have added the appropriate libraries to your PATH (as described in Before You Connect), set these properties:- User: The user Id provided for authentication with the Oracle database.
- Password: The password provided for authentication with the Oracle database.
- Port: The port used to connect to the server hosting the Oracle database.
- ServiceName: The service name of the Oracle database. You can obtain this value by querying global_name (select * from global_name) using the Oracle SQL*PLUS command line.
- Server: The host name or IP address of the server hosting the Oracle database.
OracleTNS
To authenticate via OracleTNS, set these properties:- User: The user Id provided for authentication with the Oracle database.
- Password: The password provided for authentication with the Oracle database.
- DataSource: The connect descriptor (TNS connect string) or a connection name identifies the database you need to connect to. You can find these values in your tnsnames.ora file.
For example,
DataSource='(DESCRIPTION=(ADDRESS=(protocol_address_information))(CONNECT_DATA= (SERVICE_NAME=service_name)))'
LDAP
To authenticate via the LDAP server, set these properties.- User: The user Id of a user account associated with the Oracle database.
- Password: The password associated with the specified user account.
- LDAPUri: The LDAP URI associated with the LDAP server you want to connect to.
- LDAPUser: The name of the user account on the specified LDAP server that you want to use to connect to Oracle OCI data.
- Optional if your system administrator allows anonymous LDAP logins.
- LDAPPassword: The password associated with the specified LDAP user.
- Optional if your system administrator allows anonymous LDAP logins.
Your connection string should look similar to this:
LDAPUri=ldap://myldap.com:389/SERVICE_EXMPL,cn=OracleContext,dc=example,dc=com; User=ORACLEUSER; Password=OracleUserPassword;