This table lists the CONNX JDBC connection string parameters that can be used when opening a connection to the CONNX JDBC Driver.
| Connection Parameter Name | Description | 
| APPLICATION | Specifies the CONNX application to use when connecting. The application can be a database within the CDD or within an entire collection of databases. | 
| CLIENTID | This is a user-defined identifier sent from the CONNX Client to the CONNX Server. It can be used to run custom procedures on the server during a connection. Use of this setting will affection connection pooling, as any identifier used here is part of the unique signature of a connection. | 
| CNXSESSIONID | This is a user-defined identifier sent from the CONNX Client to the CONNX Server. It can be used to run custom procedures on the server during a connection. Use of this setting will not affect connection pooling. A special CNXSessionID of "BYPASSCAP" will enable connections that exceed the JDBC Maximum parallel connection cap. | 
| DBKEY | This is an Rdb-only feature. The only valid option is ATTACH. If DBKEY=ATTACH is specified, then Rdb DBKEYS is not reused throughout the lifetime of a connection. | 
| DBREADONLY | A list of databases in the CDD, separated by commas, which are treated as read only. | 
| DBREADWRITE | A list of databases in the CDD, separated by commas, which are treated as read/write. | 
| DD | The name of the JDBC data source. Required. (deprecated) | 
| DSN | The name of the JDBC data source. Required. | 
| EXCLUSIVE | Connect to all databases in "exclusive" mode. | 
| GATEWAY | The name or ID address of the JDBC Server. Required. | 
| NODE | The name of the server to connect to. This option is only useful when connecting to a CDD that only has one data source in it. | 
| OEM | Key used for OEM redistributors. | 
| PORT | The port that the JDBC Server is configured to listen to. The default is 7500. | 
| PASSWORD | The CONNX password. | 
| PWD | The CONNX password (deprecated) | 
| READONLY | This option connects to all databases in the CDD in read only mode. | 
| RPC | The name of a CONNX RPC to execute right after a connection has been established. | 
| RPCBUFFERSIZE | The size of the buffer used to send data between the JDBC driver and the JDBC server. The default value is 100000 bytes. | 
| SSL | Enable TLS/SSL encryption for this JDBC Connection. Valid values are "true" and "false" | 
| UID | The CONNX UserID (deprecated) | 
| USER | The CONNX UserID. | 
| VIEWCHECK | A logical connection is made to the CDD without physically connecting to any of the data sources. All queries will return 0 rows. The defaul value is false. | 
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