29. IBM Informix 
29.1. Informix Version Support
Compatible with IBM Informix 9.70 and newer. The driver supports industry-standard Distributed Relational Database Architecture (DRDA) connectivity only.
29.2. Connection Options
29.2.1. Authentication
Property | Description |
AuthScheme | The authentication mechanism that the provider will use to authenticate with Informix. |
Server | The name of the DB2 server. |
Port | The port used to connect to the server hosting the database. |
User | A database user. |
Password | The user's password. |
Database | The name of the DB2 database. |
UseSSL | This field sets whether SSL is enabled. |
AlternateServers | This property allows you to specify multiple servers in addition to the one configured in Server and Port . Specify both a server name and port; separate servers with a comma. |
29.2.2. SSL
Property | Description |
SSLClientCert | The TLS/SSL client certificate store for SSL Client Authentication (2-way SSL). |
SSLClientCertType | The type of key store containing the TLS/SSL client certificate. |
SSLClientCertPassword | The password for the TLS/SSL client certificate. |
SSLClientCertSubject | The subject of the TLS/SSL client certificate. |
SSLServerCert | The certificate to be accepted from the server when connecting using TLS/SSL. |
29.2.3. SSH
Property | Description |
SSHAuthMode | The authentication method to be used to log on to an SFTP server. |
SSHClientCert | A certificate to be used for authenticating the user. |
SSHClientCertPassword | The password of the SSHClientCert certificate if it has one. |
SSHClientCertSubject | The subject of the SSH client certificate. |
SSHClientCertType | The type of SSHClientCert certificate. |
SSHServer | The SSH server. |
SSHPort | The SSH port. |
SSHUser | The SSH user. |
SSHPassword | The SSH password. |
SSHServerFingerprint | The SSH server fingerprint. |
UseSSH | Whether to tunnel the Informix connection over SSH. Use SSH. |
29.2.4. Firewall
Property | Description |
FirewallType | The protocol used by a proxy-based firewall. |
FirewallServer | The name or IP address of a proxy-based firewall. |
FirewallPort | The TCP port for a proxy-based firewall. |
FirewallUser | The user name to use to authenticate with a proxy-based firewall. |
FirewallPassword | A password used to authenticate to a proxy-based firewall. |
29.2.5. Logging
Property | Description |
Logfile | A filepath which designates the name and location of the log file. |
Verbosity | The verbosity level that determines the amount of detail included in the log file. |
LogModules | Core modules to be included in the log file. |
MaxLogFileSize | A string specifying the maximum size in bytes for a log file (for example, 10 MB). |
MaxLogFileCount | A string specifying the maximum file count of log files. |
29.2.6. Schema
Property | Description |
Location | A path to the directory that contains the schema files defining tables, views, and stored procedures. |
BrowsableSchemas | This property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC. |
Tables | This property restricts the tables reported to a subset of the available tables. For example, Tables=TableA,TableB,TableC. |
Views | Restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC. |
29.2.7. Miscellaneous
Property | Description |
BatchSize | The maximum size of each batch operation to submit. |
ConnectionLifeTime | The maximum lifetime of a connection in seconds. Once the time has elapsed, the connection object is disposed. |
ConnectOnOpen | This property species whether to connect to the Informix when the connection is opened. |
MaxRows | Limits the number of rows returned rows when no aggregation or group by is used in the query. This helps avoid performance issues at design time. |
Other | These hidden properties are used only in specific use cases. |
PoolIdleTimeout | The allowed idle time for a connection before it is closed. |
PoolMaxSize | The maximum connections in the pool. |
PoolMinSize | The minimum number of connections in the pool. |
PoolWaitTime | The max seconds to wait for an available connection. |
QueryPassthrough | This option passes the query to the Informix server as is. |
Readonly | You can use this property to enforce read-only access to Informix from the provider. |
RTK | The runtime key used for licensing. |
SessionVariables | A semicolon-separated list of SET ENVIRONMENT commands to set on the current connection. |
SwitchMode | This property allows you to specify a switching mode to select a server from AlternateServers as the active server. |
SwitchStrategy | This property allows you to specify a switching strategy to select a server from AlternateServers as the active server. |
Timeout | A timeout for connections in seconds. |
UseConnectionPooling | This property enables connection pooling. |
For more details, see https://cdn.cdata.com/help/JIG/jdbc/default.htm.