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Configuring the adapter consists of specifying connection and authentication information for each of the connections you want to establish.
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In order to connect to an Informix database server, the adapter requires connection and authentication information. You supply this information using the SET CONNECTION_ATTRIBUTES command. You can:
You can declare connections to more than one Informix database server by including multiple SET CONNECTION_ATTRIBUTES commands. The actual connection to Informix Server takes place when the first query that references the connection is issued. If you issue multiple SET CONNECTION_ATTRIBUTES commands:
You can configure the adapter from either the Web Console or the Data Management Console.
or
From the Data Management Console, expand the Adapters folder.
The Adapters folder opens.
The Add Adapter to Configuration pane opens.
The Informix adapter is under the SQL group folder.
The following list describes the connection attributes for which you can supply values. To complete the attribute declaration, click the Configure button.
Logical name used to identify this particular set of connection attributes. The default is CON01.
Informix server name, as defined by the dbservername field in the sqlhosts file.
There are three methods by which a user can be authenticated when connecting to a database server:
Name by which the user is known to Informix.
Password associated with the user name.
Informix database name. For:
Select a profile from the drop-down menu to indicate the level of profile in which to store the CONNECTION_ATTRIBUTES command. The global profile, edasprof.prf, is the default.
If you wish to create a new profile, either a user profile (user.prf) or a group profile if available on your platform (using the appropriate naming convention), choose New Profile from the drop-down menu and enter a name in the Profile Name field (the extension is added automatically).
Store the connection attributes in the server profile (edasprof).
Explicit authentication. The user ID and password are explicitly specified for each connection and passed to Informix, at connection time, for authentication.
ENGINE SQLINF SET CONNECTION_ATTRIBUTES [connection] [datasource]/userid,password ;dbname
Password passthru authentication. The user ID and password are explicitly specified for each connection and passed to Informix, at connection time, for authentication.
ENGINE SQLINF SET CONNECTION_ATTRIBUTES [connection] [datasource]/;dbname
Trusted authentication. The adapter connects to Informix as a Windows login using the credentials of the Windows user impersonated by the server data access agent.
ENGINE SQLINF SET CONNECTION_ATTRIBUTES [connection] [datasource]/,;dbname
where:
Indicates the adapter. You can omit this value if you previously issued the SET SQLENGINE command.
Is a logical name (or a data source name) used to identify this particular set of attributes.
If you plan to have only one connection to Informix, this parameter is optional. If not specified, the local database server serves as the default connection.
Is the name of the database server as defined by the dbservername field in the sqlhosts file.
If datasource is not specified, the Informix default server (value of the INFORMIXSERVER environment variable) is used. You can also specify the default server with two consecutive single quotation marks.
Is the primary authorization ID by which you are known to Informix.
Is the password associated with the primary authorization ID.
Also referred to as schema, is the name of the Informix database used for this connection. For:
The following SET CONNECTION_ATTRIBUTES command allows the application to access the Informix database mydir1/mydir2/sampdb on the Informix database server named SAMPSERVER with an explicit user ID (MYUSER) and password (PASS). To ensure security, specify connection attributes from the Web Console, which encrypts the password before adding it to the server profile.
ENGINE SQLINF SET CONNECTION_ATTRIBUTES SAMPSERVER/MYUSER,PASS; 'mydir1/mydir2/sampdb'
ENGINE SQLINF SET CONNECTION_ATTRIBUTES SAMPSERVER/MYUSER,PASS; SAMPDB
The following SET CONNECTION_ATTRIBUTES command connects to the Informix database server named SAMPLESERVER using Password Passthru authentication:
ENGINE SQLINF SET CONNECTION_ATTRIBUTES SAMPSERVER/; 'mydir1/mydir2/sampdb'
ENGINE SQLINF SET CONNECTION_ATTRIBUTES SAMPSERVER/; SAMPDB
The following SET CONNECTION_ATTRIBUTES command connects to a local Informix database server using operating system authentication:
ENGINE SQLINF SET CONNECTION_ATTRIBUTES /,;'mydir1/mydir2/sampdb'
ENGINE SQLINF SET CONNECTION_ATTRIBUTES /,; SAMPDB
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Once connections have been defined, the connection named in the first SET CONNECTION_ATTRIBUTES command serves as the default connection. You can override this default using the SET DEFAULT_CONNECTION command.
ENGINE SQLINF SET DEFAULT_CONNECTION connection
where:
Indicates the adapter. You can omit this value if you previously issued the SET SQLENGINE command.
Is the connection defined in a previously issued SET CONNECTION_ATTRIBUTES command. If this name was not previously declared, the following message is issued:
FOC1671, Command out of sequence
Note:
FOC1671, Command out of sequence.
The following SET DEFAULT_CONNECTION command selects the database server named SAMPLENAME as the default database server:
ENGINE SQLINF SET DEFAULT_CONNECTION SAMPLENAME
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The SET AUTODISCONNECT command controls the persistence of connections when using the adapter for each of the connections you want to establish.
ENGINE SQLINF SET AUTODISCONNECT ON {FIN|COMMIT}
where:
Indicates the adapter. You can omit this value if you previously issued the SET SQLENGINE command.
Disconnects automatically only after the session has been terminated. FIN is the default value.
Disconnects automatically only after COMMIT or ROLLBACK is issued as a native SQL command.
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