IBM Informix Reader Parameters

This is the ODBC data source name. When you enter the Database in the Input Dataset field, the Database field will be automatically populated in the Parameters dialog.

Enter the username and password to access the database, user account, or wherever authentication is required.

The time (seconds) after which to terminate a query to the database if it has not yet returned a connection/result.

If it is set to 0, there is no timeout. The default is 30.

After you have completely specified the database connection, click the Browse button to select tables to import. A connection window appears while the system reads a table from the database.

Once the table list appears, you can select one or more tables, and then click OK to dismiss the window. The table name(s) will appear in the table list field in the Reader Parameters box.

An SQL WHERE clause can be applied to each table’s columns, to constrain the attributes of the layers selected in the layer list (for example, NUMLANES=2).

Use this parameter to expose Format Attributes in Workbench when you create a workspace:

• In a dynamic scenario, it means these attributes can be passed to the output dataset at runtime.
• In a non-dynamic scenario where you have multiple feature types, it is convenient to expose additional attributes using this one parameter. For example, if you have ten feature types and want to expose the same attribute in each one, it is easier to define it once than it is to set each feature type individually in the workspace.

You may want to execute some ad-hoc SQL prior to reading or writing a table. For example, it may be necessary to ensure that a view exists prior to attempting to read from it.

Multiple SQL commands can be delimited by a character specified using the FME_SQL_DELIMITER keyword, embedded at the beginning of the SQL block. The single character following this keyword will be used to split the SQL, which will then be sent to the database for execution.

Note: Include a space before the character.

For example:

FME_SQL_DELIMITER ;

DELETE FROM instructors;

DELETE FROM people WHERE LastName='Doe' AND FirstName='John'

Multiple delimiters are not allowed and the delimiter character will be stripped before being sent to the database.

Any errors occurring during the execution of these SQL statements will normally terminate the reader with an error. If the specified statement is preceded by a hyphen (“-”), such errors are ignored.

You may want to execute some ad-hoc SQL after reading or writing a set of tables. For example, it may be necessary to clean up a temporary view after writing to the database.

Multiple SQL commands can be delimited by a character specified using the FME_SQL_DELIMITER directive, embedded at the beginning of the SQL block. The single character following this directive will be used to split the SQL, which will then be sent to the database for execution.

Note: Include a space before the character.

For example:

FME_SQL_DELIMITER ; DELETE FROM instructors; DELETE FROM people WHERE LastName='Doe' AND FirstName='John'

Multiple delimiters are not allowed and the delimiter character will be stripped before being sent to the database.

Any errors occurring during the execution of these SQL statements will normally terminate the reader with an error. If the specified statement is preceded by a hyphen (“-”), such errors are ignored.