IBM Informix
IBM Informix is an enterprise class Object Relational Database Management System (ORDBMS). It is extensible and provides extreme transaction performance and features to support both OLTP and Data Warehouse database services.
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watsonx.data Developer edition
IBM Informix
Configure the following details for IBM Informix:
| Field | Description |
|---|---|
| Display name | Enter the database name to be displayed on the screen. |
| Database name | Enter the name of your database. |
| Hostname | Enter the Hostname. |
| Port | Enter the Port number. |
| Username | Enter the Username. |
| Password | Enter the Password. |
| Informix server | Enter the Informix server name. |
| Port is SSL enabled |
Use the toggle switch to enable or disable SSL connection. If enabled, i. The Upload SSL certificate (.pem, .crt, .cert or .cer) link is enabled. ii. Click the Upload SSL certificate (.pem, .crt, .cert or .cer) link. iii. Browse the SSL certificate and upload. |
| Test connection | Click the Test connection link to test the database connection. If the database connection is successful, a success message appears. |
| Catalog name | Enter the name of the catalog. This catalog is automatically associated with your database. |
| Create | Click Create to create the database. |
Limitations for SQL statements
- For the database-based catalogs,
CREATE SCHEMA,CREATE TABLE,DROP SCHEMA,DROP TABLE,DELETE,DROP VIEW,ALTER TABLE, andALTER SCHEMAstatements are not available in the Data manager UI.
Limitations for data types
- When the fields of data type
REALhave 6 digits or more in the decimal part with the digits being predominately zero, the values when queried are rounded off. It is observed that the rounding off occurs differently based on the precision of the values. For example, a decimal number 1.654 when rounded to 3-digits after the decimal point are the same. Another example is 10.890009 and 10.89000. It is noticed that 10.89000 is rounded to 10.89, whereas 10.89009 is not rounded off. This is an inherent issue because of the representational limitations of binary floating point formats. This might have a significant impact when querying involves sorting.