Enterprise Access Products
Enterprise Access products (sometimes referred to as Gateways) are interfaces between Ingres applications and database management systems other than Ingres. The Enterprise Access products provide a variety of services, including:
• Translating between OpenSQL and host query interfaces, such as Rdb/VMS (for Alpha VMS), or DB2 UDB (for IBM DB2 Universal Database)
• Emulating SQL functions for non‑relational databases such as IMS and RMS
• Converting between OpenSQL data types and data types that are native to other host database management systems
• Translating host DBMS error messages to Ingres generic errors
Enterprise Access products are transparent, meaning that host databases are presented as if they are Ingres databases.