Informix Error -9474: Could not connect to database (%s).

Reasons / Common Causes

-9474 fires when the server can't connect to the named database — per the official guidance, which describes this as an internal error.

1. An internal database-connection failure, per the official guidance — no further named cause beyond the named database.

Solutions / Resolution

1. Contact IBM Informix Technical Support, per the official guidance.

Examples

N/A

No specific triggering statement is documented; the named database varies.

Diagnostic Checks

1. Check online.log for accompanying detail, and rule out the database-existence/ permissions cause described under -9473, before escalating.

Related Errors / Related Topics

• -9470 — "Cannot establish JDBC connection for embedding application." A related internal connection error, specific to an embedding application.
• -9471 — "Database server connection failed." A related internal connection error, general rather than naming a specific database.
• -9473 — "Connection to database failed." A related connection error, with a documented named cause (database existence/permissions).

The server couldn't connect to the named database — check online.log, rule out existence/ permissions, and escalate if needed.