Connections to NOMOUNT/MOUNTED or RESTRICTED Databases Fail
(Doc ID 362656.1)
Last updated on AUGUST 31, 2023
Applies to:
Oracle Net Services - Version 11.1.0.6 to 12.2.0.1 [Release 11.1 to 12.2]Oracle Database - Enterprise Edition - Version 12.2.0.1 to 12.2.0.1 [Release 12.2]
Information in this document applies to any platform.
Symptoms
Connecting to the database via the TNS Listener fails with ORA-1033 or ORA-12528 or ORA-12526 or ORA-12527.
Following are two examples:
Changes
The database was started using the nomount, mount but restricted mode.
In other words, the DB admin executed "STARTUP NOMOUNT" or "STARTUP MOUNT" with "STARTUP RESTRICT" to an idle instance.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |