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Query with multiple dblinks in ADG / read-only database fails with ORA-16000 (Doc ID 2462936.1)

Last updated on FEBRUARY 27, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 to 12.1.0.2 [Release 11.2 to 12.1]
Information in this document applies to any platform.

Symptoms

In an active Data Guard (ADG) database, execution of a select statement using multiple database links, for example:

select * from table@dblink1
union
select * from table@dblink2
union
select * from table@dblink3;

 

fails with the following error:

ORA-16000: database or pluggable database open for read-only access
*Cause: The database or pluggable database was opened for read-only access.
  Attempts to modify the database using DML or DDL statements generate this error.
*Action: In order to modify the database or pluggable database, it must first be shut down and reopened for read/write access.

Cause

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In this Document
Symptoms
Cause
Solution
References


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