How to fix the Oracle error ORA-26921: Cannot alter the start SCN or time of string Capture “string”.?

In this post, you’ll learn more about the Oracle ErrorORA-26921: Cannot alter the start SCN or time of string Capture “string”. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-26921: Cannot alter the start SCN or time of string Capture “string”.

Reason for the Error ORA-26921: Cannot alter the start SCN or time of string Capture “string”.

An attempt was made to alter the start SCN or time for a capture while other outbound servers were still attached to it.

How to fix the Error ORA-26921: Cannot alter the start SCN or time of string Capture “string”. ?

You can fix this error in Oracle by following the below steps

Execute the following: 1) Get the names of other outbound servers currently attached to the specified Capture using the query: SELECT server_name FROM dba_xstream_outbound WHERE (status = ‘ATTACHED’) AND (server_name <> ‘‘) AND (capture_name = ‘‘); 2) Detach the client application from each server_name returned. 3) Retry the operation.