DataPump Import Reports ORA-01427 single-row subquery returns more than one row
Last updated on NOVEMBER 28, 2016
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Information in this document applies to any platform.
When attempting to perform a DataPump Import (version 11.2), the following errors are reported.
SELECT NVL((SELECT 1 FROM SYS.KU$_TABLE_EXISTS_VIEW WHERE object_schema=:1 AND object_long_name = :2), 0) FROM SYS.DUAL
ORA-01427: single-row subquery returns more than one row
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