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12c upgrade fails with error ORA-01422: exact fetch returns more than requested number of rows (Doc ID 2095245.1)

Last updated on AUGUST 04, 2018

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

Database upgrade to 12.1.0.2 fails with below error

 9 select obj# into obj_id from obj$ where owner#=0 and name='OBJ$';
10 select count(*) into column_exists from col$
11 where obj# = obj_id and name='SIGNATURE';
94 null;
95 else
96 raise;
97 end if;
98 end;
99 /
declare
*
ERROR at line 1:
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at line 9

Cause

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In this Document
Symptoms
Cause
Solution

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