ORA-01722: Invalid Number When Executing a SQL Join After Database Upgraded To From

(Doc ID 2196128.1)

Last updated on OCTOBER 25, 2016

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


SQL> select * from T1 a, T1 b where a.col1=b.col2;
ORA-01722: invalid number



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