Time for action – searching for and fixing any table row uniqueness problem
- In order to check for any table row uniqueness, we can run the following query on the primary database:
SQL> SELECT * FROM DBA_LOGSTDBY_NOT_UNIQUE; OWNER TABLE_NAME B ------------------------------ ------------------------------ - SCOTT BONUS N SCOTT SALGRADE N SH SALES N SH COSTS N SH SUPPLEMENTARY_DEMOGRAPHICS N
This query was run on a newly created 11g release 2 database, which only includes built-in example schemas. The output shows that several tables from
SCOTT
andSH
schemas have row uniqueness problem.The
BAD_COLUMN
column has two values, which areY
andN
. If you see the rows withBAD_COLUMN=Y
, it means that the table column is defined using an unbounded data type, ...
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