1.
Error: ORA-01789: query block has incorrect number of …
stackoverflow.com/questions/13559955/error-ora-01789-query-block-has-incorrect-number-of-result-columns
2.
Oracle / PLSQL: ORA-01789 Error Message – TechOnTheNet
www.techonthenet.com/oracle/errors/ora01789.php
3.
ORA-01789: query block has incorrect number of result columns
dba.stackexchange.com/questions/275272/ora-01789-query-block-has-incorrect-number-of-result-columns
4.
“ORA-01789 query block has incorrect number of result …
knowledge.informatica.com/s/article/11006
5.
ORA – 01789 query block has incorrect number of result …
www.toolbox.com/tech/data-management/question/ora-01789-query-block-has-incorrect-number-of-result-columns-022005/
6.
ORA-01789: query block has incorrect number of result …
community.bmc.com/s/question/0D53n00007aDlsoCAC/ora01789-query-block-has-incorrect-number-of-result-columns-on-creating-network-device
7.
CMDB sync fails with ERROR (552): The SQL database …
community.bmc.com/s/article/CMDB-sync-fails-with-ERROR-552-The-SQL-database-operation-failed-ORA-01789-query-block-has-incorrect-number-of-result-columns
8.
ORA-01789:query block has incorrect number of result …
blog.csdn.net/magi1201/article/details/50676672
9.
query block has incorrect number of result columns …
community.oracle.com/tech/developers/discussion/2177356/query-block-has-incorrect-number-of-result-columns
10.
ORA-01789: query block has incorrect number of result columns
cmsdk.com/java/ora01789-query-block-has-incorrect-number-of-result-columns.html
11.
ORA-01789: query block has incorrect number of result columns
issues.redhat.com/browse/TEIID-2967
Conclusion
Guide above should be useful for Ora 01789 Query Block Has Incorrect Number Of Result Columns.