how tofind out which tables contain a certain SETID value.

This post is to share another alternative on how to find out which tables contain a certain SETID value.
Navigate to PeopleTools > Archive Data > Find Data
On the "Field Name" field enter "SETID", on the "Value to Match" field enter the value you are looking for.
The system will give a list of each and every table that has the requested value on the requested field.
this can be used for any other table/value, not only SETID.

Another way to find in Oracle database is to run the below 2 SQL statements

SELECT TABLE_NAME
FROM DBA_TAB_COLUMNS
WHERE COLUMN_NAME='SETID'

SELECT TABLE_NAME
FROM DBA_TAB_COLUMNS
WHERE COLUMN_NAME='BUSINESS_UNIT'