The document describes an unconventional approach used to separate data from one company into two new companies during a split. Key steps included backing up selective tables based on separation criteria, deleting records using SQL statements or a component interface based on whether a full or partial deletion was needed, and then restoring the backed up data into the new company structures. The separation criteria differed for employee versus non-employee data and was based on separation dates.

1. How to handle a data separation
My Company X was splitting into 2 companies; Company X1 & Company X2. I was assigned the task of
migration of records from the original company into the newly established companies. Since the ERP
involved was PeopleSoft, data had to split in to two companies. I would like to share the unconventional
approach used in the data separation. The process is split to three parts
a) Back up
b) Delete and
C) Restore.
The separation of JOB DATA is based on the separation date where as non JOB DATA components are
based on another set of separation date. Since a full database backup will not serve the purpose of
restoring the selected employees at a later point of time in the case of an accidental deletion. I was forced
to create tables at run time and back up the tables selectively based on the criteria. The restoration logic
was based on the insert into statements. The entire process is divided to four different categories such as
a) Employee Full Deletion
b) Record Full Deletion
c) Employee Partial Deletion and
d) Record Partial deletion.
The Employee Full Deletion is based on the PeopleSoft delivered Employee deletion process where a sql
is used to identify the list of records having EMPLID as key. Record Full Deletion is based on the criteria
where EMPLID and EMPL_RCD are key. Employee Partial Deletion is based on components where
EMPLID and EFFDT are present where as Record Partial Deletion is based on components where
EMPLID, EMPL_RCD and EFFDT are present. The Employee Full Deletion and Record Full Deletion are
based on Delete statements where as all the partial deletions relied on Component Interface.