In order to bypass this constraint issues, we need to skip the existing data from respective table’s i.e. WORKACTIONS and INTERESTRATES by taking backup and restore the data back to new created tables after successful SI Payments.jar import. We can achieve this in many ways.

you can try below steps might fix issue and completed Framework upgrade as one of the way.

1. Renamed the existing tables 'WORKACTIONS' and 'INTERESTRATES' into 'WORKACTIONS_ORG' , 'INTERESTRATES_ORG'.
2. Run the import wizard, choose the Manual options for schema changes and Download the SQL script.
3. Run the generated SQL scripts, which contains create table scripts for 'WORKACTIONS' and 'INTERESTRATES' tables, since these tables were renamed.
4. Merge the tables 'INTERESTRATES' , 'INTERESTRATES_ORG' using the following sql script.

MERGE INTO INTERESTRATES a USING ( 

    SELECT CURRENCY, ID, TYPE, FEEDDATE, INTERESTRATE FROM 

  INTERESTRATES_ORG) b 

ON (a.ID = b.ID) 

WHEN MATCHED THEN 

  UPDATE SET 

  a.CURRENCY = b.CURRENCY, 

  a.TYPE = b.TYPE, 

  a.INTERESTRATE = b.INTERESTRATE, 

  a.FEEDDATE = b.FEEDDATE 

  WHERE a.ID = null 

WHEN NOT MATCHED THEN 

  INSERT (a.CURRENCY, a.ID, a.TYPE, a.FEEDDATE, a.INTERESTRATE) 

  VALUES (b.CURRENCY, b.ID, b.TYPE, b.FEEDDATE, b.INTERESTRATE);

1. Drop the primary key constraint defined on recdate column in the 'WORKACTIONS' table.
2. Make the recdate column as NOT NULL.
3. Merge the tables 'WORKACTIONS' , 'WORKACTIONS_ORG' using the following sql script.

MERGE INTO WORKACTIONS a USING ( 

    SELECT ACTION, RECDATE, OPERATOR, RESPONSIBLEOPERATOR, CASEID, PXOBJCLASS, PZINSKEY, WORKACTIONDATE, PXINSNAME 

    FROM WORKACTIONS_ORG) b 

ON (a.RECDATE = b.RECDATE) 

WHEN MATCHED THEN 

    UPDATE SET 

        a.ACTION = b.ACTION, 

        a.OPERATOR = b.OPERATOR, 

        a.RESPONSIBLEOPERATOR = b.RESPONSIBLEOPERATOR, 

        a.CASEID = b.CASEID, 

        a.PXOBJCLASS = b.PXOBJCLASS, 

        a.PZINSKEY = b.PZINSKEY, 

        a.WORKACTIONDATE = b.WORKACTIONDATE, 

        a.PXINSNAME = b.PXINSNAME 

    WHERE a.RECDATE = null 

WHEN NOT MATCHED THEN 

    INSERT (a.RECDATE, a.ACTION, a.OPERATOR, a.RESPONSIBLEOPERATOR, a.CASEID, a.PXOBJCLASS, a.PZINSKEY, a.WORKACTIONDATE, a.PXINSNAME) 

    VALUES (b.RECDATE, b.ACTION, b.OPERATOR, b.RESPONSIBLEOPERATOR, b.CASEID, b.PXOBJCLASS, b.PZINSKEY, b.WORKACTIONDATE, b.PXINSNAME);

1. Run the import wizard, select the manual option for schema changes, and proceed further with the import.
2. Drop the renamed tables 'WORKACTIONS_ORG' , 'INTERESTRATES_ORG'.

Then the SIPayments.jar RAP import will be successful and SI upgrade will be completed.