update data in variable tables based on certain table.field selection criteria

Situation:

post code was set up wrong, i.e., post code 0801 is uploaded in system as 801. we need to update all exsiting records in all the tables with post code field and the value "801" to "0801".

To be achieved:

1. identify all tables that have extended data type " AddressZipCodeId".

2. update the recordes in these tables that have value "post code" = 801 to 0801

Is there anyway I can write a job to do this update?

Thanks,