text: 
  ALTER TABLE egbpa_mstr_slotmapping ADD COLUMN slotApplicationType bigint;
  
        ALTER TABLE egbpa_mstr_slotmapping
  ADD CONSTRAINT fk_egbpa_mstr_slotmapping_applicationtype
     FOREIGN KEY (slotApplicationType)
     REFERENCES egbpa_mstr_applicationtype (id);
  
  ALTER TABLE egbpa_mstr_slotmapping ALTER COLUMN applicationtype DROP NOT NULL;
  
  
  ALTER TABLE egbpa_mstr_slotmapping drop column applicationtype;
  