ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  BASIC_ELIG NULL;

ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  BASIC_ELIG NOT NULL
  ENABLE VALIDATE;
ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  TIME_COHORT NULL;

ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  TIME_COHORT NOT NULL
  ENABLE VALIDATE;
ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  NLE_ES NULL;

ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  NLE_ES NOT NULL
  ENABLE VALIDATE;
ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  VCE NULL;

ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  VCE NOT NULL
  ENABLE VALIDATE;
ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  ENR_CRE_DTE NULL;

ALTER TABLE VETCHOICE.AGGREGATE_H MODIFY 
  ENR_CRE_DTE NOT NULL
  ENABLE VALIDATE;
