text: alter table ACT_HI_COMMENT 
  add TYPE_ nvarchar(255);
  
  alter table ACT_HI_COMMENT 
  add ACTION_ nvarchar(255);
  
  alter table ACT_HI_COMMENT 
  add FULL_MSG_ image;
  
  alter table ACT_HI_TASKINST 
  add OWNER_ nvarchar(64);
  
  alter table ACT_HI_TASKINST 
  add PARENT_TASK_ID_ nvarchar(64);
  