text: truncate table tempSimple;
  
  truncate table tempDescription;
  
  truncate table tempConcept;
  
  truncate table tempRelationship;
  
  COPY tempConcept FROM '/mysql_exp/DMD/tempConcept.txt';
  
  COPY tempDescription FROM '/mysql_exp/DMD/tempDescription.txt';
  
  COPY tempSimple FROM '/mysql_exp/DMD/tempSimple.txt';
  
  COPY tempRelationship FROM '/mysql_exp/DMD/tempRelationship.txt';