code: private void createConstraints() {
  		if (table.cardinality > 0) {
  			write("ALTER TABLE " + table.name + " ADD CONSTRAINT UC_" + table.name + " UNIQUE (" + this.table.columns.get(0).name);
  			for (int i = 1; i < this.table.cardinality; i++) {
  				write("," + this.table.columns.get(i).name);
  			}
  			writeLine(");");
  			writeLine("/");
  			skipLine();
  		}
  		
  		for (UniqueConstraint uniqueConstraint:table.uniqueConstraints) {
  			write("ALTER TABLE " + table.name + " ADD CONSTRAINT UC_" + uniqueConstraint.name + " UNIQUE (" + uniqueConstraint.columns.get(0).name);
  			for (int i = 1; i < uniqueConstraint.columns.size(); i++) {
  				write("," + uniqueConstraint.columns.get(i).name);
  			}
  			writeLine(");");
  			writeLine("/");
  			skipLine();
  		}
  		
  	}
docs: /*
  create constraints