CREATE TABLE "REGIONS" 
   (	"REGION_ID" NUMBER CONSTRAINT "REGION_ID_NN" NOT NULL ENABLE, 
	"REGION_NAME" VARCHAR2(25)
   ) ;
  CREATE UNIQUE INDEX "REG_ID_PK" ON "REGIONS" ("REGION_ID") 
  ;
ALTER TABLE "REGIONS" ADD CONSTRAINT "REG_ID_PK" PRIMARY KEY ("REGION_ID")
  USING INDEX "REG_ID_PK"  ENABLE;