Create Table

/* Tables */

CREATE TABLE "POKEMON" (
    "ID_POKEMON" NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 20 NOORDER  NOCYCLE  NOKEEP  NOSCALE  NOT NULL ENABLE, 
    "NAME_POKEMON" VARCHAR2(50 CHAR), 
    "URL_POKEMON" VARCHAR2(50 CHAR), 
	"POKEMON_TYPE" NUMBER, 
    CONSTRAINT "POKEMON_PK" PRIMARY KEY ("ID_POKEMON") USING INDEX  ENABLE
);

CREATE TABLE "POKEMON_IMAGES" (
    "ID_POKEMON_IMAGES" NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 20 NOORDER  NOCYCLE  NOKEEP  NOSCALE  NOT NULL ENABLE, 
    "ID_POKEMON" NUMBER, 
    "POKEMON_NORMAL_URL" VARCHAR2(150 CHAR), 
    "POKEMON_SHINY_URL" VARCHAR2(150 CHAR), 
    CONSTRAINT "POKEMON_IMAGES_PK" PRIMARY KEY ("ID_POKEMON_IMAGES") USING INDEX  ENABLE
);

CREATE TABLE "POKEMON_TYPES" (
    ID_POKEMON_TYPE" NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 20 NOORDER  NOCYCLE  NOKEEP  NOSCALE  NOT NULL ENABLE, 
    "NAME_POKEMON_TYPES" VARCHAR2(50 CHAR), 
    "URL_POKEMON_TYPES" VARCHAR2(100 CHAR), 
    CONSTRAINT "POKEMON_TYPES_PK" PRIMARY KEY ("ID_POKEMON_TYPE") USING INDEX  ENABLE
);

/* FK */

ALTER TABLE "POKEMON_IMAGES" ADD CONSTRAINT "POKEMON_IMAGES_FK" FOREIGN KEY ("ID_POKEMON") REFERENCES "POKEMON" ("ID_POKEMON") ENABLE;

ALTER TABLE "POKEMON" ADD CONSTRAINT "POKEMON_TYPE_FK" FOREIGN KEY ("POKEMON_TYPE") REFERENCES "POKEMON_TYPES" ("ID_POKEMON_TYPE") ENABLE;