PLS-00103: Encountered the symbol "end-of-file" Sql Developer - database

Question

I want to execute following sql code.
--1
CREATE TABLE User_Type(
User_Type_ID Integer NOT NULL PRIMARY KEY,
User_Type_Name Char(20 ) NOT NULL
);
CREATE SEQUENCE User_Type_seq;
CREATE TRIGGER User_Type_ID_trg
BEFORE INSERT ON User_Type
FOR EACH ROW
BEGIN
SELECT User_Type_seq.NEXTVAL INTO :new.User_Type_ID
FROM DUAL;
END;
/
When I write it by hand to sql developer, it works. But I need a lot of block like this. So, I've edited those with notepad++ and copy/paste to sql developer again. This time; tables and sequences were created but it gives an error about trigger code (I've taken this routine with select from user_errors)
PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following: ERROR 103
;
Here is the full code which doesn't work. create table and sequences codes works, but the trigger code doesn't.
--1
CREATE TABLE User_Type(
User_Type_ID Integer NOT NULL PRIMARY KEY,
User_Type_Name Char(20 ) NOT NULL
);
CREATE SEQUENCE User_Type_seq;
CREATE TRIGGER User_Type_ID_trg
BEFORE INSERT ON User_Type
FOR EACH ROW
BEGIN
SELECT User_Type_seq.NEXTVAL INTO :new.User_Type_ID
FROM DUAL;
END;
/
--2
CREATE TABLE Users(
User_ID Integer NOT NULL PRIMARY KEY,
User_Password Char(8 ) NOT NULL,
User_Name Char(20 ) NOT NULL,
User_Type_ID Integer NOT NULL
);
CREATE SEQUENCE Users_seq;
CREATE TRIGGER User_ID_trg
BEFORE INSERT ON Users
FOR EACH ROW
BEGIN
SELECT Users_seq.NEXTVAL INTO :new.User_ID
FROM DUAL;
END;
/
--3
CREATE TABLE Admin(
Admin_ID Integer NOT NULL PRIMARY KEY,
E_mail Char(20 ) NOT NULL,
Phone_Number Char(20 ) NOT NULL,
User_ID Integer NOT NULL
);
CREATE SEQUENCE Admin_seq;
CREATE TRIGGER Admin_ID_trg
BEFORE INSERT ON Admin
FOR EACH ROW
BEGIN
SELECT Admin_seq.NEXTVAL INTO :new.Admin_ID
FROM DUAL;
END;
/
--4
CREATE TABLE City(
City_ID Integer NOT NULL PRIMARY KEY,
City_Name Char(20 ) NOT NULL
);
CREATE SEQUENCE City_seq;
CREATE TRIGGER City_ID_trg
BEFORE INSERT ON City
FOR EACH ROW
BEGIN
SELECT City_seq.NEXTVAL INTO :new.City_ID
FROM DUAL;
/
I've searched similar questions but no response to solve my problem.
Sorry for English, thank you...

Answer 1

You're just missing an END; in your final trigger:
CREATE TRIGGER City_ID_trg
BEFORE INSERT ON City
FOR EACH ROW
BEGIN
SELECT City_seq.NEXTVAL INTO :new.City_ID
FROM DUAL;
END;
/
Everything else is already created and compiled successfully.
Incidentally, from 11g you can assign a sequence directly in PL/SQL, withouth having to select from dual:
...
BEGIN
:new.City_ID := City_seq.NEXTVAL;
END;
/

Answer 2

It was solved. Unfortunately, a letter mistake I have not understood yet why, but:
it must be
create trigger
instead of
CREATE TRIGGER