Executing SQL Scripts in new database

I copied the generated an sql script from another db and want to use it to create tables in another one using PL/SQL Developer, how do i go about, making sure the tables are created in a specific index tablespace.

Potion of code:

DROP TABLE ALLOCATIONS CASCADE CONSTRAINTS ;

CREATE TABLE ALLOCATIONS (
JUNIOR_CENTRE_NO VARCHAR2 (15) NOT NULL,
SELECTION_YEAR NUMBER (4) NOT NULL,
CANDIDATE_ID VARCHAR2 (5) NOT NULL,
ALLOCATED_SCHOOL VARCHAR2 (15) NOT NULL,
ALLOCATION_TYPE CHAR (2) NOT NULL,
PLACE_TAKENUP_YN CHAR (1) NOT NULL,
TRANSFERED_YN CHAR (1),
CONSTRAINT ALLOC_PK
PRIMARY KEY ( JUNIOR_CENTRE_NO, SELECTION_YEAR, CANDIDATE_ID ) ) ;

ALTER TABLE ALLOCATIONS ADD CONSTRAINT
ALLO_ALLOCATION_CK CHECK (Allocation_Type IN ('CC','CH','CA', 'RA', 'RE', 'TR') ) ;

ALTER TABLE ALLOCATIONS ADD CONSTRAINT
ALLO_PLACE_TAKENUP_YN_CK CHECK ( Place_TakenUp_YN IN ('Y', 'N') ) ;

ALTER TABLE ALLOCATIONS ADD CONSTRAINT
ALLO_TRANSFERED_YN_CK CHECK (Transfered_YN IN ('Y', 'N') ) ;




CREATE INDEX EISD.ALLOC_ALLOCATED_SCHOOL_I ON
"EISD".ALLOCATIONS(ALLOCATED_SCHOOL)
TABLESPACE EIS_INDEX
;

If you need to create this table in a specific tablespace you need to specify the tablespace with the create table clause (I don't know how to change it onces its been created).

Craete table test (col_1 varchar2(1) tablespace my_tbsp;

try that as an example.