How to create and load oracle tables from Excel sheet?

Question

I have an excel sheet to be upload on oracle and so that data can be access with SQL commands.
Please suggest some opinions...

Answer 1

create table emp_ext (
EMPNO NUMBER(4),
ENAME VARCHAR2(10),
JOB VARCHAR2(9),
MGR NUMBER(4),
HIREDATE DATE,
SAL NUMBER(7,2),
COMM NUMBER(7,2),
DEPTNO NUMBER(2))
Organization external
(type oracle_loader
default directory testdir
access parameters (records delimited by newline
fields terminated by ?,?)
location (?emp_ext.csv?))
reject limit 1000;