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SQL>
SQL> create table emp(
2 emp_id integer primary key
3 ,lastname varchar2(20) not null
4 ,firstname varchar2(15) not null
5 ,midinit varchar2(1)
6 ,street varchar2(30)
7 ,city varchar2(20)
8 ,state varchar2(2)
9 ,zip varchar2(5)
10 ,shortZipCode varchar2(4)
11 ,area_code varchar2(3)
12 ,phone varchar2(8)
13 ,company_name varchar2(50));
Table created.
SQL>
SQL>
SQL> create index emp_2_idx_phone on emp (phone);
Index created.
SQL>
SQL> select index_name, table_name, uniqueness
2 from user_indexes
3 where index_name = 'EMP_2_IDX_PHONE';
SQL>
SQL> drop table emp;
Table dropped.
SQL>
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