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> insert into emp(emp_id,lastname,firstname,midinit,street,city,state,zip,shortZipCode,area_code,phone,company_name)values
2 (1,'Jones','Joe','J','1 Ave','New York','NY','11202','1111','212', '221-4333','Big Company');
1 row created.
SQL> insert into emp(emp_id,lastname,firstname,midinit,street,city,state,zip,shortZipCode,area_code,phone,company_name)values
2 (2,'Smith','Sue','J','1 Street','New York','NY','11444','1111','212', '436-6773','Little Company');
1 row created.
SQL> insert into emp(emp_id,lastname,firstname,midinit,street,city,state,zip,shortZipCode,area_code,phone,company_name)values
2 (3,'X','Peggy','J','1 Drive','New York','NY','45502','2222','212', '234-4444','Medium Company');
1 row created.
SQL>
SQL> create or replace view phone_list as
2 select emp_id, firstname || ' ' || midinit || '. ' || lastname as name,'(' || area_code || ')' || phone as telephone#
3 from emp;
View created.
SQL>
SQL>
SQL>
SQL> desc phone_list
Name Null? Type
----------------------------------------------------------------------------------------------------- -------- --------------------------------------------------------------------
EMP_ID NOT NULL NUMBER(38)
NAME VARCHAR2(39)
TELEPHONE# VARCHAR2(13)
SQL> select * from phone_list;
EMP_ID NAME TELEPHONE#
---------- --------------------------------------- -------------
1 Joe J. Jones (212)221-4333
2 Sue J. Smith (212)436-6773
3 Peggy J. X (212)234-4444
3 rows selected.
SQL> create synonym phones for phone_list;
Synonym created.
SQL> desc phones
Name Null? Type
----------------------------------------------------------------------------------------------------- -------- --------------------------------------------------------------------
EMP_ID NOT NULL NUMBER(38)
NAME VARCHAR2(39)
TELEPHONE# VARCHAR2(13)
SQL> select * from phones;
EMP_ID NAME TELEPHONE#
---------- --------------------------------------- -------------
1 Joe J. Jones (212)221-4333
2 Sue J. Smith (212)436-6773
3 Peggy J. X (212)234-4444
3 rows selected.
SQL>
SQL> select view_name from user_views;
VIEW_NAME
------------------------------
EMP_HQ
V
AVG_SAL
EMPDEPT_V
DEPT_SAL
ALL_ORACLE_ERRORS
INVENTORY_VIE
TOP_EMP
EMP_BONUS
SHARED
PHONE_LIST
11 rows selected.
SQL>
SQL> select synonym_name, table_name from user_synonyms;
SYNONYM_NAME TABLE_NAME
------------------------------ ------------------------------
PHONES PHONE_LIST
1 row selected.
SQL>
SQL>
SQL> drop synonym phones ;
Synonym dropped.
SQL>
SQL>
SQL>
SQL> drop table emp;
Table dropped.