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SQL>
SQL> create table emp
2 ( empno NUMBER(4) constraint E_PK primary key
3 , ename VARCHAR2(8)
4 , init VARCHAR2(5)
5 , job VARCHAR2(8)
6 , mgr NUMBER(4)
7 , bdate DATE
8 , sal NUMBER(6,2)
9 , comm NUMBER(6,2)
10 , deptno NUMBER(2) default 10
11 ) ;
Table created.
SQL> create synonym e for emp;
Synonym created.
SQL>
SQL> describe e
Name Null? Type
----------------------------------------- -------- ----------------------------
EMPNO NOT NULL NUMBER(4)
ENAME VARCHAR2(8)
INIT VARCHAR2(5)
JOB VARCHAR2(8)
MGR NUMBER(4)
BDATE DATE
SAL NUMBER(6,2)
COMM NUMBER(6,2)
DEPTNO NUMBER(2)
SQL>
SQL> select * from e;
no rows selected
SQL>
SQL> select * from cat;
TABLE_NAME TABLE_TYPE
--------------- -----------
MYSTATS TABLE
S SEQUENCE
WORKING_CUSTOME TABLE
RS
EMP_HQ VIEW
CUST_WITH_VARRA TABLE
Y_TEMP_TABLE
P1 TABLE
V VIEW
IT TABLE
TABLE_NAME TABLE_TYPE
--------------- -----------
CUST_NO_KEY_TAB TABLE
LE
AVG_SAL VIEW
DEMO TABLE
EMPDEPT_V VIEW
CUSTLOG TABLE
IX TABLE
EMP_DELTAS TABLE
PARMS TABLE
TABLE_NAME TABLE_TYPE
--------------- -----------
PASSWORD_AUDIT TABLE
WO_SEQ SEQUENCE
DEPT_SAL VIEW
DEPT$AUDIT TABLE
ALL_ORACLE_ERRO VIEW
RS
INVENTORY_TBL TABLE
INVENTORY_VIE VIEW
TMP TABLE
SEQ SEQUENCE
TABLE_NAME TABLE_TYPE
--------------- -----------
FRIENDIDSEQ SEQUENCE
TOP_EMP VIEW
EMP_BONUS VIEW
SHARED VIEW
SYSTEM_STATS TABLE
EMP TABLE
EMPLOYEETEMPTAB TABLE
LE
TEMP_TABLE TABLE
TABLE_NAME TABLE_TYPE
--------------- -----------
PHONE_LIST VIEW
EMPTEMPTABLE TABLE
P TABLE
WORKING_EMPLOYE TABLE
ES
E SYNONYM
WORKING_EMPS TABLE
MYTABLE1 TABLE
40 rows selected.
SQL>
SQL> select synonym_name, table_owner, table_name
2 from user_synonyms;
SYNONYM_NAME TABLE_OWNER TABLE_NAME
------------------------------ ------------------------------ ---------------
E JAVA2S EMP
SQL>
SQL> drop synonym e;
Synonym dropped.
SQL>
SQL> drop table emp;
Table dropped.
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