Get Meta Data of Table

SQL> grant connect,resource to dungnc identified by oracle123;
Grant succeeded.

SQL> conn dungnc/oracle123;
Connected.

SQL> create table test (id number);
Table created.

SQL> conn / as sysdba
Connected.

SQL> select dbms_metadata.get_ddl('TABLE','TEST','DUNGNC') from dual;

DBMS_METADATA.GET_DDL('TABLE','TEST','DUNGNC')
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  CREATE TABLE "DUNGNC"."TEST"
   (    "ID" NUMBER
   ) SEGMENT CREATION DEFERRED