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分享SQL> show user;
USER is "DSGDATA"
SQL> select * from dept@test_link;
DEPTNO DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTONSQL> show user;
USER is "DSGDATA"
SQL> select * from student;
SNO SNAME SSEX SAGE SDEPT
--------- -------------------- ---- ---------- --------------------
200215121 liyong boy 20 CS
200215122 liuchen girl 19 CS
200215123 wangmin girl 18 MA
200215124 zhangli boy 19 IS$ expdp scott/tiger@test_link directory=expdp_dir@test_link
dumpfile=scott_dblink.dmp@test_link nologfile=y tables=Student