Oracle导dmp出现文件ORA-12154:TNS:无法解析指定的连接标识符问题的解决方案

# tnsnames.ora Network Configuration File: d:\Oracle\product\10.2.0\client_1\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
 (DESCRIPTION =
 (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
 )
 (CONNECT_DATA =
  (SERVICE_NAME = ORCL)
 )
 )

create user testdb65 identified by “testdb65” default tablespace users temporary 
tablespace temp;

grant connect,dba to testdb65;

CREATE TABLESPACE NNC_DATA01 DATAFILE ‘D:\tablespace\nnc_data01.dbf' SIZE 500M 
AUTOEXTEND ON NEXT 50M EXTENT MANAGEMENT LOCAL UNIFORM SIZE 256K ; 
CREATE TABLESPACE NNC_INDEX01 DATAFILE ‘D:\tablespace\nnc_index01.dbf' SIZE 100M 
AUTOEXTEND ON 
NEXT 50M EXTENT MANAGEMENT LOCAL UNIFORM SIZE 256K ;

impdp testdb65/testdb65@orcl schemas=testdb65 dumpfile=TESTDB65.dmp 
impdp ncjob65/ncjob65@orcl schemas=testdb65 dumpfile=TESTDB65.dmp

expdp lfwtrain/a@orcl schemas=当前用户 dumpfile=expdptest.dmp