数据泵外部表（带并行度）
导出：create table ext2
organization external
( type oracle_datapump
default directory dir1
location ( DIR1:'ext2a.dmp', DIR2:'ext2b.dmp'))
parallel 2
as
select e.employee_id, e.last_name, e.salary, d.department_name
from employees e full outer join departments d
on (e.department_id = d.department_id) ;导入：
$ strings ext2a.dmp
"HR"."U"
x86_64/Linux 2.4.xx
AL32UTF8
12.01.00.02.00
001:001:000001:000001
i<?xml version="1.0"?>
<ROWSET>
<ROW>
<STRMTABLE_T>
<VERS_MAJOR>1</VERS_MAJOR>
<VERS_MINOR>0 </VERS_MINOR>
<VERS_DPAPI>3</VERS_DPAPI>
<ENDIANNESS>0</ENDIANNESS>
<CHARSET>AL32UTF8</CHARSET>
<NCHARSET>AL16UTF16</NCHARSET>
<DBTIMEZONE>+00:00</DBTIMEZONE>
<OWNER_NAME>HR</OWNER_NAME>
<NAME>EXT2</NAME>
<COL_LIST>
<COL_LIST_ITEM>
<COL_NUM>1</COL_NUM>
<NAME>EMPLOYEE_ID</NAME>
<TYPE_NUM>2</TYPE_NUM>
<LENGTH>22</LENGTH>
<PRECISION_NUM>6</PRECISION_NUM>
<SCALE>0</SCALE>
<CHARSETID>0</CHARSETID>
<CHARSETFORM>0</CHARSETFORM>
<CHARLENGTH>0</CHARLENGTH>
</COL_LIST_ITEM>
<COL_LIST_ITEM>
<COL_NUM>2</COL_NUM>
<NAME>LAST_NAME</NAME>
<TYPE_NUM>1</TYPE_NUM>
<LENGTH>25</LENGTH>
<PRECISION_NUM>0</PRECISION_NUM>
<SCALE>0</SCALE>
<CHARSETID>873</CHARSETID>
<CHARSETFORM>1</CHARSETFORM>
<CHARLENGTH>25</CHARLENGTH>
</COL_LIST_ITEM>
<COL_LIST_ITEM>
<COL_NUM>3</COL_NUM>
<NAME>SALARY</NAME>
<TYPE_NUM>2</TYPE_NUM>
<LENGTH>22</LENGTH>
<PRECISION_NUM>8</PRECISION_NUM>
<SCALE>2</SCALE>
<CHARSETID>0</CHARSETID>
<CHARSETFORM>0</CHARSETFORM>
<CHARLENGTH>0</CHARLENGTH>
</COL_LIST_ITEM>
<COL_LIST_ITEM>
<COL_NUM>4</COL_NUM>
<NAME>DEPARTMENT_NAME</NAME>
<TYPE_NUM>1</TYPE_NUM>
<LENGTH>30</LENGTH>
<PRECISION_NUM>0</PRECISION_NUM>
<SCALE>0</SCALE>
<CHARSETID>873</CHARSETID>
<CHARSETFORM>1</CHARSETFORM>
<CHARLENGTH>30</CHARLENGTH>
</COL_LIST_ITEM>
</COL_LIST>
</STRMTABLE_T>
</ROW>
</ROWSET>
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Pataballa
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Shareholder Services<
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Contracting
$
orcl2:
create table ext3(EMPLOYEE_ID number(22,6),
LAST_NAMEvarchar2(25) ,
SALARY number(22,8) ,
DEPARTMENT_NAMEvarchar2(30)
)
organization external
( type oracle_datapump
default directory dir1
location ( DIR1:'ext2a.dmp', DIR2:'ext2b.dmp'))
parallel 2;
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