#10g
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options

SQL> desc sys.exu9tbs
名称                                      是否为空? 类型
----------------------------------------- -------- ----------------------------
ID                                        NOT NULL NUMBER
OWNER                                              CHAR(6)
NAME                                      NOT NULL VARCHAR2(30)
ISONLINE                                           VARCHAR2(7)
CONTENT                                            VARCHAR2(9)
INIEXT                                    NOT NULL NUMBER
SEXT                                      NOT NULL NUMBER
PCTINC                                    NOT NULL NUMBER
MINEXT                                    NOT NULL NUMBER
MAXEXT                                    NOT NULL NUMBER
MINLEN                                             NUMBER
DEFLOG                                    NOT NULL NUMBER
EXT_MGT                                   NOT NULL NUMBER
ALLOC_TYPE                                NOT NULL NUMBER
BLOCKSIZE                                 NOT NULL NUMBER

#11g
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP and Real Application Testing options

SQL> desc sys.exu9tbs
名称                                      是否为空? 类型
----------------------------------------- -------- -------------------------
ID                                        NOT NULL NUMBER
OWNER                                              CHAR(6)
NAME                                      NOT NULL VARCHAR2(30)
ISONLINE                                           VARCHAR2(7)
CONTENT                                            VARCHAR2(9)
INIEXT                                    NOT NULL NUMBER
SEXT                                      NOT NULL NUMBER
PCTINC                                    NOT NULL NUMBER
MINEXT                                    NOT NULL NUMBER
MAXEXT                                    NOT NULL NUMBER
MINLEN                                             NUMBER
DEFLOG                                    NOT NULL NUMBER
EXT_MGT                                   NOT NULL NUMBER
ALLOC_TYPE                                NOT NULL NUMBER
BLOCKSIZE                                 NOT NULL NUMBER
MAXSIZE                                            NUMBER ------------------>problem

原来电脑上面装了Oracle 10g R2和Oracle 11g R2两个版本，默认的是使用的11G的，在10G的版本上面不能使用11G的EXP导出工具，导致出错。

更改到10G的目录下的EXP工具路径便可以了

E:\>cd E:\oracle\product\10.2.0\db_1\BIN

E:\>cd E:\oracle\product\10.2.0\db_1\BIN>exp system/pd0000@orcl file=d:\data.dmp wner=dev log=d:\log.log

导出 DEV 的表通过常规路径...

. . 正在导出表                    B_COMMON_BOX导出了           0 行

. . 正在导出表              B_COMMON_USERINJOB导出了           0 行

. . 正在导出表               DR$INDEX_SB_TAG$I导出了           0 行

. . 正在导出表               DR$INDEX_SB_TAG$K导出了           0 行

. . 正在导出表               DR$INDEX_SB_TAG$N导出了           0 行