中文表名-导入导出-字符集

中文表名-导入导出-字符集

作者：eygle |English Version 【版权声明：转载时请务必以超链接形式标明文章原始出处和作者信息及本声明】
链接：http://www.eygle.com/archives/2005/10/chinese_tablename_exp_imp.html


见到有人问关于中文表名的导入导出问题，随手作了一个实验。
其实我从不推荐使用中文表名，因为可能在导入导出、字符集设置、应用显示等方面存在问题，要想正确解决面对的所有问题，必然需要对Oracle相关知识具有相当的了解，否则只是徒增困扰而已。

这个实验之前，只是见过别人使用中文表名、字段名等，自己却是第一次尝试，万事都有第一次么。
1.用中文名建立一个测试表

SQL> create table 测试 as select username from dba_users;

Table created.

Elapsed: 00:00:00.08
SQL> select * from 测试;

USERNAME
------------------------------
SYS
SYSTEM
OUTLN
EYGLE
CSMIG
TEST
REPADMIN
SCOTT
...
DBSNMP
WMSYS

13 rows selected.

Elapsed: 00:00:00.00

2.exp导出数据
导出的时候需要注意客户端的字符集设置

[oracle@jumper oracle]$ exp eygle/eygle file=a.dmp          

Export: Release 9.2.0.4.0 - Production on Tue Oct 18 10:58:24 2005

Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.


Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

About to export specified users ...
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user EYGLE 
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user EYGLE 
About to export EYGLE's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
. about to export EYGLE's tables via Conventional Path ...
. . exporting table                     PLAN_TABLE          0 rows exported
. . exporting table                             T1          5 rows exported
. . exporting table                             T2         13 rows exported
. . exporting table                           测试         13 rows exported
. ...
Export terminated successfully without warnings.

3.drop掉测试表

SQL> drop table 测试
  2  /

Table dropped.

Elapsed: 00:00:00.36

4.imp导出数据

[oracle@jumper oracle]$ imp eygle/eygle file=a.dmp tables=测试

Import: Release 9.2.0.4.0 - Production on Tue Oct 18 10:59:03 2005

Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.


Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production

Export file created by EXPORT:V09.02.00 via conventional path
import done in ZHS16GBK character set and AL16UTF16 NCHAR character set
. importing EYGLE's objects into EYGLE
. . importing table                         "测试"         13 rows imported
Import terminated successfully without warnings.

5.验证数据无误

SQL> select * from 测试; 

USERNAME
------------------------------
SYS
SYSTEM
OUTLN
EYGLE
CSMIG
TEST
...
WMSYS

13 rows selected.

Elapsed: 00:00:00.01

SQL> 

那么看来只要设置正确，也没有什么问题。