根據客戶要求從生產庫中導出3張表到測試庫，在表導入的時候出現ORA-00017 IMP-00003 ORA-02264錯誤，下面是具體操作：
1.導出表
C:\Users\hzq> exp mbp/mbp@mbpdb file='C:\table_exp\20160519.dmp' log=20160519.log tables=pay_trade_list,pay_card_info,pay_cust_info
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
About to export specified tables via Conventional Path ...
. . exporting table PAY_TRADE_LIST 8229042 rows exported
. . exporting table PAY_CARD_INFO 329223 rows exported
. . exporting table PAY_CUST_INFO 329238 rows exported
Export terminated successfully without warnings.
2.刪除測試庫的表
truncate table PAY_TRADE_LIST;
truncate table PAY_CARD_INFO;
truncate table PAY_CUST_INFO;
drop table PAY_TRADE_LIST;
drop table PAY_CARD_INFO;
drop table PAY_CUST_INFO;
3. 導入表
ZY1:/home/oracle#imp mbp/mbp file=/home/oracle/20160519.dmp ignore=y full=y log=20160519.log
Import: Release 11.2.0.3.0 - Production on Thu May 19 15:54:17 2016
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Pro
ductionWith the Partitioning, OLAP, Data Mining and Real Application Testing options
Export file created by EXPORT:V11.02.00 via conventional path
import done in ZHS16GBK character set and AL16UTF16 NCHAR character set
. importing MBP's objects into MBP
. importing MBP's objects into MBP
. . importing table "PAY_TRADE_LIST" 8229042 rows imported
. . importing table "PAY_CARD_INFO" 329223 rows imported
IMP-00017: following statement failed with ORACLE error 2264:
"ALTER TABLE "PAY_CARD_INFO" ADD CONSTRAINT "PK_PAY_CARD_INFO" PRIMARY KEY "
"("ID") DISABLE "
IMP-00003: ORACLE error 2264 encountered
ORA-02264: name already used by an existing constraint
. . importing table "PAY_CUST_INFO" 329238 rows imported
IMP-00017: following statement failed with ORACLE error 2264:
"ALTER TABLE "PAY_CUST_INFO" ADD CONSTRAINT "PK_PAY_CUST_INFO" PRIMARY KEY "
"("ID") DISABLE "
IMP-00003: ORACLE error 2264 encountered
ORA-02264: name already used by an existing constraint
Import terminated successfully with warnings.
由報錯可知，是由於“PK_PAY_CARD_INFO”主鍵已經存在，於是查看那張表占用了主鍵名
SQL> select table_name,constraint_type,constraint_name from user_constraints where
constraint_name='PK_PAY_CARD_INFO';
TABLE_NAME C CONSTRAINT_NAME
------------------------------ - ------------------------------
PAY_CARD_INFO_20160504 P PK_PAY_CARD_INFO
查看數據導入情況，和上面的導出的數據量一樣，在與客戶溝通得知，客戶只需要數據，主鍵約束會自己重建。
SQL> select count(*) from PAY_TRADE_LIST;
COUNT(*)
----------
8229042
SQL> select count(*) from PAY_CARD_INFO;
COUNT(*)
----------
329223
SQL> select count(*) from PAY_CUST_INFO;
COUNT(*)
----------
329238
