使用 "expdp" 在 Oracle 中导出序列

Question

我正在使用以下命令将我的序列导出到 Oracle 中的转储文件：

expdp user/pwd DIRECTORY=user_exp DUMPFILE=morder.dmp  include=sequence:HR.EMPLOYEES

其中 EMPLOYEES 是我的序列名称。但是，我收到此错误：

ORA-39001 invalid argument value
ORA-39071 Value for INCLUDE is badly formed
ORA-00920 invalid relational operator

有人可以指导一下吗？我做错了什么？

Answer 1

如果您想从特定 SCHEMA 中导出序列，请使用：

expdp user/pwd SCHEMAS=HR DIRECTORY=user_exp DUMPFILE=morder.dmp include=sequence:EMPLOYEES

（添加 SCHEMAS 并删除序列的所有者）

Answer 2

对象名称子句has to be enclosed in double-quotes, and has to have a relational operator:

The name_clause is optional. It allows fine-grained selection of specific objects within an object type. It is a SQL expression used as a filter on the object names of the type. It consists of a SQL operator and the values against which the object names of the specified type are to be compared. The name_clause applies only to object types whose instances have names (for example, it is applicable to TABLE, but not to GRANT). It must be separated from the object type with a colon and enclosed in double quotation marks, because single quotation marks are required to delimit the name strings.

但它也不能包含架构名称；它必须是一个对象名称。如果您以 HR 用户身份连接到 expdp，那么这是默认设置，您可以这样做：

expdp hr/pwd DIRECTORY=user_exp DUMPFILE=morder.dmp include=sequence:"= 'EMPLOYEES'"

如果您以不同的特权用户身份连接，则需要包含 schemas 子句，否则它将无法找到对象：

expdp system/pwd DIRECTORY=user_exp DUMPFILE=morder.dmp schemas=hr include=sequence:"= 'EMPLOYEES'"

根据您的操作系统，您可能需要转义各种内容：

Depending on your operating system, the use of quotation marks when you specify a value for this parameter may also require that you use escape characters. Oracle recommends that you place this parameter in a parameter file, which can reduce the number of escape characters that might otherwise be needed on the command line. See "Use of Quotation Marks On the Data Pump Command Line".

在 Linux/bash 上，include 子句结束为：

... include=sequence:\"= \'EMPLOYEES\'\"

双引号和单引号都转义了。从上一个问题你可能在Windows，我只需要转义双引号：

... include=sequence:\"= 'EMPLOYEES'\"

最后，EMPLOYEES 看起来像一个 table 名字；你可能真的想要 EMPLOYEES_SEQ:

... include=sequence:\"= 'EMPLOYEES_SEQ'\"

Answer 3

这是我环境中的 copy/paste：

[oracle@testsrv ~]$ expdp uuu/uuu schemas=uuu DIRECTORY=dir1 DUMPFILE=morder3.dmp  include=sequence

Export: Release 12.1.0.2.0 - Production on Mon Nov 16 22:16:59 2015

Copyright (c) 1982, 2014, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
Starting "UUU"."SYS_EXPORT_SCHEMA_01":  uuu/******** schemas=uuu DIRECTORY=dir1 DUMPFILE=morder3.dmp include=sequence 
Estimate in progress using BLOCKS method...
Total estimation using BLOCKS method: 0 KB
Processing object type SCHEMA_EXPORT/SEQUENCE/SEQUENCE
Master table "UUU"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
******************************************************************************
Dump file set for UUU.SYS_EXPORT_SCHEMA_01 is:
  /home/oracle/morder3.dmp
Job "UUU"."SYS_EXPORT_SCHEMA_01" successfully completed at Mon Nov 16 22:17:03 2015 elapsed 0 00:00:03

[oracle@testsrv ~]$

使用 "expdp" 在 Oracle 中导出序列

Export sequence in Oracle using "expdp"

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export

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