Oracle
我們可以使用數據泵導出帶有子查詢的選定行嗎
我正在嘗試使用 SUBQUERY 從我的數據庫中導出選定的行,但出現錯誤。
expdp directory=exp_data dumpfile=selected_row.dmp logfile=rows.log tables=sample,super query="where name IN (select name from azeem.sample where name like 'Ten');" Export: Release 11.2.0.4.0 - Production on Tue Jan 12 21:58:37 2016 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Username: / as sysdba Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options ORA-39001: invalid argument value ORA-39035: Data filter SUBQUERY has already been specified.
我們可以在數據泵中使用子查詢嗎?
我們可以在數據泵中使用子查詢嗎?
我們可以。以下範例顯示瞭如何執行此操作。
我創建了一個參數文件來完成這項工作。在我的測試案例中,我有兩個表
tbl1
,即tbl2
在HR
模式下。您可以根據需要更改模式的名稱。[oracle@testsrv Desktop]$ cat query.par Directory=user_dir DUMPFILE=select_row.dmp logfile=rows.log tables=hr.tbl1, hr.tbl2 Query=hr.tbl1:"where name IN (select name from hr.tbl2 where name like '%T%')"
然後我使用了以下 expdp 命令來完成任務。
[oracle@testsrv Desktop]$ expdp system/oracle parfile=query.par Export: Release 11.2.0.4.0 - Production on Mon Mar 21 15:59:18 2016 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options Starting "SYSTEM"."SYS_EXPORT_TABLE_01": system/password parfile=query.par Estimate in progress using BLOCKS method... Processing object type TABLE_EXPORT/TABLE/TABLE_DATA Total estimation using BLOCKS method: 128 KB Processing object type TABLE_EXPORT/TABLE/TABLE . . exported "HR"."TBL1" 5 KB 0 rows . . exported "HR"."TBL2" 5.007 KB 1 rows Master table "SYSTEM"."SYS_EXPORT_TABLE_01" successfully loaded/unloaded ****************************************************************************** Dump file set for SYSTEM.SYS_EXPORT_TABLE_01 is: /home/oracle/Desktop/select_row.dmp Job "SYSTEM"."SYS_EXPORT_TABLE_01" successfully completed at Mon Mar 21 16:00:05 2016 elapsed 0 00:00:41