EXP AND IMP

purpors: exp pro data to uat data

exp and imp will not create user

expdp and impdp will create user

1.from table to table

-> IN PROD TS

exp TS/TEST_Data130@TSprod file=D:\projects\TS\TS_TS_20160908_update.dmp  log=D:\projects\TS\eais_all_exp_2016_09_02.log  TABLES=(TS_record_his,TS_record)

->IN UAT

imp TS/gatepassuat_data2@TSuat file=D:\projects\TS\TS_TS_20160908_update.dmp log=D:\projects\TS\TS_upd_imp_2016_09_05.log  fromuser=TS touser=TS tables=(TS_record_his,TS_record)

expdp/impdp

-> IN PROD user:TS

expdp system/oracle123@TSprod file=TS_TS_20160908_update.dmp  directory=TMP_DIR log=TS_all_exp_2016_09_02.log  tables=('TS.TS_record_his','TS.TS_record')

->IN UAT

impdp system/oracle123_@TSuat  directory=DUMP_DIR dumpfile=TS_TS_20160908_update.dmp  log=TS_all_imp_2016_09_02.log table_exists_action=replace remap_schema=TS:TS

--tables=('TS_record_his','TS_record') table_exists_action=replace remap_schema=TS:TS;

--tables=TS.TS_record_his,TS.TS_record remap_schema=TS:TS;

-> in prod SQL> select * from dba_directories;

OWNER                          DIRECTORY_NAME ------------------------------ ------------------------------ DIRECTORY_PATH ------------------------------------------------------------------------ SYS                            TMP_DIR D:\dba\tmp

SYS                            XMLDIR D:\app\Administrator\product\11.2.0\dbhome_1\rdbms\xml

SYS                            ORACLE_OCM_CONFIG_DIR D:\app\Administrator\product\11.2.0\dbhome_1/ccr/state

OWNER                          DIRECTORY_NAME ------------------------------ ------------------------------ DIRECTORY_PATH ------------------------------------------------------------------------ SYS                            DATA_PUMP_DIR D:\app\Administrator/admin/TSprod/dpdump/

SYS                            ORACLE_OCM_CONFIG_DIR2 D:\app\Administrator\product\11.2.0\dbhome_1/ccr/state

-> in UAT SQL> select * from dba_directories;

OWNER                          DIRECTORY_NAME ------------------------------ ------------------------------ DIRECTORY_PATH -------------------------------------------------------------------------------- SYS                            DUMP_DIR D:\dba\dump

SYS                            XMLDIR D:\app\Administrator\product\11.2.0\dbhome_1\rdbms\xml

SYS                            ORACLE_OCM_CONFIG_DIR D:\app\Administrator\product\11.2.0\dbhome_1/ccr/state

OWNER                          DIRECTORY_NAME ------------------------------ ------------------------------ DIRECTORY_PATH -------------------------------------------------------------------------------- SYS                            DATA_PUMP_DIR D:\app\Administrator/admin/TSuat/dpdump/

SYS                            ORACLE_OCM_CONFIG_DIR2 D:\app\Administrator\product\11.2.0\dbhome_1/ccr/state

2.from schema to schema

-Prepare:
c:\app\oracle\dump: datapump

select count(*) from dba_objects where owner IN
(select username from dba_users where account_status='OPEN' and username not in ('SYS','SYSTEM','OPER','BACKUPDB'))

select owner,object_name from dba_objects where owner IN
(select username from dba_users where account_status='OPEN' and username not in ('SYS','SYSTEM','OPER','BACKUPDB'))
and statuS='INVALID';

-charater
SELECT * FROM v$nls_parameters WHERE PARAMETER='NLS_CHARACTERSET';   
set NLS_LANG="AMERICAN_AMERICA.AL32UTF8"

-rollout

in prod

expdp system/oracle123@testuat file=TS_TS_20160928_update.dmp  directory=datapump log=TS_all_exp_2016_09_28.log  SCHEMAS='etestquery','testrusr','testdata' parallel=2

in uat

impdp tuser/tuser file=TS_TS_20160928_update.dmp  directory=datapump 'etestquery','testrusr','testdata' table_exists_action=replace parallel=2;

in prod

expdp system/oracle123@testuat file=TS_TS_20160928_update.dmp  directory=DATA_PUMP_DIR log=TS_all_exp_2016_09_28.log  SCHEMAS='etestquery','testrusr','testdata' parallel=2;

in uat

impdp tuser/tuser file=TS_TS_20160928_update.dmp  directory=DATA_PUMP_DIR SCHEMAS='etestquery','testrusr','testdata' table_exists_action=replace parallel=2  log=TS_all_imp_2016_09_28.log;

执行@$ORACLE_HOME/rdbms/admin/utlrp.sql脚本编译数据库失效对象。

Run the utlrp.sql script as SYS user.
@%ORACLE_HOME%/rdbms/admin/utlrp.sql

3.ps

使用imp进行数据导入时，若表已经存在，要先drop掉表，再进行导入。

而使用impdp完成数据库导入时，若表已经存在，有四种的处理方式：

1)  skip：默认操作

2)  replace：先drop表，然后创建表，最后插入数据

3)  append：在原来数据的基础上增加数据

4)  truncate：先truncate，然后再插入数据