How to move only subset of data from one database to another?
Both source & destination are Oracle11g databases.
The requirement details are as below,
1) The database contains static as well as transactional data for telecom domain.
2) We have to move region-wise data from one database to another.
3) There are around 10 regions.
4) The region wise data extraction from source db is based on around 40 to 50 tables. Rest of the tables contains
static data & it will not change.
5) The volume is around 1 million subscribers per region.
6) The migration is required because
a) The client is upgrading its base product which uses this database
b) There is a change in structure of static tables
c) Hardware upgrade
d) The client want to start with single region on new database & rest of the regions will be operated from old
database.
7) Keep execution time to very minimum.
I am thinking to have solution as below,
1) Create destination database with upgraded db structure (as mentioned in 6b)
2) Create database links to access source db in destination db.
3) Write SQL queries to fetch data from all the respective tables for a specific region
4) Write separate PL/SQL blocks for each table to fetch data from source db & insert into respective table in
destination db
a) Use FOR ALL & bulk collect to improve the performance
b) Divide table data into multiple chunks & execute parallel batches (around 10) to insert the data
5) Validate pre & post counts to verify the success of migration
Is there any other better way?
Regards,
Sandeep
How to move only subset of data from a partiular table by using transportable tablespace?
E.g. SUB table using SMP_SUB tablespace contains subscriber data in source database.
The indexes defined on SUB table are under SMP_IDX_SUB tablespace
The subscribers data can be categorized by different regions, say region_id column. Then how to move data & indexes of SUB table from source db to destination db?
any specific example would be helpful.
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Can any one help me on this, How i can move or copy the tables from one database to another database in SQL server 2005 by using SQL query. Hope can anyone provide me the useful and valuable response.
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GopiHello,
Maybe these links help you out
http://www.microsoft.com/downloads/en/details.aspx?familyid=56E5B1C5-BF17-42E0-A410-371A838E570A&displaylang=en
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How to move a selected row data from one grid to another grid using button click handler in flex4
hi friends,
i am doing flex4 mxml web application,
i am struck in this concept please help some one.
i am using two seperated forms and each form having one data grid.
In first datagrid i am having 5 rows and one button(outside the data grid with lable MOVE). when i am click a row from the datagrid and click the MOVE button means that row should disable from the present datagrid and that row will go and visible in the second datagrid.
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Thanks,
B.venkatesan.Hi,
You can get an idea from foolowing code and also from the link which i am providing.
Code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
width="613" height="502" viewSourceURL="../files/DataGridExampleCinco.mxml">
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
import mx.binding.utils.BindingUtils;
[Bindable]
private var allGames:ArrayCollection;
[Bindable]
private var selectedGames:ArrayCollection;
private function initDGAllGames():void
allGames = new ArrayCollection();
allGames.addItem({name: "World of Warcraft",
creator: "Blizzard", publisher: "Blizzard"});
allGames.addItem({name: "Halo",
creator: "Bungie", publisher: "Microsoft"});
allGames.addItem({name: "Gears of War",
creator: "Epic", publisher: "Microsoft"});
allGames.addItem({name: "City of Heroes",
creator: "Cryptic Studios", publisher: "NCSoft"});
allGames.addItem({name: "Doom",
creator: "id Software", publisher: "id Software"});
protected function button1_clickHandler(event:MouseEvent):void
BindingUtils.bindProperty(dgSelectedGames,"dataProvider" ,dgAllGames ,"selectedItems");
]]>
</mx:Script>
<mx:Label x="11" y="67" text="All our data"/>
<mx:Label x="10" y="353" text="Selected Data"/>
<mx:Form x="144" y="10" height="277">
<mx:DataGrid id="dgAllGames" width="417" height="173"
creationComplete="{initDGAllGames()}" dataProvider="{allGames}" editable="false">
<mx:columns>
<mx:DataGridColumn headerText="Game Name" dataField="name" width="115"/>
<mx:DataGridColumn headerText="Creator" dataField="creator"/>
<mx:DataGridColumn headerText="Publisher" dataField="publisher"/>
</mx:columns>
</mx:DataGrid>
<mx:FormItem label="Label">
<mx:Button label="Move" click="button1_clickHandler(event)"/>
</mx:FormItem>
</mx:Form>
<mx:Form x="120" y="333">
<mx:DataGrid id="dgSelectedGames" width="417" height="110" >
<mx:columns>
<mx:DataGridColumn headerText="Game Name" dataField="name" width="115"/>
<mx:DataGridColumn headerText="Creator" dataField="creator"/>
<mx:DataGridColumn headerText="Publisher" dataField="publisher"/>
</mx:columns>
</mx:DataGrid>
</mx:Form>
</mx:Application>
Link:
http://social.msdn.microsoft.com/Forums/en-US/winformsdatacontrols/thread/ae9bee8d-e2ac-43 c5-9b6d-c799d4abb2a3/
Thanks and Regards,
Vibhuti Gosavi | [email protected] | www.infocepts.com -
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How to move a specific tablespace datafile from one directory to another
Database: 10.2.0.1
OS : Generic
Problem Description : How to move a specific tablespace datafile from one directory to another considering that the database is on Oracle Dataguard setup
** Oracle is working on this issue, but in parallel is opening the topic to the Community so that Community members can add their perspective, experience or knowledge. This will further enhance all knowledge bases including My Oracle Support and My Oracle Support Communities **
Edited by: ram_orcl on 16-Aug-2010 21:21Dear ram_orcl,
Please follow the procedures here;
http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14239/manage_ps.htm#i1034172
8.3.4 Renaming a Datafile in the Primary Database
When you rename one or more datafiles in the primary database, the change is not propagated to the standby database. Therefore, if you want to rename the same datafiles on the standby database, you must manually make the equivalent modifications on the standby database because the modifications are not performed automatically, even if the STANDBY_FILE_MANAGEMENT initialization parameter is set to AUTO.
The following steps describe how to rename a datafile in the primary database and manually propagate the changes to the standby database.
1.
To rename the datafile in the primary database, take the tablespace offline:
SQL> ALTER TABLESPACE tbs_4 OFFLINE;
2.
Exit from the SQL prompt and issue an operating system command, such as the following UNIX mv command, to rename the datafile on the primary system:
% mv /disk1/oracle/oradata/payroll/tbs_4.dbf
/disk1/oracle/oradata/payroll/tbs_x.dbf
3.
Rename the datafile in the primary database and bring the tablespace back online:
SQL> ALTER TABLESPACE tbs_4 RENAME DATAFILE 2> '/disk1/oracle/oradata/payroll/tbs_4.dbf'
3> TO '/disk1/oracle/oradata/payroll/tbs_x.dbf';
SQL> ALTER TABLESPACE tbs_4 ONLINE;
4.
Connect to the standby database, query the V$ARCHIVED_LOG view to verify all of the archived redo log files are applied, and then stop Redo Apply:
SQL> SELECT SEQUENCE#,APPLIED FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
SEQUENCE# APP
8 YES
9 YES
10 YES
11 YES
4 rows selected.
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
5.
Shut down the standby database:
SQL> SHUTDOWN;
6.
Rename the datafile at the standby site using an operating system command, such as the UNIX mv command:
% mv /disk1/oracle/oradata/payroll/tbs_4.dbf /disk1/oracle/oradata/payroll/tbs_x.dbf
7.
Start and mount the standby database:
SQL> STARTUP MOUNT;
8.
Rename the datafile in the standby control file. Note that the STANDBY_FILE_MANAGEMENT initialization parameter must be set to MANUAL.
SQL> ALTER DATABASE RENAME FILE '/disk1/oracle/oradata/payroll/tbs_4.dbf'
2> TO '/disk1/oracle/oradata/payroll/tbs_x.dbf';
9.
On the standby database, restart Redo Apply:
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE
2> DISCONNECT FROM SESSION;
If you do not rename the corresponding datafile at the standby system, and then try to refresh the standby database control file, the standby database will attempt to use the renamed datafile, but it will not find it. Consequently, you will see error messages similar to the following in the alert log:
ORA-00283: recovery session canceled due to errors
ORA-01157: cannot identify/lock datafile 4 - see DBWR trace file
ORA-01110: datafile 4: '/Disk1/oracle/oradata/payroll/tbs_x.dbf'Hope That Helps.
Ogan -
How to copy the data from one database to another database without DB link
Good Day,
I want to copy the data from one database to another database with out DB link but the structure is same in both.
Thanks
NiharYou could use SQL*Plus' COPY command
http://technology.amis.nl/blog/432/little-gold-nugget-sqlplus-copy-command
http://download.oracle.com/docs/cd/B19306_01/server.102/b14357/apb.htm#sthref3702
Edited by: Alex Nuijten on Sep 16, 2009 8:13 AM -
Hi,
I need to transfer data from one database to another database (both are identical databases).
1. Not transferring identity columns (primary keys). the destination table might have the same key.
2. keep the PK's and FK's relation b/w parent and child table
3. I have 4 levels
Example: tableA (col1 int identity(1,1) , col2, col3)
tableB (col1 int identity(1,1) ,
col2 , col3) -- col2 has the foreign key relation with tableA.col1
tableC (col1 int identity(1,1) ,
col2, col3) -- col2 has the foreign key relation with tableB.col1
tableD (col1 int identity(1,1) , col2, col3) -- col2 has the foreign key relation with tableC.col1
please advise me.
Thanks in advanceTry the below:
/********************************SAMPLE TARGET***************************************************************/
Use MSDNSamples
create table TableA(LevelValueId int identity(1,1) primary key, name varchar(100))
Insert into TableA(name) Select 'R1'
Insert into TableA(name) Select 'R2'
create Table TableB(ChildId int identity(100,1),name varchar(100), LevelValueID int references TableA(LevelValueId))
Insert into TableB(name,LevelValueID) Select 'Childname1',1
/********************************SAMPLE TARGET***************************************************************/
/********************************SAMPLE SOURCE***************************************************************/
Use Sample
create table TableA(LevelValueId int identity(1,1) primary key, name varchar(100))
Insert into TableA(name) Select 'C1'
Insert into TableA(name) Select 'C2'
create Table TableB(ChildId int identity(100,1),name varchar(100), LevelValueID int references TableA(LevelValueId))
Insert into TableB(name,LevelValueID) Select 'Kidname1',1
/********************************SAMPLE SOURCE***************************************************************/
USe MSDNSamples
/********************************MIGRATION INTERMEDIATE TABLE***************************************************************/
--Migration table
Create table Mg_TableA(LevelValueId int, NewValueId int)
/********************************MIGRATION INTERMEDIATE TABLE***************************************************************/
/********************************ACTUAL MIGRATION FOR MASTER TABLE***************************************************************/
MERGE INTO TableA
USING sample.dbo.TableA AS tv
ON 1 = 0
WHEN NOT MATCHED THEN
INSERT(name) Values(tv.name)
Output tv.levelValueId ,inserted.LevelValueid INTO
Mg_TableA;
/********************************ACTUAL MIGRATION FOR MASTER TABLE***************************************************************/
/********************************ACTUAL MIGRATION FOR CHILD TABLE***************************************************************/
Insert into TableB (name,LevelValueID)
Select A.name,B.NewValueId From sample.dbo.TableB A
Inner join Mg_TableA B on A.LevelValueID = B.LevelValueId
/********************************ACTUAL MIGRATION FOR CHILD TABLE***************************************************************/
/********************************TEST THE VALUES***************************************************************/
Select * From TableA
Select * From Mg_TableA
Select * From TableB
/********************************TEST THE VALUES***************************************************************/
Drop table TableB,Tablea,Mg_TableA
Use Sample
Drop Table TableB,Tablea -
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Hi all,
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correct me if i am wrong or tell me if there is any other options are available.
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I told first one to my interviewer, he told, its strange, by using, COPY command also can we transfer data ? As far as i know, we can transfer data. Am i right ?
Thanks in advance,
Paltransfer data from one database to another database.You mean store the data of one to another?
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But there are many others. Check for ORACLE Streams, and the "COPY" your interviewer was mentioning is about the operating file system COPY right? That's transportable tablespaces.
http://download.oracle.com/docs/cd/E11882_01/server.112/e17120/tspaces013.htm#ADMIN11403
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hi all
can please any one tel me hw to copy the reports along with pages from one dashboard to another
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Go to Administrator->Manage Presentation Catalg->Click on Group folder under which the dashboard and reports are present
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Hello,
We have an application which uses an Oracle 9i server database. On this server we have two databases ( one for test and one for production ).
From time to time it's required to transfer data from production database to test database.
The steps followed by the ones which made the transfer are:
a) drop the user schema ( the one which contains all data)
b) recreate the user
c) import the data ( using import utility )
d) compile invalid object ( what this will mean I don't know)
It's not possible to delete only the content of the tables and then import data from a dump file? In this way the steps c) and d) will no longer be required. If this is possible can you tell me if is there a command which will delete all data from all table ( almost 2000 tables)?
Thank you fro your help!I think ..following a,b,c,d is the best way to maintain consistency. you are just thinking about the data in the tables, but what about the changes in views,procedures,functions etc....
compile invalid object ( what this will mean I don't know)create a file xxx.sql with following code and execute it from sql*plus
set echo off
set head off
set feedback off
set timing off
spool compile_invalid_obj.sql
select 'ALTER '||DECODE(OBJECT_TYPE,'PACKAGE BODY','PACKAGE',OBJECT_TYPE)||' '||OBJECT_NAME||' '||DECODE(OBJECT_TYPE,'PACKAGE','COMPILE PACKAGE;','PACKAGE BODY','COMPILE PACKAGE;','COMPILE;')
from user_objects
where status = 'INVALID';
spool off
set feedback on
set echo on
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@compile_invalid_obj.sql
HTH
--Chaitanya -
How to move data from one database to another one?
I 'd like to build up a new database, some of the data would come from an old database, then I have to make two connection objects to both databases, (two statement objects...) retrieving the data from the old one and inserting them to the new one.... sounds reasonable, huh? but it could not work this way... "........it would have caused the duplicated value , blah, blah..." even though I made two tables in two databases completely different, that errors are still there. seemed I cannot clone that table.
could you guys have any better ideas? and why couldn't I go this way?
the database: cloudscape3.01
two databases are all on my local PC (WinNT4.0)
thanksIf you are getting dupicate record errors, then look at your recordset objects and make sure they are both pointing at seperate databases, and check the one you are using to output and make sure it isn't just writing NULL, if it is then trace up the line: your input (read) recordset may be reading NULL too.
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How to move data from one database to another oracle database
Hi
All,
AIX 5.3
Oracle 10.2.0.3
I want to move data between one oracle database to another oracle database.
I know two method those are
export/import
dblink
is there any other way I can move data?
Thanks,
VishalI know below methods. However, using a perticular method is based on volume and type of data.
1. imp/exp
2. impdp/expdp
3. SQL COPY command
4. Transportable tablespace mathod
5. dblink
6. Export to flatfile and then use SQL Loader
7. Oracle Migration Workbench
Cheers
Sameer
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