Select table from another database

Hello
Consider 2 oracle databases: A and B.
How can i create a table in database A receiving records through a select statement to a table Z in database B?
Is this possible?
I thank in advance all your replies!

You need to create a database link on table A which points to the correct schema on table B.
Note that there needs to be an entry in the tnsnames.ora file (assuming you're using local naming) on server A which points to the database on Server B.
Then you just reference the table via the database link.
eg select * from dual@TNSB would access the dual table on server B.
(assuming TNSB is the database link name)
If you use v$instance rather than dual (and have appropriate privileges) you will see the servername of server b rather than server a.
Edited by: Keith Jamieson on Oct 1, 2008 3:13 PM

Similar Messages

Select data from another database

Hi,
Is it possible to retrieve data from a table from another database?
For instance, I have two databases db_1 and db_2
I login to the database db_1 using
sqlplus username/psw@db1
and to the database db_2 using
sqlplus username/psw@db2
In SQL> db1 I would like to use select statement from a table in the db2. Is it possible?
Another question:
I have two tablespaces TP1 and TP2 in the database db1
The TP1 is my default tablespace.
Can I switch from TP1 to TP2 tablespace in the sqlplus?
If not, how can I select all tables obtained in the TP2? Or how can I select data from a table in the TP2?
Thanks

I don't know how to create a db link. 
SQL Reference Guide - CREATE DATABASE LINK 
There are some examples in the doc above. 
 
What about if db1 and db2 have the same table name? No problem, exactly like when you have two same table name accross two schemas on same database. The table suffixed by the dblink name come from the other schema of other database (schema which you use to connect through the dblink to the other database). 
 
Nicolas.

Query with Tables from another Database

Hi.
I have a problem with a Query that executes a stored procedure that inserts data in a Table from another DataBase. The problem is when I try to execute a Query with the data related of that table using the user parameters of SBO ('[%0]'....'[%3]'). I use the following parameters for reference to the Table:
"....FROM [-BDName-].[dbo].[-TableName-] T1..... "
Any suggestions? Thanks a lot....
(Suggestions in English or Spanish)

None

How to update date in a table from another database

Hello,
I am trying to code a way to Update my Testing database from another database. In the coding below the database that has the updated data ends in Restore.
Use ClientDB_MASTER_Restore
Truncate Table ClientDB_MASTER_Testing.dbo.Activity_Tracking_AZ
GO
SELECT * INTO ClientDB_Master_Testing.dbo.Activity_Tracking_AZ
FROM Activity_Tracking_AZ
Go
I know with this Technique the table must be truncated if not deleted first. There is probably a better way to do this which I'm very open to. I'm also looking for coding that will roll back any changes made should an error occur.
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David92595

USE ClientDB_MASTER_Testing
go
SET XACT_ABORT ON
BEGIN TRANSACTION
Truncate Table dbo.Activity_Tracking_AZ
-- SET IDENTITY_INSERT dbo.Activity_Tracking_AZ ON
INSERT dbo.Activity_Tracking_AZ (col1, col2, ...)
SELECT col1, col2,
FROM ClientDB_MASTER_Restore.dbo.Activity_Tracking_AZ
-- SET IDENTITY_INSERT dbo.Activity_Tracking_AZ OFF
COMMIT TRANSACTION
If you find it boring to type the column lists, just find the table in Object Explorer, and drag the columns node to where you want the column list.
You need the SET IDENTITY_INSERT command if the table has an IDENTITY column.
By wrapping the code in a transaction, you are not left with an empty table if the INSERT fails. The command SET XACT_ABORT ON makes sure that the batch is aborted and rolled back in case of an error.
Erland Sommarskog, SQL Server MVP, [email protected]

How to import a table from another database using DB toolset.

Hello All
I would like to import a table from one database to another using DB toolbox.
I do not want to import all data to LV and then save them to another database. Instead I would prefer to use SQL syntax.
Does anobody know how to write SQL command to import whole table from one database to another?
I have found in some SQL manual that INSERT INTO should work, but JET4 returns an error that table (e.g. c:\mydatabase\table1) can not be found.
Thanks in advance
Pawel

if i don't have TEST table on server B whether COPY command will create this table on server B with the same structure ? If you specify CREATE as a clause the table will be created:
SQL> help copy
COPY
COPY copies data from a query to a table in a local or remote
database. COPY supports CHAR, DATE, LONG, NUMBER and VARCHAR2.
COPY {FROM database | TO database | FROM database TO database}
            APPENDCREATE|INSERT|REPLACE} destination_table
            [(column, column, column, ...)] USING query
where database has the following syntax:
     username[password]@connect_identifier

Select records from one database and insert it into another database

Hi
I need to write a statement to select records from one database which is on machine 1 and insert these records on a table in another database which is on machine 2. Following is what I did:
1. I created the following script on machine 2
sqlplus remedy_intf/test@sptd @load_hrdata.sql
2. I created the following sql statements in file called load_hrdata.sql:
rem This script will perform the following steps
rem 1. Delete previous HR data/table to start w/ clean import tables
rem 2. Create database link to HR database, and
rem 3. Create User Data import table taking info from HR
rem 4. Drop HRP link before exiting
SET COPYCOMMIT 100
delete from remedy.remedy_feed;
commit;
COPY FROM nav/donnelley@hrp -
INSERT INTO remedy.remedy_feed -
(EMPLID, FIRST_NAME, MI, LAST_NAME, BUSINESS_TITLE, WORK_PHONE, -
RRD_INTRNT_EMAIL, LOCATION, RRD_OFFICE_MAIL, RRD_BUS_UNIT_DESCR) -
USING SELECT EMPLID, FIRST_NAME, MI, LAST_NAME, BUSINESS_TITLE, WORK_PHONE, -
RRD_INTRNT_EMAIL, LOCATION, RRD_OFFICE_MAIL, RRD_BUS_UNIT_DESCR -
FROM ps_rrd_intf_medium -
where empl_status IN ('A', 'L', 'P', 'S', 'X')
COMMIT;
EXIT;
However, whenever I run the statement I keep getting the following error:
SP2-0498: missing parenthetical column list or USING keyword
Do you have any suggestions on how I can fix this or what am I doing wrong?
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To copy table from one database to another

hai,
I will be really pleased if someone can me tell me that how can i copy table from one database to another. I am having two databases.
Gursimran

You can Also do
++ Create a database link on the TARGET to SOURCE
CREATE PUBLIC DATABASE LINK <<DBLNK_NAME>> CONNECT TO <<USER>> IDENTIFIED BY <<PASSOWORD>> USING '<<TNS_NAME>>';
++ And copy as below
CREATE TABLE EMP AS SELECT * FROM EMP@DBLNK_NAME;

What is te best way to copy a table from a database to another?

Hello friends:
I have two databases: an Access database and an Oracle database. I must copy the data from al tables from the Access database to the oracle database. The tables in the both databases are equal (number of columns, type, etc).
I read an resultset from acces (select * from table1) and I insert every row in the Oracle database with an while loop (while (r.next)...). It works fine when there are a few rows, but I have a table with over 200000 rows, and when I'm copying the row number 30.000, the system goes very slow...
How can I copy tables from a database to another more quickly?
Thanks!

CASE #1
The most efficient method would be to copy all the rows from Microsoft Access and write them to a text file using Access's native interface (not JDBC), then use Oracle's SQL Loader utility (not JDBC) to insert the data.
You can insert 200,000 rows of 80 bytes each in 30 seconds or less even on a modest Oracle system using SQL Loader. The extract from Access is very dependent on the size of the CPU and the available memory.
Hint 1: Avoid explicit or implict network traffic.
Hint 2: Extract and load from local drives rather than networked or shared drives on other services
Please note that this is done for efficiency of load, but has issues related to error checking, and operational scripting.
Anything else you do or use will be slower than the method (above).
CASE #2
If you want to integrate this into a single JDBC program which will provide better operational management of the process, then you can simply connect to both databases in your Java program, then read the rows one at a time from Access, insert them using the Batch mechanism of JDBC to Oracle. You will also want to set the FetchSize in Oracle to a larger value then the default (i.e set it to 100 vs 10).
Hint #3 You may want to look into alternative JDBC drivers for accessing MS Access, rather than the JDBC-ODBC bridge which is not optimized for MS Access. You may also want to consider using the OCI8 driver from Oracle rather than the thin driver. Both provide Type 4 functionality but I have heard (not experienced) that the OCI8 driver is better for managing batch style of processing like yours
Good luck!
Joel

How to import a table from another oracle database ?

Hi all ,
i could like to use pl/sql to import one table from another oracle database server ?
is it possible to do this ?
A server B server
table: test <------------------------> table : newtest
the tns profile already configurated . the connection is ready .
thanks a lot !
Best Regards,
Carlos

if i don't have TEST table on server B whether COPY command will create this table on server B with the same structure ? If you specify CREATE as a clause the table will be created:
SQL> help copy
COPY
COPY copies data from a query to a table in a local or remote
database. COPY supports CHAR, DATE, LONG, NUMBER and VARCHAR2.
COPY {FROM database | TO database | FROM database TO database}
 APPENDCREATE|INSERT|REPLACE} destination_table
 [(column, column, column, ...)] USING query
where database has the following syntax:
 username[password]@connect_identifier

Select query based on joining of tables from different database is taking too long

Hi Team,
Select query on table with millions of records is taking very long time. It took 50mins, the below query is joining on multiple table from two databases DB1.dbo.Table1 contains 100 million records and also Table3 and Table4 (of different database) might
contain close to 1million records.
Select T1.*
From DB1.dbo.Table1 T1
Join DB1.dbo.Table2 T2 on RTRIM(T1.Col3) = RTRIM(T2.Col3)
Join Table4 CA on RTRIM(T1.Col1) + T2.Col2 = CA.Col1
Join Table3 U on CA.Col2 = U.Col2 AND RTRIM(T2.Col2) = U.Col3
Where U.Col4 NOT IN ('A1', 'A2', 'A3', 'A4', 'A5', 'A6','A7','A8','A9')
And (T1.flg IS NULL OR T1.flg = 'N')
And LTRIM(RTRIM(T2.Col2)) NOT IN ('B1','B2')
How can i improve the performance of this query. Actual thing is update the data in Db1.dbo.table1 based on the conditions but if the select is taking close to 1hr then update will take hours together. Indexes already implemented on all the tables.
Thanks,
Eshwar.
Please don't forget to Marked as Answer if my post solved your problem and use Vote As Helpful if a post was useful. It will helpful to other users.

Thanks.
Join Table4 CA on RTRIM(T1.Col1) + T2.Col2 = CA.Col1
This join is not working with spaces if Rtrim is not used.
Thanks! Eshwar.
Please don't forget to Marked as Answer if my post solved your problem and use Vote As Helpful if a post was useful. It will helpful to other users.

How to Move or Copy the Tables from One Database to Another Database ?

HI,
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.
Thanks
Gopi

Hello,
Maybe these links help you out
http://www.microsoft.com/downloads/en/details.aspx?familyid=56E5B1C5-BF17-42E0-A410-371A838E570A&displaylang=en
http://www.suite101.com/content/how-to-copy-a-sql-database-a193532
Also, you can just detach the database make a copy and move it to the new server.

How to use an Object Type from Another Database

Hi,
I have this requirement that I need to call a stored procedure from another DB (db1) but I am having a problem with this because one of the input parameters uses an object type defined in that DB (db1). Is it possible to use an object type from another database? TIA!

Sven W. wrote:
At least for queries, but I think also for procedure arguments..You (both) probably missed my post?
We can't use a remote type as procedure argument, even with the same OID.
It's OK for query on a remote object column though :
SQL> conn remote_user@remote_db
Entrez le mot de passe :
Connecté.
SQL> create type mytype oid '19A57209ECB73F91E03400400B40BBE3'
2 as object (att1 number);
3 /
Type créé.
SQL> create table mytable (col1 mytype);
Table créée.
SQL> insert into mytable values (mytype(777));
1 ligne créée.
SQL> create or replace function myfunc (p_in in mytype) return number
2 is
3 begin
4   return p_in.att1;
5 end;
6 /
Fonction créée.
SQL> disconn
Déconnecté de Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL>
SQL>
SQL>
SQL>
SQL>
SQL> conn my_user@local_db
Entrez le mot de passe :
Connecté.
SQL> create type mytype oid '19A57209ECB73F91E03400400B40BBE3'
2 as object (att1 number);
3 /
Type créé.
SQL> select * from mytable@test_dbl;
COL1(ATT1)
MYTYPE(777)
SQL> declare
2   res number;
3 begin
4   res := myfunc@test_dbl(mytype@test_dbl(777));
5 end;
6 /
res := myfunc@test_dbl(mytype@test_dbl(777));
ERREUR à la ligne 4 :
ORA-06550: Ligne 4, colonne 26 :
PLS-00331: référence non valide à REMOTE_USER.MYTYPE@TEST_DBL.WORLD
ORA-06550: Ligne 4, colonne 2 :
PL/SQL: Statement ignored
SQL> declare
2   res number;
3 begin
4   res := myfunc@test_dbl(mytype(777));
5 end;
6 /
res := myfunc@test_dbl(mytype(777));
ERREUR à la ligne 4 :
ORA-06550: Ligne 4, colonne 9 :
PLS-00306: numéro ou types d'arguments erronés dans appel à 'MYFUNC'
ORA-06550: Ligne 4, colonne 2 :
PL/SQL: Statement ignored

How to update one table from another

I am creating scripts in Oracle 10g. I have a table that has data corruption on three date fields.
I created a table with the following sql of all the affected rows:
CREATE TABLE LSU_INTER_FIX_DATE AS
select request_id,received_date,planned_start_date, actual_start_date
from lsu_inter2_requests_t
where received_date < to_date('01-JAN-1900')
OR planned_start_date < to_date('01-JAN-1900')
OR actual_start_date < to_date('01-JAN-1900')
I then repaired all of the rows with three data fixes
UPDATE LSU_INTER_FIX_DATE
SET received_date = TO_CHAR(received_date,'YY-MON') ||'-'||(TO_CHAR(received_date,'RRRR') + 2000)
where received_date < to_date('01-JAN-1900')
UPDATE LSU_INTER_FIX_DATE
SET planned_start_date = TO_CHAR(planned_start_date,'YY-MON') ||'-'||(TO_CHAR(planned_start_date,'RRRR') + 2000)
where planned_start_date < to_date('01-JAN-1900')
UPDATE LSU_INTER_FIX_DATE
SET actual_start_date = TO_CHAR(actual_start_date,'YY-MON') ||'-'||(TO_CHAR(actual_start_date,'RRRR') + 2000)
where actual_start_date < to_date('01-JAN-1900')
I now want to update the original base table with the corrected data so I wrote the following SQL UPDATE command:
UPDATE lsu_inter2_requests_t aaa
SET aaa.received_date = bbb.received_date
FROM LSU_INTER_FIX_DATE bbb WHERE aaa.request_id = bbb.request_id
When I run this sql Oracle returns the error “ORA-00933 SQL command not properly ended.” How do I update multiple rows in one table from another table that share the same primary key?

Comet wrote:
I am creating scripts in Oracle 10g. I have a table that has data corruption on three date fields.
I created a table with the following sql of all the affected rows:
CREATE TABLE LSU_INTER_FIX_DATE AS
select request_id,received_date,planned_start_date, actual_start_date
from lsu_inter2_requests_t
where received_date < to_date('01-JAN-1900')
OR planned_start_date < to_date('01-JAN-1900')
OR actual_start_date < to_date('01-JAN-1900')
I then repaired all of the rows with three data fixes
UPDATE LSU_INTER_FIX_DATE
SET received_date = TO_CHAR(received_date,'YY-MON') ||'-'||(TO_CHAR(received_date,'RRRR') + 2000)
where received_date < to_date('01-JAN-1900')
UPDATE LSU_INTER_FIX_DATE
SET planned_start_date = TO_CHAR(planned_start_date,'YY-MON') ||'-'||(TO_CHAR(planned_start_date,'RRRR') + 2000)
where planned_start_date < to_date('01-JAN-1900')
UPDATE LSU_INTER_FIX_DATE
SET actual_start_date = TO_CHAR(actual_start_date,'YY-MON') ||'-'||(TO_CHAR(actual_start_date,'RRRR') + 2000)
where actual_start_date < to_date('01-JAN-1900')
I now want to update the original base table with the corrected data so I wrote the following SQL UPDATE command:
UPDATE lsu_inter2_requests_t aaa
SET aaa.received_date = bbb.received_date
FROM LSU_INTER_FIX_DATE bbb WHERE aaa.request_id = bbb.request_id
When I run this sql Oracle returns the error “ORA-00933 SQL command not properly ended.” How do I update multiple rows in one table from another table that share the same primary key?I am not convinced you have what you think you have
>
UPDATE LSU_INTER_FIX_DATE
SET received_date = TO_CHAR(received_date,'YY-MON') ||'-'||(TO_CHAR(received_date,'RRRR') + 2000)
where received_date < to_date('01-JAN-1900')
When you want to produce a DATE datatype when starting with a string,
you must use TO_DATE() on the SET line!
(TO_CHAR(received_date,'RRRR') + 2000)since when do you do add characters (from TO_CHAR) with a constant number (2000)?
You should NEVER EVER rely on implicit datatype conversion
Edited by: sb92075 on Jul 27, 2011 7:09 PM

Getting error while creating table from one database to other.

Hi,
We are getting below error while creating the table from one database to other.
SQL> create table fnd_lobs parallel compress as select * from [email protected];
create table fnd_lobs parallel compress as select * from [email protected]
ERROR at line 1:
ORA-01555: snapshot too old: rollback segment number 28 with name "_SYSSMU28$"
too small
ORA-02063: preceding line from EEXIT2TEST
ORA-01555: snapshot too old: rollback segment number 28 with name "_SYSSMU28$"
too small
ORA-02063: preceding line from EEXIT2TEST
ORA-01555: snapshot too old: rollback segment number 28 with name "_SYSSMU28$"
too small
ORA-02063: preceding line from EEXIT2TEST
ORA-01555: snapshot too old: rollback segment number 28 with name "_SYSSMU28$"
too small
Regards,
Bhatia

hi
what are the apps version local and remote database???
Snapshot too old errors occur because Oracle can 't reconstruct a consistent
image of a block for the purposes of a consistent read.
I feel at remote database, you are using UNDO, it will be rather easy to iincrease the undo retention time or increase the undo tablespace size.. if you are dealing with roll back segments, you may have rollback segments whose optimal values are too small...
increase roll back segments size and select again then
the following metalink notes might be helpful
ORA-01555 "Snapshot too old" - Detailed Explanation Doc ID: 40689.1
How To Avoid ORA-01555: Snapshot Too Old When Running PAAPIMP Doc ID: 603259.1
OERR: ORA 1555 "snapshot too old (rollback segment too small)" Doc ID: 18954.1

I can't create table from another table?

Hi everyone!
I have a problem that I don't known the reason why?
I'm using Oracle version 8i and I want to create a table from another table, such as:
     CREATE TABLE a_backup as SELECT * FROM a => It's OK, table a_backup is created.
But there is only a table that I can't created like that, such as:
     CREATE TABLE b_backup AS SELECT * FROM b;
When I run over command, SQL Plus is not responding... and clients are can't access to DB or Executing forever
This is the first time I met this problem.
Can Anyone help me to resolved it?
Thanks in advance!

xi`tin wrote:
Hi everyone!
I have a problem that I don't known the reason why?
I'm using Oracle version 8i and I want to create a table from another table, such as:You realize, of course, that 8i is completely out of support .... Is your OS and hardware just as old as your rdbms software, or is it only the rdbms that your company refuses to upgrade?
     CREATE TABLE a_backup as SELECT * FROM a => It's OK, table a_backup is created.
But there is only a table that I can't created like that, such as:
     CREATE TABLE b_backup AS SELECT * FROM b;
When I run over command, SQL Plus is not responding... and clients are can't access to DB or Executing forever
This is the first time I met this problem.
Can Anyone help me to resolved it?
Thanks in advance!

Select table from another database

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