FROM table @ database

In a SQL statement how can you substitute the database name for a column in a query ?

select * from table@databaselink
one time:
create public synonym syn_table for table@databaselink;
the this statement delivers the same result:
select * from syn_table;

Similar Messages

Hello Anybody, I have a question. Can any of you please suggest me how to make an xml file from the database table with all the rows? Note:- I am having the XSD Schema file and the resulted XML file should be in that XSD format only.

Hello Anybody, I have a question. Can any of you please suggest me how to make an xml file from the database table with all the records?
Note:- I am having the XSD Schema file and the resulted XML file should be in that XSD format only.

The Oracle documentation has a good overview of the options available
Generating XML Data from the Database
Without knowing your version, I just picked 11.2, so you made need to look for that chapter in the documentation for your version to find applicable information.
You can also find some information in XML DB FAQ

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.
As always, any help is greatly appreciated.
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 Copy (or) Transfer data in a BLOB Table From one database to another

Dear Members,
I want to Copy or Tranfer the data in a Table having BLOB Column from one database to another database.
The Problem is that I am using COPY Command.
COPY from scott/[email protected] to k5esk_ldb2/k5esk_ldb2@k5_ist.world CREATE BLOB_TABLE using select * from BLOB_TABLE;
This is working only if the table is not having BLOB Column or CLOB columns.
Is there any other way to do the same.
Appreciate any Help.
Regards
Madhu K

You could try using export/import utilities, but may run into tablespace issues if the tablespaces are not the same between the two databases. You can also try Data Pump using the REMAP_TABLESPACE variable if you tablespaces are different. You could also write your own export and import code...there are plenty of examples of that to copy.

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

In PL-SQL copy a table from one database to another

I am currently working on a VB app where I need a way to archive tables from the running database to an archive database. I was hoping to do this with a stored procedure. Thanks for any suggestions in advance.

AFAIAA there is no equivalent of the SQL*Plus copy command, but it is realtively simple to build such a thing in PL/SQL using DBMS_SQL or EXECUTE IMMEDIATE to issue the necesssary INSERT INTO table@archive_db select * from table;It's simple to create the table in the archive db , you just test for it's exist using %SQLFOUND.
If you want it fancier, eg. changing the tablename dynamically that's also easy.
rgds, APC

Copying Table Info From One Database to Another

I am trying to copy data from a database instance on one server to an identical database instance on another server. I have a BC4J application module that I would like to use on both servers. I am relatively new in the BC4J area and would appreciate help from those of you who have done this type of thing before. How do I set up the connections in my client code to accomplish copying the data?

Table may be copied with the
expdp and impdp utilities.
http://www.oracle.com/technology/products/database/utilities/index.html

Error while importing tables from oracle database

Hi
I am getting the following error when i am trying to import table from oracle database.
my operating system is windows and my database is oracle.
[nQSError: 16001]ODBC error state: IM004 code:0 message:
[Microsoft][ODBC Driver Manager] Driver`s SQLAllocHandle on SQL_HANDLE_ENV failed.
please help me in resolving this issue.
Thanks and Regards,
Raj

Hi Madan,
I have done migration Discoverer Admin EUL Layer into OBIEE repository using below methodology.
Navigate to the <installdrive>\OracleBI\server\Bin directory. There are two important files in this directory: the migration assistant executable file named MigrateEUL.exe and a properties configuration file named MigrationConfig.properties.
Could you please help me how to migrate discoverer plus workbooks and worksheets into OBIEE Answers?
go through below link, It will show navigation steps for migrating of EUL from Discoverer to OBIEE.But i need migration of workbooks and worksheets from Discoverer into OBIEE Answers.
http://www.oracle.com/technology/obe/obe_bi/discoverer/discoverer_1012/discomigration/migrate_disco_biee.htm
This is very great full help to me …
Advance thanks for your suggestions.
Regards
Duraga Prasad.

Extracting Values of a Field from a Database Table in SAP ECC System

Hi,
I downloaded Extracting Values of a Field from a Database Table in SAP ECC System Using MII 12.0
senario from sdn. I'm trying to do that senario in MII 12.05. But I have problem with section 6 in page 7 (you can supply senario from sdn)
"6- Under the loop of Repeater, use action u2018Rowu2019 to append just the string part of the WA which will display only values for field u2018Batchu2019"
I did not find WA elemen in Output element of Repeater_0
How can I create WA element?
Thanks.

Cemil,
Set up a SAP JCo Interface action block. Use the RFC name RFC_READ_TABLE.
In the link editor map the table to "MARA", set RowCount to something small (20 is good sample size) and create an xml transaction property named FIELDS and copy the following into it:
<?xml version="1.0" encoding="UTF-8"?><FIELDS>
      <item>
        <FIELDNAME>MATNR</FIELDNAME>
        <OFFSET/>
        <LENGTH/>
        <TYPE/>
        <FIELDTEXT/>
      </item>
      <item>
        <FIELDNAME>MTART</FIELDNAME>
        <OFFSET/>
        <LENGTH/>
        <TYPE/>
        <FIELDTEXT/>
      </item>
      <item>
        <FIELDNAME>BSTME</FIELDNAME>
        <OFFSET/>
        <LENGTH/>
        <TYPE/>
        <FIELDTEXT/>
      </item>
      <item>
        <FIELDNAME>XCHPF</FIELDNAME>
        <OFFSET/>
        <LENGTH/>
        <TYPE/>
        <FIELDTEXT/>
      </item>
      <item>
        <FIELDNAME>DATAB</FIELDNAME>
        <OFFSET/>
        <LENGTH/>
        <TYPE/>
        <FIELDTEXT/>
      </item>
    </FIELDS>
Then link the Transaction.FIELDS to SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/TABLES/FIELDS}. You may run into problems with two other fields and optionally they can be removed (set link type to remove xml). I usually remove them initially for testing. The two fields are:
SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/INPUT/NO_DATA}
SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/INPUT/DELIMITER} (or you can set this to something like a semicolon,";" or tilda,"~". I find it easier to caclulate position by length, but that is my own idiosyncrasy.)
Once you get this one working, we can explore how to do filtering on the dataset. Your output should be something like this:
<?xml version="1.0" encoding="utf-8"?>
<RFC_READ_TABLE>
<INPUT>
    <DELIMITER />
    <NO_DATA />
    <QUERY_TABLE>MARA</QUERY_TABLE>
    <ROWCOUNT>20</ROWCOUNT>
    <ROWSKIPS>0</ROWSKIPS>
</INPUT>
<TABLES>
    <DATA>
      <item>
        <WA>000000000000000023ROH 00000000</WA>
      </item>
      <item>
        <WA>000000000000000038HALB 00000000</WA>
      </item>
      <item>
        <WA>000000000000000043HAWA 00000000</WA>
      </item>
      <item>
        <WA>000000000000000058HIBE 00000000</WA>
      </item>
      <item>
        <WA>000000000000000059HIBE 00000000</WA>
      </item>
      <item>
        <WA>000000000000000068FHMI 00000000</WA>
      </item>
      <item>
        <WA>000000000000000078DIEN 00000000</WA>
      </item>
      <item>
        <WA>000000000000000088FERT 00000000</WA>
      </item>
      <item>
        <WA>000000000000000089FERT 00000000</WA>
      </item>
      <item>
        <WA>000000000000000098HALB 00000000</WA>
      </item>
      <item>
        <WA>000000000000000170NLAG 00000000</WA>
      </item>
      <item>
        <WA>000000000000000178NLAG 00000000</WA>
      </item>
      <item>
        <WA>000000000000000188NLAG 00000000</WA>
      </item>
      <item>
        <WA>000000000000000288HALB 00000000</WA>
      </item>
      <item>
        <WA>000000000000000358HAWA 00000000</WA>
      </item>
      <item>
        <WA>000000000000000359HAWA 00000000</WA>
      </item>
      <item>
        <WA>000000000000000521HAWA 00000000</WA>
      </item>
      <item>
        <WA>000000000000000578FERT 00000000</WA>
      </item>
      <item>
        <WA>000000000000000597HAWA 00000000</WA>
      </item>
      <item>
        <WA>000000000000000598VERP 00000000</WA>
      </item>
    </DATA>
    <FIELDS>
      <item>
        <FIELDNAME>MATNR</FIELDNAME>
        <OFFSET>000000</OFFSET>
        <LENGTH>000018</LENGTH>
        <TYPE>C</TYPE>
        <FIELDTEXT>Material Number</FIELDTEXT>
      </item>
      <item>
        <FIELDNAME>MTART</FIELDNAME>
        <OFFSET>000018</OFFSET>
        <LENGTH>000004</LENGTH>
        <TYPE>C</TYPE>
        <FIELDTEXT>Material Type</FIELDTEXT>
      </item>
      <item>
        <FIELDNAME>BSTME</FIELDNAME>
        <OFFSET>000022</OFFSET>
        <LENGTH>000003</LENGTH>
        <TYPE>C</TYPE>
        <FIELDTEXT>Purchase Order Unit of Measure</FIELDTEXT>
      </item>
      <item>
        <FIELDNAME>XCHPF</FIELDNAME>
        <OFFSET>000025</OFFSET>
        <LENGTH>000001</LENGTH>
        <TYPE>C</TYPE>
        <FIELDTEXT>Batch management requirement indicator</FIELDTEXT>
      </item>
      <item>
        <FIELDNAME>DATAB</FIELDNAME>
        <OFFSET>000026</OFFSET>
        <LENGTH>000008</LENGTH>
        <TYPE>D</TYPE>
        <FIELDTEXT>Valid-From Date</FIELDTEXT>
      </item>
    </FIELDS>
    <OPTIONS />
</TABLES>
</RFC_READ_TABLE>
Add a repeater sourced on:
SAP_JCo_Interface_0.Response{/RFC_READ_TABLE/TABLES/DATA/item}
Link your repeater output to a tracer with this:
Repeater_0.Output{/item/WA}
What you will see in each tracer message is a single line of data with all the fields contents concatenated together. You can look up what each field in the string represents by the length of the field as returned in the Response segment of the RFC_READ_TABLE rfc. Then you can parse out the data you are interested in.
Give this a try and let me know how you succeeded.
By the way, I could not find the scenario you referred to. Can you post a link?
Regards,
Mike
Edited by: Michael Appleby on Jan 12, 2009 5:16 PM

What's the best way to create XML file with a schema from a database table?

Hi,
I want to create an XML file from a database table (which has over 600 columns) using XML schema (.xsd file). I want to know the best way to do this.
The output XML file is NOT a direct data dump from the DB table, there�re some logic around it, such as the XML file has some hierarchy with repeating tags.
I have done this using JAXB by creating Java classes form XML schema, but I don�t want to map 600 DB columns to these Java classes manually, and loop through the record set to create repeating tags.
I know there are few tools around now like MapForce (Altova), how do people do these now?
Thanks,
Chandi

Can you use a schema when we compose XML doc from Database tables?
Actually, I'm using SQL Server (sorry, wrong forum). But, I thought a Java tool would have a solution for me.

Simple: How to copy a Table from one Database to another?

I already know how to do it by creating an identical table and then inserting the Data.
Like so:
SET IDENTITY_INSERT dByDtMinusC5 ON
INSERT INTO [DB1]..T1 ([Id], [HbyD] , [K] )
SELECT [Id], [[HbyD]]] ,[K] FROM [DB2]..T2
As you can see I need to have T1 in order to copy T2 into DB1. Is there any way that I could auto create T1 and copy T2?
There are so many forums in sql server Category, I hope I posted in the right one :0 . We need tag system for forums.

Hi Bhupinder,
According to your description, you want to copy a table with Primary keys from one database to another database.
As per my understanding, I think the best method is use Transfer SQL Server Objects Task in SQL Server Integration Services. The Transfer SQL Server Objects task transfers one or more types of objects in a SQL Server database between instances of SQL Server.
Server roles, roles, and users from the specified database can be copied, as well as the permissions for the transferred objects. Indexes, Triggers, Full-text indexes, Primary keys, Foreign keys can also be copied.
To use the Transfer SQL Server Objects Task, we should create a SQL Server Integration Services Project in SQL Server Data Tools, then drag a Transfer SQL Server Objects Task to Control Flow pane. Specify SourceConnection, SourceDatabase, DestinationConnection
and DestinationDatabase for the Connection, select the table in the ObjectsToCopy category, then change CopyPrimaryKeys to True and the other corresponding properties in the task.
References:
Transfer SQL Server Objects Task
Transfer SQL Server Objects Task in SSIS 2008 R2 With Example
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

Generating an Entity Bean from a Database Table

I am following the tutorial "How Do I: Generate an Entity Bean from a Database
Table?" and in that process doing the "Configuring a Data Source". This is the
message I get when I configure a data source per the tutorial and click OK. This
data source exists and the information is correct that I have supplied.
Do I need to put the MS jars somewhere to enable this?
See attached file

I've just figured it out. An input source also takes a Reader in its constructor. I was thinking that it only took an InputStream, and as the Serializer requires you to set a Writer on it, I was finding it impossible to convert between bytes and chars. Now, I have simply set a blank CharArrayWriter on the Serializer, got a char[] from it once the Serializer has written the Document to the stream, and then constructed a CharArrayReader with this char[]. It works fine now. Not that anyone read the problem anyway cos I solved it a few minutes after I posted it. Considering it first cropped up about 4 months ago and it has been niggling ever since, I am pleased!

How to copy a set of tables from a database to another periodically?

We have a 4 node RAC primary database(10.2.0.2) with a physical standby(10.2.0.2) on our production site. Offlate we noticed that one of the applications(APP2) is causing heavy loads due large data downloads on the primary database servers. Our primary database has 2 schemas,
1) one being the main schema with all objects, (USER1)
2) and the other has views that query some set of tables from the main schema. (USER2)
The application APP2 uses USER2 views to query and download huge data periodically. We need to be able to give accurate data results to APP2, but in the same time take off the load from the database, as APP2 is not our main application.
We would like to know if there are any cost effective options in oracle to do this, and if so, what is the best option? Anyone has any experience setting up something like this before?
We have thought of creating another 10.2.0.2 database on a different server and giving it regular updates(like data feeds) from the current database. The current database data changes quiet often, so the data feeds would have to be done often to keep the data current on the new database. So, we are not exactly sure how to go about it. Would a COPY command help?
Please advice.

user623066 wrote:
Our 4 node RAC is already busy with our main application, which has its connections spread across all 4 nodes.
Our main applications services are the same on all nodes and use all 4 nodes in the same way.
There are some other utilities that we run from one of the app servers that connect to only 1 of the nodes.
APP2 uses all 4 servers, which is again controlled by connection pooling and distributes the load.Wouldn't separate services be more beneficial here? If APP2 is locked down to one node during normal operation, that ensures that other connections aren't going to be competing for hardware with APP2 on 3 of the 4 nodes. If APP2 is generating less than 25% of the total load, you can let the other applications use whatever hardware resources are left idle on the node APP2 is locked down to.
By Large data downloads, I meant both increase in network traffic and the CPU load on the database nodes.
We are already using resouce manager to limit the resources allocated to USER2 that APP2 uses.
And we have also limited the large downloads to take place in the early hours of the day when the traffic from our main application is less.
But this has still not been optimal for the usage requirements for APP2. APP2 is also doing queries all through the day, but has a limit for the number of rows downloaded during peak hours.Can you explain a bit more about why using Resource Manager hasn't been sufficient? That's normally a pretty good way to prevent one hungry user from drastically affecting everyone else. Perhaps you just need to tweak the configuration here.
Logical Standby seems a good option. But we need to keep our physical standby in place. Is it possible to have a logical standby and a physical standby? (ofcourse on separate servers)Sure. You can have as many standby servers of whatever type you'd like.
Could we use a COPY command to copy data for the set of tables to a new database? Or is that also a complex option?You could, yes. COPY is a SQL*Plus command that has been depricated for copying data between Oracle databases for quite a while. It only works from SQL*Plus and would only be designed for one-time operations (i.e. there is no incremental COPY command). I can just about guarantee that's not what you want here.
How do materialized views work? Wouldn't they still reside on the main database? Or is it possible to have remote materialized views?You probably don't want materialized views, but if you decide to go down that path
- You'd create materialized view logs on the base tables to track changes
- You'd create materialized views on the destination database that select data over a database link back to the source database
- You'd put those materialized views into one or more refresh groups that are scheduled to refresh periodically
- During a refresh, assuming incremental refreshes, the materialized view logs would be read and applied to the materialized views on the destination system to update the materialized views.
Justin

Replicate some tables from local database server to Remote database sever

how can i replicate some tables from local database server(Oracle 8.1.7 on windows 2000 server) to a remote database server(Oracle 8.1.7 on Sun Solaris)
whenever there is some insertion or updation on the table of base(main) database it should get updated to the remote database server
or
on time base for example: every 2 hours
please help me!!!!

It all depends on waht you are going to do with the data on the remote.
if tehre are no updates there, creating a simple materialized view on the remote to pull it's data from the local should suffice.
If there are updates on the remote, you will more than likely want to look into either Multi-master replication, or updatable materialized views.

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.

FROM table @ database

Similar Messages

Maybe you are looking for