Access Rows In Oracle

Jun 8, 2008

Is there a way to access a particular row of a column in sql

lets say we have a table

A | B| C|
---------
1 | 2 | 3
3 | 5 | 6

And we want to access the 5 in column B. Is there a way to do that?

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we recently got a scenario that we need to get the data from oracle tables which is installed on third party servers. we have sqlserver installed on ourservers. so they have created a DBLINK in oracle server to our sqlserver and published the DBLINK name.

what are the next steps that i need to follow on my sqlserver in order to access the oracle tables ?

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Access Connection

create a new Connection Manager by right-clicking in the Connection Managers section of the design area of the screen. Select New OLE DB Connection to bring up the Configure OLE DB Connection Manager dialog box. Click New to open the Connection Manager. In the Provider drop-down list, choose the Microsoft Jet 4.0 OLE DB Provider and click OK.
Browse to the Access database file and connection set up---all good!!!

Dataflow task
Add an OLE DB Source component
Double-click the icon to open the OLE DB Source Editor. Set the OLE DB Connection Manager property to the Connection Manager that I created . Select Table from the Data Access Mode drop-down list.
I cannot see the tables set up as set up as pass-through table types to a Oracle 9i db

Any ideas please help

thanks in advance
Dave

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Both the Access and SQL Server tables have the same number of columns and the equivalent data types, so inserting is not really the problem.  It's just that is there a way to do an insert statement in T-SQL that does not name all the columns?

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Nov 18, 2007



hi everyone ,How are you all?
i'm working on sql DTS to transfer data from oracle to MS SQL2000 i did the transfer but i need to delete transfered data from oracle in DTS How i could do that?

regards,
Firas azzi

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Does anyone know if I can have a MS Access project with Oracle backend ?
I know it's a breeze with MS SQL backend !

Thanks in advance !

Ivan

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Dec 18, 2007

Hi all,

SQL Server 2005 SP2
Windows XP Pro SP2
Oracle 10g Client 10.2
Oracle Data Access Components 10.2 VB6
Oracle Rdb 7.1 (not Oracle RDBMS).

I trying to access a remote Oracle Rdb database via a linked server in SQL Server 2005 management studio but having no luck. The remote database is accessed via an Oracle alias in TNSNAMES.ORA called my_oledb (see below) and I know it works ok becuase I'm able to access the remote database via VB6 (ADODB) using a very simple app whose connection string looks like this...



con.ConnectionString = "Provider=OraOLEDB.Oracle.1;User ID=someusername;

Password=topsecret;Data Source=my_oledb"



I got this example VB appication off the net but have to admit I'm not sure of the difference between

OraOLEDB.Oracle.1 & OraOLEDB.Oracle.



The alias in TNSNAMES looks like this...



my_oledb =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (Host = spike) (Port = 1527))
)
(CONNECT_DATA = (SERVICE_NAME = oci_oledb)
)
)



I can also TNSPING this alias without any probems.



My SQL server linked server is setup as follows.



exec sp_addlinkedserver
@server = 'MFP2',
@srvproduct='Oracle',
@provider = 'OraOLEDB.Oracle.1',
@datasrc = 'my_oledb'


exec sp_addlinkedsrvlogin
@rmtsrvname='MFP2',
@useself='false',
@locallogin='sa',
@rmtuser='******',
@rmtpassword='******'



Using both openquery and four part naming (?) I get the following errors


select job_title from mfp2...jobs

OLE DB provider "OraOLEDB.Oracle.1" for linked server "mfp2" returned message "ORA-01017: invalid username/password; logon denied".

Msg 7303, Level 16, State 1, Line 1

Cannot initialize the data source object of OLE DB provider "OraOLEDB.Oracle.1" for linked server "mfp2".



There are no schemas in the Oracle database so I've just used three dots between the linked server and the table name.

Again I know this syntax works becuase I have used it sucessfully with ODBC drivers.



select * from openquery(mfp2,'select * from jobs')

OLE DB provider "OraOLEDB.Oracle.1" for linked server "mfp2" returned message "ORA-01017: invalid username/password; logon denied".

Msg 7303, Level 16, State 1, Line 1

Cannot initialize the data source object of OLE DB provider "OraOLEDB.Oracle.1" for linked server "mfp2".



The passwrods are correct on the Oracle database as these are the ones used in the VB6 application.



Trying to expand the catalogue also causes management studio to hang.



Anyone spot the obvious mistake?



I did read on the net a while ago that registry entries might be rquired on the PC/server, is this still necessary?



Thanks in advance



Dave

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Feb 4, 2008

Hi all,


I have been reading some topics on "slow Oracle connections", but I have not found an answer for my question yet.


The problem is that I am extracting data from a Oracle database to Raw files (to import into our DWH later on).
For one table this takes more that 1 hour! I find this to be very slow, but maybe I am expecting too much speed?


Can anyone tell me how long it should take to download 10 million rows from Oracle to Raw file (no transformations)?


Some extra information:
- The table has 10 million rows and a little over 200 columns
- The datatypes in the Oracle database are varchar, number and date
- I tried to tune the buffer size in the data flow and found that I could fit about 1900 rows in a DefaultBuffersize of 100 MB
- I use the "Native OLE DBMicrosoft OLE OB Provider for Oracle" (Provider=MSDAORA.1)


Can I do anything to get a better performance or is 1 hour for a table like this the best performance we can get?

(Changing the Oracle database is unfortunately not an option...)


Thanks and regards,


Ellen

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Hi,

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hello

we suppose to link the form in MS Access with Oracle

can anyone tell me how to write the code for these buttons

i tried to write as I learned in VB.NET,
But it seems doesn't work :(

http://www3.speedyshare.com/data/191404757/10803567/78224332/db2.jpg

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Hi All

My manager told me to link SQL Server database tables to access so that he can access the tables in MSAccess to do his SQL queries.
I am thinking of linking server but I am not sure about that.
Is someone can tell me what to do and explain me how.
Thanks in advance
Sincerely.
David

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I am unable to acces Oracle from legacy DTS designer, here is what I have done,

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2. Now I am unable to access oracle; it gives provider error
3. I am able to connect oracle from SQLPLUS

How can I troubleshoot this problem?

------------------------
I think, therefore I am - Rene Descartes

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The server log has the following entry in exception.txt:

Exception 0xc0000005 EXCEPTION_ACCESS_VIOLATION reading address 00000005031C07E0 at 0x0000000070F9C183
There is also a SQLDump file generated:
* BEGIN STACK DUMP:
*   10/28/15 12:45:38 spid 63
*   Exception Address = 000000005040C183 Module(MSVCR100+000000000003C183)

[code]....

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Hi there,

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Thanks.

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IDFNLN
1x
1y
2a
2b
3g
4t

I want output as shown below.
  
IDFNLN
1xy
2ab
3g
4t

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Here's the code:

CREATE TABLE #FileSystem (
FSIDINTEGER NOT NULL IDENTITY(1,1) PRIMARY KEY
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,NameVARCHAR(100)
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[Code] ....

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Thanks.

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Hi!



I'm loading from Oracle using the OraOLEDB.Oracle.1 provider since I need unicode support and I get the following error:



TITLE: Microsoft Visual Studio
------------------------------

Error at myTask [DTS.Pipeline]: The "output column "myColumn" (9134)" has a precision that is not valid. The precision must be between 1 and 38.



------------------------------
ADDITIONAL INFORMATION:

Exception from HRESULT: 0xC0204018 (Microsoft.SqlServer.DTSPipelineWrap)

------------------------------
BUTTONS:

OK
------------------------------
For most of my queries to Oracle I can cast the columns to get rid of the error (CAST x AS DECIMAL(10) etc), but this does not work for:



1) Union

I have a select like "SELECT NVL(myColumn, 0) .... FROM myTable UNION SELECT 0 AS myColumn, .... FROM DUAL"

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2) SQL command from variable

The select basically looks like this:

"SELECT Column1, Column2, ... FROM myTable WHERE Updated BETWEEN User::LastLoad AND User::CurrentLoad"

Again, even if I cast all columns (like in the union), I still get the same error.



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I use one or the other according to my needs.

In anticipation and to prepare for the build of a new production server, I have build a test server from scratch and deployed to it the entire dev.

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ssis packages on the test machine will return an error

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Error at Pull Calendar from One [DTS.Pipeline]: component "OLE DB Source" (1) failed validation and returned error code 0xC020801C.

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An OLE DB record is available. Source: "Microsoft OLE DB Provider for Oracle" Hresult: 0x80004005 Description: "Oracle error occurred, but error message could not be retrieved from Oracle.".

I have used the same installers for OS, SQL and Oracle SQL*Net on both dev and test machines. The install and then the restore/deployment on Test went fine.

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Hi,

I am trying to make an oracle publiching from sql server 2005 enterprise final release, i installed the oracle client  10.2 (10g) on the same server where sql server already installed, i made different connection to oracle database instance and it was  ok.

 

from sql server : right click on publication -New oracle publication-Next-Add Oracle Publisher-Add button-Add Oracle Publisher-i entered server insttance test1 and their users and passwords--connect --->

the oracle publisher is displayed in the list of publisher but when press ok i got the following error :

TITLE: Distributor Properties
------------------------------

An error occurred applying the changes to the Distributor.

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=9.00.1399.06&EvtSrc=Microsoft.SqlServer.Management.UI.DistributorPropertiesErrorSR&EvtID=ErrorApplyingDistributor&LinkId=20476

------------------------------
ADDITIONAL INFORMATION:

SQL Server could not enable 'test1' as a Publisher. (Microsoft.SqlServer.ConnectionInfo)

------------------------------

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

------------------------------

The permissions associated with the administrator login for Oracle publisher 'test1' are not sufficient.
Changed database context to 'master'. (Microsoft SQL Server, Error: 21684)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.1399&EvtSrc=MSSQLServer&EvtID=21684&LinkId=20476

------------------------------
BUTTONS:

OK
------------------------------


Any idea about this error ?

Thanks

Tarek Ghazali
SQL Server MVP.


 

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