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Asked: 2026-05-15T17:07:51+00:00

Hi I am trying to connect Oracle 10g(Source/Target) from ssis using connection string as

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Hi I am trying to connect Oracle 10g(Source/Target) from ssis
using connection string as
Data Source=Qrgo;User ID=sy;password=sa;Provider=MSDAORA.1;
Qrgo is Servicename

getting error
Test connection failed because of an error in initializing provider. ORA-12520: TNS:listener could not find available handler for requested type of server

Please advise how to resolve this. Thanks

I have tried

1.tnsping

it is successful

2.Attempt a connection to the instance

Once you have proven that the tnsnames is talking to the listener properly, the next step is to attempt a full connection to the instance. To do this we.ll use sqlplus:

sqlplus [username]/[password]@
it is successful

but ,while trying to configure from ssis it is throughing an error

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1 Answer

  1. Editorial Team

    Error: ORA-12520

    Text: TNS:listener could not find available handler for requested type of server

    Cause: None of the known and available service handlers for requested type of server (dedicated or shared) are appropriate for the client connection.

    Action: Run “lsnrctl services” to ensure that the instance(s) have
    registered with the listener and that the appropriate handlers are accepting connections.

    Possible solution:

    http://www.shutdownabort.com/errors/ORA-12520.php

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