<div>
no matter you are executing query from linked server or directly from oracle server, Index is going to be used I guess. Network may be culprit in your case.
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no matter you are executing query from linked server or directly from oracle server, Index is going to be used I guess. Network may be culprit in your case.

<div>
the network isnt the culpirt!!!!!
</div>


<div>
I looked with the oracle analyser and saw that sql made a full table scan!
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I looked with the oracle analyser and saw that sql made a full table scan!

<div>
See if the attached webpage helps. Seems like there is a bug.<br />
Please change the extension to .htm after you have downloaded the file.<br />
P.<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2009/07_w29/160847/How-Improve-Linked-Server-Perfro.txt" target="_blank" class="file-inline" title="Linked Server (162 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>How-Improve-Linked-Server-Perfro.txt</a>
</div>


See if the attached webpage helps. Seems like there is a bug.
Please change the extension to .htm after you have downloaded the file.
P.

How-Improve-Linked-Server-Perfro.txt [https://filedb.experts-exchange.com/incoming/2009/07_w29/160847/How-Improve-Linked-Server-Perfro.txt]

How-Improve-Linked-Server-Perfro.txt

<div>
Hi ALSO_DB,<br />
how are you doing<br />
try check the following in the Linked server setup for Oracle Provider for OLE DB<br />
&quot;Dynamic Parameters&quot; <br />
&quot;Allow InProcess&quot; <br />
thanks
</div>


Hi ALSO_DB,
how are you doing
try check the following in the Linked server setup for Oracle Provider for OLE DB
"Dynamic Parameters"
"Allow InProcess"
thanks

<div>
Dear mSharfi<br />
<br />
&quot;Dynamic Parameters&quot; and &quot;Allow InProcess&quot; activated, but still slow like a snake...
</div>


Dear mSharfi

"Dynamic Parameters" and "Allow InProcess" activated, but still slow like a snake...

<div>
<div class="content wysiwyg-content">
I have in my SQL environment a &nbsp;linked Oracle Server.<br />
<br />
If I run a query against my linked Oracle Server the query doesn't use the Oracle Indexes. So the duration of the query tooks very long. On the Oracle server direct the Query took only seconds.<br />
<br />
How could I made the right setup?<br />
<br />

</div>
</div>


I have in my SQL environment a  linked Oracle Server.

If I run a query against my linked Oracle Server the query doesn't use the Oracle Indexes. So the duration of the query tooks very long. On the Oracle server direct the Query took only seconds.

How could I made the right setup?



SQL Server Linked Oracle Server

Microsoft SQL Server 2005 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. It includes support for managing XML data and allows a database server to be exposed over web services using Tabular Data Stream (TDS) packets encapsulated within SOAP (protocol) requests.

Microsoft SQL Server 2005

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.