Export Data in 1.1 to XLS very slow

I'm currently running with Oracle 10g. I have been having a problem running Lengthy SQL and trying to export to XLS. It appears to lock with I select Export Data --> XLS and after letting run for a long time eventually it will return with the Browse window and then when I select the file location it will again take a long time before it returns again. Is there still multiple selects re-occur in 1.1 as the prior versions? Or is there a setup parameter that I can set to improve performance?
Any assistance would be greatly appreciated.

This is an issue with the way the export from SQL Developer works - it doesn't matter which format you are exporting to. SQL Developer executes the query multiple times when exporting.
On top of the initial query, it appears to execute the query again before displaying the dialog (for the columns and maybe sample data for the where tab?) and then again to actual export the query (in case you have added conditions on the export where tab).
Try switching on tracing with a quick statement, run it and then export it. You need to look for the "select * from ( select columns from ( <your query> ) )" selects that are generated by the export).
With long running queries, I find that it is far quicker to query all the rows and then do a select all, copy and then paste into the spreadsheet. Unfortunately, you don't get column headings with this, but if your query takes 10 minutes to run, you save yourself 20 minutes to manually add the headings.
This has been a problem since 1.0 (see More export issues/bugs but at least 1.1 has reduced the number of additional queries - there was an extra query on export in 1.0.
Note that export also still fails with an ORA-972 on exporting a query like "select 'testing query execution on export' from dual" as part of this multiple execution on export.

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Here I go again. I read the post <b>Looking for example to export data from a DynPro table to Excel file</b> and put the code lines into a Web Dynpro Project where we need to export a dynpro table to Excel file but exactly at line 23 it doesn't recognize <b>workBook = new HSSFWorkbook();</b>
1     //Declare this in the end between the Begin others block.
2
3     private FileOutputStream out = null;
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[code]
java.lang.NoClassDefFoundError: org/apache/poi/hssf/usermodel/HSSFWorkbook
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     at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)
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     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:159)
Thanks in advance!!!
Tokio Franco Chang
[/code]

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Export Data in 1.1 to XLS very slow

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