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04.26.2005 at 11:29AM PDT, ID: 21403203
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7.8

TOAD implementation

Asked by randyd in Oracle 3rd Party Tools

Tags: ,

Hey experts!

I have a general question - IF your Oracle (9.2 or 10g) database has say, a terabyte of data in a single table, and you say select * from that table;  TOAD somehow manages to return the first rows of the query, and let you page through the rest...

If you drag the scroll bar to the bottom, you will wait a long time..  then finally see the last screen full of records...

The question is: how is this accomplished?  It seems that all the results are not returned to the client, but instead are kept on the server...  I'm thinking as a snapshot(?).  If this is true, how do you page through a snapshot result set?  any ideas?

alternately, what is the best way to not kill your app with out of memory errors on absurdely large result sets?

thanks for comments.Start Free Trial
[+][-]04.26.2005 at 10:43PM PDT, ID: 13873360

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[+][-]05.22.2005 at 08:59AM PDT, ID: 14055525

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Zone: Oracle 3rd Party Tools
Tags: toad, first_rows
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Solution Provided By: JohnRBailey
Participating Experts: 2
Solution Grade: A
 
 
[+][-]06.12.2005 at 11:10PM PDT, ID: 14200072

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[+][-]06.13.2005 at 05:46AM PDT, ID: 14201741

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