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That's probably it. It does return a large percentage of rows.
Thanks
-----Original Message-----
From: Birgitta Hauser [mailto:Hauser@xxxxxxxxxxxxxxx]
Sent: Wednesday, January 08, 2020 11:00 AM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: Why Table Scan?
A table scan is quite often performed if more than 15-20% of the rows of a table is returned (and there is no appropriate EVI).
<> and OR let expect that more than 15-20% of the rows are returned
Mit freundlichen Grüßen / Best regards
Birgitta Hauser
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