From: "Greg Wilburn" <gwilburn@xxxxxxxxxxxxxxxxxxxxxxx><midrange-l@xxxxxxxxxxxxxxxxxx>,
To: "Midrange Systems Technical Discussion"
Date: 12/01/2021 03:25 PMsiA1ZOg&r=oCmVbiwufH6yM8U29GriOcB5LKDoEG8y1HZD-01RVtc&m=WBKqmJteet6e501ZLxcZk-
Subject: [EXTERNAL] SQL View vs CTE
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>
I have a complex SQL statement that I'm going to use as a data
source for a browser application. In ACS Run SQL scripts it
consistently takes about 22 seconds to run. The statement contains
a CTE followed by a join to the CTE. The files involved have a
large number of records.
So I'm wondering if someone can tell me whether creating an SQL View
in place of the CTE would yield any performance increase (I haven't
spent much time looking at the Visual Explain in ACS).
I'm thinking it wouldn't make much difference.
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Greg WilburnDirector of IT
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