Hi Rob

I don't use 1 = 1 in SELECTs but I do if I want to delete all records from a table - sometimes CLRPFM is not allowed - we have that in some circumstances on our systems - and a bare-naked DELETE FROM uses CLRPFM on IBM i. The WHERE 1 = 1 does not use CLRPFM. And I don't know the history for suppressing CLRPFM here.


On 11/15/2021 10:10 AM, Rob Berendt wrote:
I fail to understand why all the WHERE conditions.
1=1??? Is this just a thing you always do to avoid warning errors that you have no where clause?

And why
... and substr(table_Schema,1,1) not in ('Q', '#')
When you have
and table_schema = 'DPPDATA'
D already excludes Q and #.
Let me guess your evolution.
First, I was right on the evolution on the 1=1, right?
Second, you started by specifying Q and # to only get "user" libraries?
Third, then you added just the library you wanted?

Rob Berendt

As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2022 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.