Kamis, 06 Oktober 2016

Re: [MS_AccessPros] What the meaning of

 

One of the parameters is to set up an optional filter string (Criteria).  Apparently the code uses the string regardless of whether an overriding value was provided or not.  Using 1=1 in a WHERE clause returns a True value for all rows because 1 does equal 1.


John Viescas, Author
Effective SQL
SQL Queries for Mere Mortals 
Microsoft Access 2010 Inside Out
Microsoft Access 2007 Inside Out
Microsoft Access 2003 Inside Out
Building Microsoft Access Applications 
(Paris, France)




On Oct 5, 2016, at 11:42 PM, youssef2309@gmail.com [MS_Access_Professionals] <MS_Access_Professionals@yahoogroups.com> wrote:



the b/m code is part of sample database northwind code
I need to know what is the meaning of "1=1"







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Posted by: John Viescas <johnv@msn.com>
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