On Tue, 22 May 2007 13:17:16 -0500, Scott Fagen wrote: >>> >>> ... If the ENQ is exclusive for the first step and >>>shared for the second, it will be changed by the initiator/terminator >>>between steps. >>> >>Nope. >> >>Wishful thinking. >> >>But why not? > >ENQ RET=CHNG only supports 'upgrade' from SHR to EXC, not 'downgrade' from >EXC to SHR. ... > That answers nothing; it's the impatient parent telling the curious child, "Because!" The question remains, "But why not?"
See Robert Rosenberg's recent well-reasoned contribution on this topic: Linkname: Re: Why is there JOB scope for DSN ENQ's anyway? URL: http://bama.ua.edu/cgi-bin/wa?A2=ind0705&L=ibm-main&P=195906 -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html