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IMS DC options like MODIFY= YES,EXPRESS=YES

 
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Mervyn_das

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Joined: 03 Mar 2009
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Location: Bangalore

PostPosted: Tue May 26, 2009 12:01 pm    Post subject: IMS DC options like MODIFY= YES,EXPRESS=YES
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Hi,

In IMS DC while defining the PCB for online program, we give the options like MODIFY= YES,EXPRESS=YES.
I would like to know what this options are used for and how the effect online if not used properly.


I would also like to ask, how would you differentiate IMS DB and IMS DC interms of defining the PCB and what is MOD-PCB.

Thanks,
Mervyn.
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Anuj Dhawan

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Joined: 22 Apr 2006
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Location: Mumbai, India

PostPosted: Tue May 26, 2009 2:49 pm    Post subject: Re: IMS DC*
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Mervyn_das wrote:
I would also like to ask, how would you differentiate IMS DB and IMS DC interms of defining the PCB
In IMS DB Batch program you need Database PSB.
In IMS DC Online program you need atleast Online PSB.

Online PSB is for IMS MPP programs.

PCB TYPE=TP -> Transaction Type which is ONLINE.

Please browse through the manuals.
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Anuj Dhawan

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PostPosted: Tue May 26, 2009 3:31 pm    Post subject:
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Quote:
In IMS DC while defining the PCB for online program, we give the options like MODIFY= YES,EXPRESS=YES.
I would like to know what this options are used for and how the effect online if not used properly.
You may want to code a program that can send messages to a destination other than the originating terminal. You may want to include logic that will let the program send a message to a different terminal or to another program. You can do this through the use of an alternate PCB that you define in the application program's PSB. You can also make the alternate PCB modifiable, so that logic within the program can decide where to send the message. Make the PCB modifiable by including a MODIFY=YES parameter in the PCB statement.
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Anuj Dhawan

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PostPosted: Tue May 26, 2009 3:34 pm    Post subject:
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And 'EXPRESS=' Specifies whether messages from this alternate PCB are to be sent (YES) or are to be backed out (NO) if the application program should abend.

Just browse through the manuals-- these things are explained very wel there.
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Mervyn_das

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PostPosted: Tue May 26, 2009 8:40 pm    Post subject: Reply to: IMS DC options like MODIFY= YES,EXPRESS=YES
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Thanks Anuj for you reply, it was very helpful....I would like one more favour...you were talking some manual. Could please tell which manual you are talking about.

Thanks Again,
Mervyn.
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dick scherrer

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Joined: 23 Nov 2006
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PostPosted: Tue May 26, 2009 10:01 pm    Post subject:
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Hello,

At the top of the page is a link to "IBM Manuals". Among the database manuals are some IMS publications.

Also, at the top of the IMS part of the forum are several "Sticky" entries that link to IMS material.
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Anuj Dhawan

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PostPosted: Wed May 27, 2009 11:05 am    Post subject:
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You're welcome Mervyn... icon_smile.gif

Please spend some time to find out the correct manual for your question as per the suggestion from Dick -- you'll find, probably, a lot more. Getting familiar with Manuals saves a lot of time, usually . . .
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