PROCOPT=G adn PROCOPT=A in IMS.

[Baskar Ganesan]

Hi,

When we want to browse an IMS database we code PROCOPT=G in the PCB. What would happen if we are still just browsing a database though have used PROCOPT=A. Why dont we do this?

[Anuj Dhawan]

The difference lies in locking. With procopt 'A', if you issue GN or GU calls - You may well lock out other applications that are trying to read segments in the same "physical block". OTOH, a procopt of 'G' might lock out update or delete requests but will not lock out reads.

Hope that explains what you need.

[Baskar Ganesan]

Thanks, this explains it.

[Anuj Dhawan]

Glad, we had been helpful.