The attribute only appears in the output of the SHOW_ALL_ATTRIBUTES command if you have explicitly assigned a value to it using the
SET_ATTRIBUTE command. The default setting is not displayed
The PROC_VER_NUM_INSTANCES attribute applies to all old instances of a procedure. Each procedure instance is allocated an instance identifier. Each time a new instance is created the instance identifier is incremented by one.
The first time you set the attribute you can run the swadm tidy_instances command to force a tidy operation to tidy up the number of instances of some or all of your procedures, depending on your requirements. To do this you need to run the
swadm tidy_instances command. See
Tidy Instances of Procedures for more information.