OIC - Gen2 to Gen 3 Migration(Instance ID change from integer to string)

Summary:

This is regarding Gen2 to Gen3 Migration. In one of the pre-requisites there is point mention that Instance Id change from integration to String.

Content (required):

So question is the new instance id Gen3 will going to generate will always be number value or it can be non-number as well?

Because we have most of logic returned on instance id as numeric and we are treating as Number type in Database. If Oracle generate non-number value for instance id then database insertion will fail and the logic of retrieving the data will go on toss.

Version (include the version you are using, if applicable):