oracle - Primary key using a predefined format in sql -


i trying create table generate primary key automatically using predefined format. this:

customer_id    name   phone cust_1         abc    123 cust_2         def    456

here customer_id auto generated primary key.

typically generate number , rest of fluff (cust_ in case) presentation.

if it's important can have computed column adds on prefix - make sure put indexes , unique constraints need be.


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