Oracle Join with extra commas

I have  following Tables in Oracle

Table: Books

 Table : Author

  AuthorObjID will follow the format ,AuthorID, (For Example if AuthorID is 1234 AuthorObjID is ,1234,)

   How Can I get the List of BookName and corresponding AuthorName ?
Sam OZAsked:
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Ryan ChongBusiness Systems Analyst , ex-Senior Application EngineerCommented:
select a.BookID, a.BookName, b.Authorname
from Books a inner join Author b
on a.AuthorObjID = ',' || b.AuthorID || ','

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Vikas GargAssociate Principal EngineerCommented:

Do you have multiple author id in AuthorObjid column like 1,2,34 etc ?

Do you want the query for oracle or SQL ?
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