Write Create Table SQL statements based on the above ERD. All tables must have primary keys. All tables must have appropriate foreign key constraints. Foreign keys must have the same name, datatype and size of the primary key that they refer to The following columns datatypes and sizes must be used: bid,authid / number(4) title,sname,fname    /   varchar2(30) sellingprice, payrate    /  number(6,2) Table Column Type Range author sname & fname Unique   book title Not Null   book sellingprice Check not negative allocation payrate Check 1 to 79.99

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