Save As can be used to save an already saved file with a different name

_________ is a standard that uses text characters to define the meaning, structure, and appearance of data

A) Extensible Markup Language B) Data Interchange Format C) HyperText Language D) Portable Document Format

Consider the following bill of materials problem: the database has a relation Subpart(Part, Subpart, Quantity), which tells which direct subparts are needed for each part and in what quantity. For instance, Subpart(mounting_assembly, screw, 4) means that the mounting assembly includes four screws. For simplicity, let us assume that parts that do not have subparts (the atomic parts) are

represented as having NULL as the only subpart (for instance, Subpart(screw, NULL,0)). Write a recursive query to produce a list of all parts and for each part the number of primitive subparts it has. What will be an ideal response?