Question: 6.Z. Consider the LIBRARY relational database schema shown in Figure 6.6. Choose the appropriate action (reject, cascade, set to NULL, set to default) for each

6.Z. Consider the LIBRARY relational database schema shown in Figure 6.6. Choose the appropriate action (reject, cascade, set to NULL, set to default) for each referential integrity constraint, both for the deletion of a referenced tuple and for the update of a primary key attribute value in a referenced tuple. Justify your choices

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