Reflection Question: Creating and Editing Documents •What is the relationship between legibility and contrast?

Give proper view

SUPLIER CUSTOMERS #id buy # id *name * tax number * product o email # name sell * address Find the mistakes in the ERD related to Entities, Attributes and Relationships. Explain reason for these mistakes. Make necessary changes on ERD and present only effected structures (entities, attributes and relationships) A- B I

CSC 472 Introduction to Database Systems Project Consider the contents of output tuples generated by a join operator. The advantage of "late materialization" approach is that future operators in the query plan never need to go back to the base tables to get more data. Group of answer choices True False

Bottom two please show how to do, i do not need to understand what I have marked out

Build a relational model for the following ER schema

Ch. 4-problem 3: Given the business rule “an employee may have many degrees,” discuss its effect on attributes, entities, and relationships. (Hint: Remember what a multivalued attribute is and how it might be implemented.) Suppose that an employee has the following degrees: BA, BS, and MBA. These degrees could be stored in a single string as a multivalued attribute named EMP_DEGREE in an EMPLOYEE table such as the one shown next: EMP_NUM EMP_LNAME EMP_DEGREE 123 Carter AA, BBA 124 O’Shanski BBA, MBA, Ph.D. 125 Jones AS 126 Ortez BS, MS   Ch. 4-problem 4: What is a composite entity, and when is it used?   Ch. 4-problem 5: Suppose you are working within the framework of the conceptual model in Figure Q4.5.   Figure Q4.5 The Conceptual Model for Question 5   Given the conceptual model in Figure Q4.5: Write the business rules that are reflected in it.   Identify all of the cardinalities.   Ch. 4-problem 6: What is a recursive relationship?…

A static data structure is expected to be used in this application. Then identify a situation when a dynamic data structure might be useful.