Question: Which relational algebra operators can be applied to a pair
Which relational algebra operators can be applied to a pair of tables that are not union-compatible?
Answer to relevant QuestionsExplain why the data dictionary is sometimes called "the database designer's database."Suppose that you have the ERM shown in Figure Q3.14.During some time interval, a Driver can drive many Trucks and any Truck can be driven by many DriversHow would you convert this model into an ERM that displays only 1:M ...What would be the conceptual view of the INDEX table that is described in question 22? Depict the contents of the conceptual INDEX table.Create the ERD to show the relationship between STORE and REGION.Do the tables exhibit referential integrity? Answer yes or no and then explain your answer. Write NA (Not Applicable) if the table does not have a foreign key.
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