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What is D command work in the respect of QBE?
D: It is the command inside QBE to delete tuple(s) from the relation.
for the following business rules . Identify all entities, attributes, relationships, primary keys, cardinalities and constraints where appropriate 3. (9) An art museum owns a larg
Objectives differentiate DDBMS and conventional DBMS; Describe Network topology for DDBMS; Describe the concepts of horizontal and vertical fragmentation; Descr
why are older data base model are being replaced by new data model
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
#A multinational tour operator agency has gained new business growth in the North American market through the use of social media. Its operation has expanded by 50% within six mont
What is a database? At any given time, they're storing a tremendous amount of information - inventory, in the case of Amazon, messages and interrelationships in the case of Tw
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the
A student entity type has the following attributes,name..
The Database MySQL scripts cars_for_sale.sql and car_details.sql containing the data to use for this task have been supplied. To complete this task, you need to first create
Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso
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