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a. What is a relation?
b. What is a tuple?
c. What is an attribute in a relational data model?
d. What is referential integrity?
Create a new Microsoft Access database named DryCleaning. Add a table named Customers. In Microsoft Word, type the SQL script that you would use to create the table. Include the following fields: CustomerNumber (AutoNumber, Primary Key, required)
Distinguish the role of databases and database management systems in the context of enterprise systems
How many projects do John New and Alice Johnson work on - Which Job Class is the second highest Charge Hour in the table and List all the employees in alphabetical order - CREATE TABLE for every table (entity) represented on the ER Diagram
A motor vehicle maintenance center wants to improve its services by using database management systems and data mining what tables are needed in such a database and how can it help improve their services
Create Queries and explain the purpose of each query in detail.
part a major change definition and facilitating forces1.discuss the differences between a voluntary change and an
Each department has many employees assigned to it, but each employee works for only one department at one of the factories. An employee cannot work at more than one factory at a time.
Describe the role of databases and database management systems in managing organizational data and information.
Display the balance of the customer whose balance is the smallest. Display the id, the name, and the balance of the customer with the largest balance
How important is the documentation of the database environment? Moreover, how do you think the advent of cloud computing has affected electronic data interchange (EDI)
Create a data dictionary that includes the following: a. A description of the content for each field b. The data type of each field ac. The format the data will be stored as in the field d. The range of value for the field e. A label, as required, i..
Why do database rocessing and dcument processig need each other? - Explain the phase standarized but customizable.
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