Questions and Answers
In the hierarchical data model, the mapping from parent to child is?
1:N (one-to-many)
Advantages of relational data models generally include?
reduced information redundancy
A class in a relational database model is defined as?
person, place, thing, transaction, or event about which information is stored.
Which statement about enterprise systems is correct?
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The FROM clause to the SELECT statement used in SQL states the criteria that must be met?
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The 'ORDER BY Amount ASC' clause to the SELECT statement suggests that?
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SAP modules available for implementation include?
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Cloud computing is?
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What kind of relationship does a network data model represent?
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Which one of the following is a valid primary key for a cash receipt table?
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Which of the following is used in SQL to begin a query?
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The GROUP BY operator in SQL is used to?
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When using Microsoft Access, the main function of 'Table' is to?
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Study Notes
Hierarchical Data Model
- In the hierarchical data model, the relationship from parent to child is defined as 1:N (one-to-many).
Relational Data Model Advantages
- Advantages of relational data models include reduced information redundancy.
Definition of a Class
- A class in a relational database model refers to a person, place, thing, transaction, or event about which information is stored.
Enterprise Systems
- Correct statement: SAP, Oracle, and Microsoft offer products for enterprise systems.
SQL FROM Clause
- The FROM clause in a SQL SELECT statement determines the criteria required to be included in the query result.
SQL ORDER BY Clause
- The clause "ORDER BY Amount ASC" in SQL indicates that the results will be sorted in ascending order based on the amount.
SAP Modules
- Available SAP modules for implementation include Financial Accounting, Payroll, and Sales and Distribution.
Cloud Computing
- Cloud computing is defined as internet-based computing, where firms access shared resources, software, and information on demand.
Network Data Model Relationships
- The network data model represents many-to-many relationships.
Primary Key for Cash Receipt Table
- A valid primary key for a cash receipt table is the cash receipt number.
Starting an SQL Query
- The SQL command used to begin a query is SELECT.
GROUP BY Operator in SQL
- The GROUP BY operator is employed in SQL to aggregate function results based on one or more specified columns.
Function of Table in Microsoft Access
- In Microsoft Access, the primary function of a "Table" is to store data.
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Test your knowledge with these flashcards covering key concepts from Chapter 4 of Database Systems. Explore important terminology and definitions related to hierarchical data models and relational databases. Perfect for reinforcing your understanding of relational database structures and advantages.