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Questions and Answers
In the hierarchical data model, the mapping from parent to child is?
In the hierarchical data model, the mapping from parent to child is?
1:N (one-to-many)
Advantages of relational data models generally include?
Advantages of relational data models generally include?
reduced information redundancy
A class in a relational database model is defined as?
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?
Which statement about enterprise systems is correct?
The FROM clause to the SELECT statement used in SQL states the criteria that must be met?
The FROM clause to the SELECT statement used in SQL states the criteria that must be met?
The 'ORDER BY Amount ASC' clause to the SELECT statement suggests that?
The 'ORDER BY Amount ASC' clause to the SELECT statement suggests that?
SAP modules available for implementation include?
SAP modules available for implementation include?
Cloud computing is?
Cloud computing is?
What kind of relationship does a network data model represent?
What kind of relationship does a network data model represent?
Which one of the following is a valid primary key for a cash receipt table?
Which one of the following is a valid primary key for a cash receipt table?
Which of the following is used in SQL to begin a query?
Which of the following is used in SQL to begin a query?
The GROUP BY operator in SQL is used to?
The GROUP BY operator in SQL is used to?
When using Microsoft Access, the main function of 'Table' is to?
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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