When creating a table from an ERD, the entity becomes the table. What do the attributes become?1 pointCellsRows ColumnsAll of the above
Question
When creating a table from an ERD, the entity becomes the table. What do the attributes become?
- 1 point
- Cells
- Rows
- Columns
- All of the above
Solution
Break Down the Problem
- Identify the key components of the question: ERD (Entity-Relationship Diagram), entities, attributes, and their representation in a table format.
- Understand the terminologies being used in the options provided.
Relevant Concepts
- In a database, an entity is represented as a table.
- The attributes of an entity correspond to columns of that table.
Analysis and Detail
- Cells: These are the individual data points that are created by the intersection of rows and columns.
- Rows: Each row in a table represents a single record or instance of an entity, which encompasses all the attributes.
- Columns: Attributes of the entity become the columns in the table, each representing a particular property of the data stored in the rows.
Verify and Summarize
Analyzing the options:
- Cells are individual data points, not attributes.
- Rows represent records, not attributes.
- Columns are directly derived from the attributes.
Thus, the attributes of an entity in an ERD become the columns in the corresponding table.
Final Answer
Columns.
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