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6.001 Structure and Interpretation of Computer Programs. Copyright o 2004 by Massachusetts Institute of Technology Slide 10.1.6 Examples of using tables Associated with each name key, we might have another table that People lists information about that person: their age, their salary, and so on. And associated with each of those pieces of information might be other tables, for example, the salary information for previous Slide 10.1.7 Not only do our table data abstractions need to be flexible enoughExamples of using tables to allow for other tables to be entries in a table, we may have other ways of gathering information together in a table. For example, we might have another table that lists employees by age Slide 10.1.8 Examples of using tables Clearly we can build a table where the keys are the ages of the employees. Here, however, the value associated with a key should be a list whose elements point to the entries in other tables that capture all the data about each employee So our tables need to be very flexible in terms of what information 6.001 Notes: Section 10.26.001 Structure and Interpretation of Computer Programs. Copyright © 2004 by Massachusetts Institute of Technology. Slide 10.1.6 Associated with each name key, we might have another table that lists information about that person: their age, their salary, and so on. And associated with each of those pieces of information might be other tables, for example, the salary information for previous years. Slide 10.1.7 Not only do our table data abstractions need to be flexible enough to allow for other tables to be entries in a table, we may have other ways of gathering information together in a table. For example, we might have another table that lists employees by age. Slide 10.1.8 Clearly we can build a table where the keys are the ages of the employees. Here, however, the value associated with a key should be a list whose elements point to the entries in other tables that capture all the data about each employee. So our tables need to be very flexible in terms of what information they can store. 6.001 Notes: Section 10.2
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