Define the database terminologies

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Reference no: EM131529006

Question: 1. Which relational algebra operators can be applied to a pair of tables that are not union-compatible?

2. Explain why the data dictionary is sometimes called "the database designer's database."

3. A database user manually notes that "The file contains two hundred records, each record containing nine fields." Use appropriate relational database terminology to "translate" that statement.

Reference no: EM131529006

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