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Q1 SQL and Relational Algebra
8 PointsQ1.1
1 PointConsider the following SQL query. Which of the following relational algebra
expressions will produce an equivalent result?
SELECT a.name, b.instructor_for
FROM
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01
Start by identifying the table or tables you need to query from.
02
Determine which columns you need to retrieve data from.
03
Use the SELECT statement to specify the columns you want to retrieve data from.
04
Specify the table or tables you are querying from in the FROM clause.
05
Use the WHERE clause to specify any conditions that must be met for a row to be included in the result set.
06
If needed, use the GROUP BY clause to group rows that have the same values in specified columns.
07
Use the ORDER BY clause to sort the results based on one or more columns.
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What is this SQL query?
This SQL query is a command used to interact with a database, enabling users to retrieve, update, delete, or insert data.
Who is required to file this SQL query?
Individuals or systems that manage or analyze data in a database are required to file this SQL query.
How to fill out this SQL query?
To fill out this SQL query, specify the desired action (SELECT, UPDATE, DELETE, INSERT) followed by the relevant table and criteria.
What is the purpose of this SQL query?
The purpose of this SQL query is to perform operations on a database, such as querying for data or modifying existing records.
What information must be reported on this SQL query?
The SQL query must report the structure of the data, any filtering criteria, and the specific actions to be performed on the database.
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