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The PROJECT operation of relational algebra creates a new table that has always
  • a)
    More number of columns than the original table
  • b)
    The same number of rows as the original table.
  • c)
    The same number of columns as the original table
  • d)
    More number of rows than the original table
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The PROJECT operation of relational algebra creates a new table that h...
If there are no duplicate entries in the column values, then (b) is true.
Elsewhere no. of rows can be lesser than the original table.
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Most Upvoted Answer
The PROJECT operation of relational algebra creates a new table that h...
Explanation:
Project operation in relational algebra is used to select a subset of columns from a table. The resulting table will have the same number of rows as the original table but only the specified columns.

Key Points:
- Project operation creates a new table with a subset of columns from the original table.
- The number of rows in the new table remains the same as the original table.
- The new table will have fewer columns based on the specified attributes in the projection operation.
- It helps in reducing the complexity of queries and focusing on specific data attributes.
- The project operation eliminates duplicate rows in the resulting table.
By selecting specific columns using the project operation, it helps in simplifying the data and focusing on the required information, maintaining the same number of rows as the original table.
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The PROJECT operation of relational algebra creates a new table that has alwaysa)More number of columns than the original tableb)The same number of rows as the original table.c)The same number of columns as the original tabled)More number of rows than the original tableCorrect answer is option 'B'. Can you explain this answer?
Question Description
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