Write a SQL query to delete all duplicate email entries in a table named Person, keeping only unique emails based on its smallest Id. +----+------------------+ | Id | Email | +----+------------------+ | 1 | john@example.com | | 2 | bob@example.com | | 3 | john@example.com | +----+------------------+ Id is the primary key column for this table. For example, after running your query, the above Person table should have the following rows: +----+------------------+ | Id | Email | +----+------------------+ | 1 | john@example.com | | 2 | bob@example.com | +----+------------------+ Note: Your output is the whole Person table after executing your sql. Use delete statement.
Write a SQL query to delete all duplicate email entries in a table named Person, keeping only unique emails based on its smallest Id. +----+------------------+ | Id | Email | +----+------------------+ | 1 | john@example.com | | 2 | bob@example.com | | 3 | john@example.com | +----+------------------+ Id is the primary key column for this table. For example, after running your query, the above Person table should have the following rows: +----+------------------+ | Id | Email | +----+------------------+ | 1 | john@example.com | | 2 | bob@example.com | +----+------------------+ Note: Your output is the whole Person table after executing your sql. Use delete statement.
Chapter6: Updating Data
Section: Chapter Questions
Problem 13RQ
Related questions
Question
Write a SQL query to delete all duplicate email entries in a table named Person,
keeping only unique emails based on its smallest Id.
+----+------------------+
| Id | Email |
+----+------------------+
| 1 | john@example.com |
| 2 | bob@example.com |
| 3 | john@example.com |
+----+------------------+
Id is the primary key column for this table.
For example, after running your query, the above Person table should have the
following rows:
+----+------------------+
| Id | Email |
+----+------------------+
| 1 | john@example.com |
| 2 | bob@example.com |
+----+------------------+
Note:
Your output is the whole Person table after executing your sql. Use delete
statement.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps with 4 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
![A Guide to SQL](https://www.bartleby.com/isbn_cover_images/9781111527273/9781111527273_smallCoverImage.gif)
A Guide to SQL
Computer Science
ISBN:
9781111527273
Author:
Philip J. Pratt
Publisher:
Course Technology Ptr
![Oracle 12c: SQL](https://www.bartleby.com/isbn_cover_images/9781305251038/9781305251038_smallCoverImage.gif)
![Programming with Microsoft Visual Basic 2017](https://www.bartleby.com/isbn_cover_images/9781337102124/9781337102124_smallCoverImage.gif)
Programming with Microsoft Visual Basic 2017
Computer Science
ISBN:
9781337102124
Author:
Diane Zak
Publisher:
Cengage Learning
![A Guide to SQL](https://www.bartleby.com/isbn_cover_images/9781111527273/9781111527273_smallCoverImage.gif)
A Guide to SQL
Computer Science
ISBN:
9781111527273
Author:
Philip J. Pratt
Publisher:
Course Technology Ptr
![Oracle 12c: SQL](https://www.bartleby.com/isbn_cover_images/9781305251038/9781305251038_smallCoverImage.gif)
![Programming with Microsoft Visual Basic 2017](https://www.bartleby.com/isbn_cover_images/9781337102124/9781337102124_smallCoverImage.gif)
Programming with Microsoft Visual Basic 2017
Computer Science
ISBN:
9781337102124
Author:
Diane Zak
Publisher:
Cengage Learning