Created
November 29, 2017 08:26
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| id, name, age | |
| 1, dean, 10 | |
| 2, dean, 10 | |
| 1, blah, 9 |
select name, count(name) from students group by name having count(name) > 1
dean, 2
blah, 1
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table is called "students". Write a query that shows record that's duplicated along with the count. Example:
name, count
dean, 10
Don't show the records that isn't duplicated