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SQL: Retrieve duplicate records

 
Greenhorn
Posts: 2
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If select distinct removes duplicates, How do you do you do just the opposite?
For example the table contains
11111
12345
12345
12345
22222
33333
99999
99999

I only want to retrieve 12345, 99999 all others should not show up in results. Can this be done?
Can this be done?
 
Bartender
Posts: 10336
Hibernate Eclipse IDE Java
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Something like this should work:
 
Greenhorn
Posts: 22
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How about this?

select col_1
from table_1
group by col_1
having count(*) > 1

Gareth
 
Phebe Wilson
Greenhorn
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Thank you Gareth, that worked. Paul, the where clause didn't take.
Thank you very much!!! Problem solved.
 
Paul Sturrock
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Doh! I should test code before posting - a lesson I never seem to learn. Of course it needs to be having, not where. Well spotted Gareth Faulkner.
 
Sheriff
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"M N",

There aren't may rules that you need to worry about here on the Ranch, but one that we take very seriously regards the use of proper names. Please take a look at the JavaRanch Naming Policy and adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

Thanks!
bear
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Consider Paul's rocket mass heater.
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