Question : create table after eliminating record with duplicates on one column

I have table like this:

department job_description active_code
1 worker1 32
1 worker2 33
1 worker3 34
2 worker3 35
2 worker3 36
2 worker4 37

I need to eliminate records who have duplicates on the "job_description" column , to leave only one worker3 record on the table (doesn't care which one) , the output should be like this:

department job_description active_code
1 worker1 32
1 worker2 33
1 worker3 34
2 worker4 37

only one worker3

Answer : create table after eliminating record with duplicates on one column

the above post will give you the result set you demand... and this one do replace your table with the new one...

                       
             SELECT MIN(department) AS department, job_description, MIN(active_code) AS active_code INTO yourNewtable
FROM yourTable  
GROUP BY job_description

DROP TABLE yourTable

SELECT * INTO yourTable
FROM yourNewtable

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