Please give me queries for the following
1. To get the count of duplicate records.
2. A query to delete the duplicate records.
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Answer Posted / meher
1. To get the duplicate records.
Use group by clause to the column on which you want to
check the duplicates records.
syntax:
select column_name, count(*) from table_name group by
column_name having count(*) >1
2. To delete the duplicate records.
syntax:
delete from table_name where rowid in (select max(rowid)
from table_name group by column_name having count(*)>1 )
This will work.
Please let me know in case of any issues.
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