Write a single SQL to delete duplicate records from the a
single table based on a column value. I need only Unique
records at the end of the Query.
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Answer Posted / milind
Nested query method might be required in other databases
how ever in TD we don’t need to follow such a difficult way
to just find out the unique rows.
In TD we have functions like Rank () and Rownum() in the
combination of Qualify, helps you to select out the rows
which you wants to delete.
you can add a condition like ‘Where Rank() > 1’
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