I need to remove duplicate rows from a fairly large SQL Server table (i.e. 300,000+ rows). The rows, of course, will not be perfect duplicates because of the existence of the RowID identity field.

9 It can be done by many ways in sql server the most simplest way to do so is: Insert the distinct rows from the duplicate rows table to new temporary table. Then delete all the data from …

May 29, 2018 · 73 Use the DISTINCT keyword in a subquery to remove duplicates before combining the results: SQL Fiddle SELECT ProjectID ,STRING_AGG(value, ',') WITHIN …

Jul 28, 2019 · Also indices of duplicates should be identified. Self join is a good option but to have a faster function it is better to first find rows that have duplicates and then join with original …

You can use the in SQL Server to get the distinct records only. Apart from this you can also use the function to get the distinct result by assigning the numbers to a result set.

Sep 18, 2008 · I have a table with say 3 columns. There's no primary key so there can be duplicate rows. I need to just keep one and delete the others. Any idea how to do this is Sql …

Feb 10, 2009 · I'm testing something in Oracle and populated a table with some sample data, but in the process I accidentally loaded duplicate records, so now I can't create a primary key …

Jul 23, 2016 · 1 If you're looking for a way to remove duplicates, yet you have a foreign key pointing to the table with duplicates, you could take the following approach using a slow yet …

Sep 12, 2010 · I have a table which looks like that: As You see, there are some date duplicates, so how to select only one row for each date in that table? the column 'id_from_other_table' is …

May 30, 2021 · I would like to remove duplicate rows from my table. So that I have used ROW_NUMBER() function in order to find the duplicate values. After that I wanted to add …