Effectively maintaining an Access database requires the regular removal of duplicate records. The Find Duplicates Query wizard handles this chore quickly and easily.

How to Check for Duplicates Before Inserting Into SQL. When you insert new records into an SQL database, you may run into issues where you accidentally overwrite records that are already present ...

Create a new empty table except set the fields that you don''t want duplicated as primary key and then dump the entire table from old to new and all the duplicated records will get bumped out as ...

Microsoft Power Query requires less specialized knowledge when trying to find duplicate records in a Microsoft Excel sheet.

Executing this query in SQL returns results such as: Now if you drop the view from your data model and re-add it, EF will pick up the real primary key column that is labeled NID and your LINQ ...