Keep one operational order as the source of truth, then allocate billable items to separate issuing companies with controls that prevent duplicate invoicing.
Tag Archives: duplicate
Fast way to find duplicate data in MongoDB
I need to find out the duplicate data content in my 40 Millions records, then I can make the unique index to my name field. > db.collecton.aggregate([ … { $group : {_id : “$field_name”, total : { $sum : 1 } } }, … { $match : { total : { $gte : 2 } Continue reading “Fast way to find duplicate data in MongoDB”