Duplicate rows need to identify & store in seperate DataTable usin

[B.N.Prabhu]

Hi,

I have a DataTable with several rows. Its having 20 Columns. when i click
the Insert button then i have to check the Database Rows. Whether these new
rows are already available in the Database. If its there, then i need to
seperate the Duplicate Records

Based upon 4 columns(EmployeeID, ProjectName, ProjectType, StartTime --
should be activate as a Composite Primary key)

and store those duplicate records into seperate DataTable and insert the
Non-Duplicate records into the Database. I need a seperate function. Because
I have to check the duplicate records with database as well as within the
DataTable. The DataTable may have duplicate records.

Please Help.

By
Prabhu