Question

Is there a way to only load the new or updated (edited) records in a table using Sql in C#?
Suppose i have a table which consists of 1000 student records.I want to show this information in a gridview ( this is just an example ) and upon adding or editing new entries,I want the gridview to get updated and show the latest changes to the table.If i go and have a

select *

statement ,This will definitely kill the application performance,So i thought its a good idea to try to add only those new records to the previously loaded records to the gridview.
But I’m clueless on the How to do such a task.

Answer 1

There is no other solution then simply architect you database.

Just one of many possible solutions: for every inserted or updated record in database you can have a timestamp. Having that information in database you can:

a) get the latest, from timestamp point of view, record in your DataGrid

b) get from darabase all reoirds that have timestamp bigger then it.

I repeat, this us just one of many possible solutions. What fits your requirements has to be decided by yourself.