Finding unmatched records
<p>I'm a C# newbie programmer.
My first project is to find unmatched records in two un-identical oracle tables. Table A has 10 columns while table B has 15 columns. Both of them have 4 columns that are identical though and I'm using those 4 columns to find the unmatched records. </p>

<p>these are the records I need to match.
-time
-date
-stock number
-stock price</p>

<p>Any suggestions on how to this using asp.net?
thanks</p>
