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    <p>I don't know about "best possible", but here's how to do it in linq to sql.</p> <pre><code>using (CustomDataContext dc = new CustomDataContext()) { List&lt;Row&gt; rows = dc.Rows .Where(row =&gt; startingID &lt;= row.ID) .OrderBy(row =&gt; row.ID) .ToList(); Row firstRow = rows.First(); int firstRowAmount = firstRow.Amount; dc.Rows.DeleteOnSubmit(firstRow); foreach(Row row in rows.Skip(1)) { row.Amount -= firstRowAmount; } dc.SubmitChanges(); } </code></pre> <p>The advantages here are:</p> <ul> <li>Single transaction - the whole update goes or none of it.</li> <li>Optimistic concurrency - if someone removes or updates one of our rows between our read and our write, our changes are rejected.</li> <li>Clear maintainable c# code.</li> </ul> <p>The downsides are:</p> <ul> <li>The records must be read into memory before they can be updated.</li> <li>One update statement is generated per row.</li> </ul> <hr> <p>Since you have a million rows to update, the above is kind of slow and wasteful... You're going to have to update those rows in fewer sql commands and without reading the rows into memory.</p> <pre><code>using(TransactionScope ts = new TransactionScope()) { using (CustomDataContext dc = new CustomDataContext()) { Row theRow = dc.Rows.Single(row =&gt; startingID == row.ID) int firstRowAmount = theRow.Amount; dc.Rows.DeleteOnSubmit(theRow); dc.SubmitChanges(); dc.ExecuteCommand(@"Update Row SET Amount = Amount - {0} WHERE {1} &lt; ID", firstRowAmount, startingID); ts.Complete(); } } </code></pre>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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