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    <p>The key to this was where the deletes and the inserts happened.</p> <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { Player *selectedPlayer = nil; //Get rid of any adjustment score row NSIndexPath *removeIndex; for (int i = 0; i &lt; [players count]; i++) { id player = [players objectAtIndex:i]; if ([player isKindOfClass:[NSString class]] &amp;&amp; [player isEqualToString:@"ADJUST_SCORE_ROW"]) { if (i == indexPath.row) { [scoreTableView selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone]; return; //This is the case where the row that was selected was an adjustment row } removeIndex = [NSIndexPath indexPathForRow:i inSection:indexPath.section]; [players replaceObjectAtIndex:i withObject:@"DELETE_ME"]; break; } } selectedPlayer = [players objectAtIndex:indexPath.row]; [scoreTableView beginUpdates]; NSIndexPath *insertPath; if (removeIndex &amp;&amp; [removeIndex row] &lt; indexPath.row) { insertPath = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section]; } else { insertPath = [NSIndexPath indexPathForRow:indexPath.row + 1 inSection:indexPath.section]; } HoleScore *holeScore = [[round scoreForPlayer:[players objectAtIndex:indexPath.row] holeGroup:self.holeGroupIndex andHole:hole.holeIndex] objectForKey:CURRENT_HOLE_SCORE]; if (holeScore == nil) { NSEntityDescription *scoreEntity = [NSEntityDescription entityForName:@"HoleScore" inManagedObjectContext:moc]; holeScore = [[HoleScore alloc] initWithEntity:scoreEntity insertIntoManagedObjectContext:moc]; [holeScore setPlayer:selectedPlayer]; [holeScore setHoleGroupIndex:[NSNumber numberWithInteger:holeGroupIndex]]; [holeScore setHoleIndex:[NSNumber numberWithInteger:hole.holeIndex]]; [holeScore setStrokes:[NSNumber numberWithInteger:[hole par]]]; [holeScore setPuts:[NSNumber numberWithInteger:2]]; HoleScoreCardTableViewCell *playerCell = (HoleScoreCardTableViewCell*)[scoreTableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section]]; [playerCell setHoleScore:holeScore]; [round addScoresObject:holeScore]; NSError *error; [moc save:&amp;error]; if (error) { NSLog(@"Error saving: %@", error.localizedDescription); } } for (int i = 0; i &lt; [players count]; i++) { id player = [players objectAtIndex:i]; if ([player isKindOfClass:[NSString class]] &amp;&amp; [player isEqualToString:@"DELETE_ME"]) { [players removeObject:player]; break; } } if (removeIndex) { [scoreTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:removeIndex] withRowAnimation:UITableViewRowAnimationTop]; } [players insertObject:@"ADJUST_SCORE_ROW" atIndex:insertPath.row]; [scoreTableView insertRowsAtIndexPaths:[NSArray arrayWithObject:insertPath] withRowAnimation:UITableViewRowAnimationTop]; [scoreTableView endUpdates]; } </code></pre>
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Guidance
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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