Here, we read a single row from a table.

在这里，我们从表中读取一行。

The SELECT INTO must return a single row or it fails.

SELECT INTO必须返回单个行，否则就会失败。

The UPDATE affects the whole rowset, not just a single row.

UPDATE影响整个行集，而不是单个行。

By default there is a single row with about a dozen buttons.

默认情况下，只会有一行带有十几个按钮的工具栏。

Ranges may consist of more than a single column or a single row.

区间可能包含不止一个列或一个行。