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。
In principle, we could play this with the whole class, but let's single out a particular row of the class so I'm going to come down here and I guess eventually, well I'll grab it in a minute.
理论上,我们可以全班一起做这个博弈,但我要选出特定的一行,我先走下来,我觉得,我很快就能挑到人
应用推荐