记得常回头看看以前犯的错误，但绝不要为它们感到后悔。

Remember to look back upon your mistakes from time to time, but never regret them.

youdao

即使程序需要每一列，最好根据sql语句中的名称来显式地寻找每一列，以便增加清晰度和避免以前犯的错误。

Even if the program needs every column, it is better to ask for each column explicitly by name in the SQL statement for clarity and to avoid the previous pitfall.

youdao

实际上，您可能犯的很多错误以前就已经存在了。

In truth, many of the mistakes that you're likely to make have been made before.

youdao