为什么是Oracle的问题？

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为什么是Oracle的问题？

Why is long an issue with Oracle?

如果有人能告诉我在oracle中使用长数据类型有什么问题，会更好吗？

It will be better if some one can tell me what are the issues with using the long data type in oracle? something related to storage?

我在面试中问过这个问题。

I was asked this in an interview.

推荐答案

LONG是古老的，已被废弃，已被CLOB取代。 LONGs有很多限制，它们在SQL中很难操作。因此，虽然您可能必须在旧数据库中处理它们，但在新表中使用LONG列是不明智的。

LONG is archaic and deprecated, and has been superseded by CLOB. There are lots of restrictions with LONGs and they are difficult to manipulate in SQL. So while you may have to deal with them in old databases, you would be unwise to ever use a LONG column in a new table.