Quick question, I was curious if there is any difference between a database table that has been defined in one shot, and one that has had columns added to it over time. Does the one with added columns performance suffer in someway?Quick question, I was curious if there is any d
阅读背景：
创建的表与通过列添加创建的表之间是否存在性能差异？
来源：互联网
分享到：
