Hi,
I used to see couples of thread that asking about how to delete the duplicated record.
I just would like to know, why duplicated record will occured? Does PK or candicate key take care of the uniqueness, doesn't it?
Or, any other case that will cause duplicated record?
Sorry for my innocent.
Thank you.
I am not the most powerful man in this world.
I am not the worst man in this world either.
I just as same as all of you.
I still need to learn from my mistakes...
