I don't want duplicated data in my DataB.

[ANGELICA]

,Hello everyone!
I need to find the way of blocking an specified field from entering exiting
data, even better,stopping duplicated records .I Know that is silly, but I
just can't do it!!!

Somebody help me please

 

[Sergey Poberezovskiy]

Create a unique index on the underlying table.

HTH