Duplicates removal/prevention in VBA ( New to VBA)

[Oklahoma]

Hi All:

it's actually my first post here, and I am practically new to VBA, so bare with me.

I am running macros that import data from a .txt file, organize it, and then append the new data to historical data base.

Since I am running a macro of macros, and finally closing file and saving automatically ( ActiveWindow.Close savechanges:=True), I risk of running the same macro twice sending duplicates to the destination range.

So how can remove such duplicates using VBA( already have one duplicate), and how can I prevent duplicates within my current macro.

Much appreciated.

 

[ajamess]

You have a couple choices here that depends on how your data/imports are structured.

The main thing will be distinguishing a column (e.g transaction #), or a combination of columns (Account# + Date) that will be unique, and not overwritten.

a) You can have a check at the beginning of your macro, that checks if the first unique value from your import, already exists in the database. If it does, cancel the import, if not, continue and run the macro.

b) At the end of your import, you can use that unique column to remove duplicates. This would clean up your existing duplicates you already have.

 

[Oklahoma]

Wow that was quick. Thanks alot: let me try this and I'll get back if it works.

You have a couple choices here that depends on how your data/imports are structured.

The main thing will be distinguishing a column (e.g transaction #), or a combination of columns (Account# + Date) that will be unique, and not overwritten.

a) You can have a check at the beginning of your macro, that checks if the first unique value from your import, already exists in the database. If it does, cancel the import, if not, continue and run the macro.

b) At the end of your import, you can use that unique column to remove duplicates. This would clean up your existing duplicates you already have.