How can i set a contraints check if the two column already existed ?

I would like to check set up a constraint that example like
column1
1
1
1
column2
2
2
4
as you can see 1 2 is duplicated how can do set a rule for that ?

Hi,

If you want your column contains only unique values, go to data tab > select required table > click “Table Schema and Permissions” button > for desired column select “Unique value” constraint in constraint drop-down and apply changes.

Regards,

Denys

so basically i need to set unique value to those two column data ?

Yes, it must help