I have a table in MySQL with 30 columns and thousands of entries.
Is there a way I could make every row unique, that means if a row already exists, I should not be able to enter that row again.
I can't use primary or unique keys here, because individually every column might be repeated.
I want the row to be unique.
for example:-There are is a table with
columns->name,age,height,weight.
In this column I can't make any one or two columns unique but I should not have two entries with all the same data.