best proceed store churned flags database


i have web-based concentration notifies users activity site around email. users select kinds notifcations wish receive. distant there 10 opposite options (each true/false).



i'm now storing varchar domain 0 1 distant commas. example:
1,0,0,0,1,1,1,1,0,0



this works nonetheless it's challenging supplement new presentation flags keep lane fall belongs notification. there an supposed customary doing this? i pondering adding another list buttress any presentation type. following i supplement new columns i need, nonetheless i'm certain fit is.



thanks advance!



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