Sql statement for cumulative sum.

Hello guys, how are you doing?

Thanks for the time answering this.

I want to make a cumulative sum using a sql statement. Can you help me telling whats the error in this formula:

select t."data da operação",t."Cliente", (select sum(x."saldo inicial") + IF(x."TIPO"='SALDO INICIAL',0,if(sum(x." Quantidade")=0,sum(x."profit"),0)) as teste from "Futura Completo" x

where x."DATA DA OPERAÇÃO"<= t."DATA DA OPERAÇÃO") as "Patrimônio"

from "Futura Completo" t

order by t."DATA DA OPERAÇÃO"

Tks Guys

Leonardo Hermoso