Most relationships, I have encountered are just one-many, many-one, many-mane, one-one, indirect, direct or graphical in nature. You want flat result, aggregat

Most relationships, I have encountered are just one-many, many-one, many-mane, one-one, indirect, direct or graphical in nature. You want flat result, aggregated result. Why does this have to be blamed on the data relationship and not SQL language itself? For any graphical type of relationships, I find SQL utterly hard to express my queries properly. It feels like a assembly language at that point.