加总专题

数据计算_先分组平均再加总平均与直接整体平均的差异

数据计算_先分组平均再加总平均与直接整体平均的差异 例如: 现有 A, B, C, D, E, F, G, H 共 8 组数据。 A: 16619B: 12922C: 15946D: 13096E: 13647F: 13700G: 13703H: 12430 其整体平均的值为: Average of ABCDEFGH: (16619 + 12922 + 15946 + 1

【Prisma】如何加总一个字段?

In Prisma with Node.js, you can use the aggregate function to calculate the sum of a field across all records in a database table. Here is an example of how you can perform an aggregation to calculate