使用Group By语句获取行计数SQL Server 2008

Question

I am using SQL Server 2008 and navicat. I need to get Row Count in a table using SQL. The problem is that I am using Group By statement and my result is :

I need Sum of rcount value, the same like RowCount without Group By statement.

Thanks, in advance.

Answer 1

Assuming you want this as an additional column, you can do this using window functions:

select count(*) as rcount, goalarea,
       sum(count(*)) over () as TotalCount
from table t
group by goalarea;

If you want it as a separate row, I would use with rollup :

select count(*) as rcount, goalarea
from table t
group by goalarea with rollup;

(You can also use grouping sets , but I find with rollup easier for this simple problem.)