how to convert row to column in SQL

Question

Can somebody help me with this SQL Query.

In the following table, RESPONSES counts how many times SEGMENT has responded on CHECKED date.

CREATE TABLE #         


        

Answer 1

Select Checked
    , Sum( Case When Segment = 'A' Then 1 Else 0 End ) As A
    , Sum( Case When Segment = 'B' Then 1 Else 0 End ) As B
    , Sum( Case When Segment = 'C' Then 1 Else 0 End ) As C
From #Test
Group By Checked

This type of query is often called a crosstab query. The above solution assumes you want to statically declare which columns you want to see. If you want to dynamically determine the columns, then what you seek is a dynamic crosstab and it cannot be done natively in the SQL language. The SQL language was not designed for dynamic column generation. The solution is to build the query in your middle-tier.