troubleshooting Question

How can I count the number of times a value exists in a field

Avatar of tselectro
tselectro asked on
Microsoft SQL ServerSQL
4 Comments1 Solution322 ViewsLast Modified:
Hello, I have two tables. One "header data" and one "data only".

Header table:
[ID]      [DateTime]                        [Comment]
1      2014-01-08 20:10:26.767      Test running 1
2      2014-01-08 20:29:37.203      Test running 2

Data table:
[ID]      [Header_ID]      [Type]
1      1                  'A'
2      1                  'B'
3      1                  'A'
4      1                  'C'
5      2                  'A'
6      2                  'C'
7      2                  'C'

I want to run a query that give me following results (how many times the [Type] field have value 'A','B' or 'C' for every "running".

[ID]      [DateTime]                        [Comment]            [CountA]      [CountB]      [CountC]
1      2014-01-08 20:10:26.767      Test running 1      2            1            1
2      2014-01-08 20:29:37.203      Test running 2      1            0            2
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