删除SQL Server中不需要的列Pivot

Question

The table I have is like this:

CEID  BUID   WEIGHT TREND SCORE Quarter
---------------------------------------
CE001 BU001    4     5     20     1
CE001 BU001    4     0     22     2
CE001 BU001    4     0     23     3
CE001 BU001    4     0     24     4

The result I want is like this

CEID  BUID   WEIGHT TREND Q1 Q2 Q3 Q4
---------------------------------------
CE001 BU001    4      NA  20 22 23 24

I wrote the following Pivot query:

select * 
from table
pivot (sum (score) for quarter in ([1],[2],[3],[4])) as ScorePerQuarter

But since trend is also changing I am getting multiple rows in Pivoted query as well..for different values of trend..

How can I achieve the result shown above? ie: remove trend column from the query altogether.

Answer 1

Just stop using SELECT * against the main table, and leave out the TREND column:

;WITH t AS
(
  select CEID, BUID, WEIGHT, SCORE, Quarter from dbo.table
)
SELECT * FROM t
pivot (sum (score) for quarter in ([1],[2],[3],[4])) as ScorePerQuarter;

If you want TREND = NA as shown in your "result i want", just hard-code it:

;WITH t AS
(
  select CEID, BUID, WEIGHT, TREND = 'NA', SCORE, Quarter from dbo.table
)
SELECT * FROM t
pivot (sum (score) for quarter in ([1],[2],[3],[4])) as ScorePerQuarter;