Pivot and calculations
Hi all
Frank has been able to help me with this PivotTable:
create table test_base_table ( FY number, FY_MONTH number, FIRST_VALUE number, SECOND_VALUE number); insert into test_base_table values (2012, 1, 10, 100); insert into test_base_table values (2012, 2, 20, 200); insert into test_base_table values (2012, 3, 30, 300); insert into test_base_table values (2013, 1, 15, 150); insert into test_base_table values (2013, 2, 25, 250); insert into test_base_table values (2013, 3, 35, 350);
Solution of query:
SELECT p.* , month_1 + month_2 + month_3 AS all_months FROM test_base_table UNPIVOT ( val FOR key IN ( first_value AS 'firstValue' , second_Value AS 'secondValue' ) ) PIVOT ( MIN (val) FOR fy_month IN ( 1 AS month_1 , 2 AS month_2 , 3 AS month_3 ) ) p ORDER BY fy, key ;
Now, I'm doing some calculations:
The first begin_calc of the first month is 800 (value) in another table.
The end_calc is the sum of the begin_calc + firstValue + secondValue.
The avg_value is the average of (firstValue + secondValue) / 2
The begin_calc of the second month (month_02) is the end_calc of the month_01 of the previous month.
The begin_calc of the last_month (month_03) is the begin_cal of the following year and so on.
Is it possible to do this in SQL?
Thank you!
EXERCISE KEY MONTH_1 MONTH_2 MONTH_3 ALL_MONTHS
---------- ----------- ---------- ---------- ---------- ----------
2012 800-910-1130 begin_calc
2012 10 20 30 60 firstValue
secondValue 2012 100 200 300 600
2012 910-1130-1460 end_calc
2012 avg_value (10 + 100) / (20 + 200) 2 / 2
begin_calc 2012-1460
2013 15 25 35 75 firstValue
2013 150 250 350 750 secondValue
2013 910-1130-1460 end_calc
avg_value 2013 (10 + 100) / 2 (20 + 200) / 2.
Hello
Here's one way:
WITH got_aggregates AS
(
SELECT the year, fy_month, key
The SUM (val) AS sum_val
AVG (val) AS avg_val
SUM (SUM (val)) (PARTITION BY KEY
ORDER BY fy, fy_month
)
+ (
SELECT MAX (star_rate)
RATES
) AS sum_so_far
OF test_base_table
UNPIVOT (val
FOR key IN (first_value AS "firstValue"
, second_value AS "secondValue".
)
)
GROUP BY GROUPING SETS ((fy, fy_month, keys)
(fy, fy_month)
(fy, key)
)
)
SELECT the exercise, 'begin_calc' AS a key
MIN (CASE WHEN fy_month = 1 THEN sum_so_far - sum_val END) AS month_1
MIN (CASE WHEN fy_month = 2 THEN sum_so_far - sum_val END) AS month_2
MIN (CASE WHEN fy_month = 3 THEN sum_so_far - sum_val END) AS month_3
, NULL AS all_months
, ' ' AS " "
OF got_aggregates
WHERE key IS NULL
GROUP BY fiscal year
UNION
SELECT the year, key
MIN (CASE WHEN fy_month = 1 THEN sum_val END) AS month_1
MIN (CASE WHEN fy_month = 2 THEN sum_val END) AS month_2
MIN (CASE WHEN fy_month = 3 THEN sum_val END) AS month_3
MIN (CASE WHEN fy_month IS NULL THEN END sum_val) AS all_months
, ' ' AS " "
OF got_aggregates
WHERE do I enter ("firstValue", "secondValue")
GROUP BY fy, key
UNION
SELECT the exercise, 'end_calc' AS a key
MIN (CASE WHEN fy_month = 1 THEN sum_so_far END) AS month_1
MIN (CASE WHEN fy_month = 2 THEN sum_so_far END) AS month_2
MIN (CASE WHEN fy_month = 3 THEN sum_so_far END) AS month_3
NULL AS all_months
, ' ' AS " "
OF got_aggregates
WHERE key IS NULL
GROUP BY fiscal year
UNION
SELECT the exercise, 'avg_val' AS a key
MIN (CASE WHEN fy_month = 1 THEN avg_val END) AS month_1
MIN (CASE WHEN fy_month = 2 THEN avg_val END) AS month_2
MIN (CASE WHEN fy_month = 3 THEN avg_val END) AS month_3
NULL AS all_months
, ' ' AS " "
OF got_aggregates
WHERE key IS NULL
GROUP BY fiscal year
--
ORDER BY fy, "', key
;
The result is what you asked:
EXERCISE KEY MONTH_1 MONTH_2 MONTH_3 ALL_MONTHS
------ ----------- ------- ------- ------- ---------- ----
2012 800-910-1130 begin_calc
2012 10 20 30 60 firstValue
secondValue 2012 100 200 300 600
2012 910-1130-1460 end_calc
2012 avg_val 55 110 165
2013 1460-1625-1900 begin_calc
2013 15 25 35 75 firstValue
2013 150 250 350 750 secondValue
2013 1625 1900 2285 end_calc
avg_val 2013 82.5 137.5 192,5
I'm not very satisfied with all the unions; There is probably a better way.
Tags: Database
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