Variable value as column name in Snowflake - variables

can I obtain in a query variable value as column name in Snowflake?
SET "CURRENT_YEAR"=YEAR(CURRENT_DATE());
SELECT SUM("AMOUNT") AS "$CURRENT_YEAR" (here I want the value 2021)
FROM "DB"."SCHEMA"."TABLE"
WHERE YEAR("DATE") = $CURRENT_YEAR;

Please try below:
create or replace table test (
date date,
amount int
);
insert into test values
('2021-01-01', 100),
('2022-01-01', 56),
('2022-02-01', 67),
('2021-05-01', 38),
('2023-01-01', 150),
('2021-01-06', 400),
('2021-07-11', 120)
;
SET "CURRENT_YEAR"=YEAR(CURRENT_DATE());
with year_tbl as (
select year(date) as year, amount from test
where year = $CURRENT_YEAR
)
select *
from year_tbl
pivot(sum(amount) for year in ($CURRENT_YEAR)) as yr
;
+------+
| 2021 |
|------|
| 658 |
+------+
If you want different years:
with year_tbl as (
select year(date) as year, amount from test
)
select *
from year_tbl
pivot(sum(amount) for year in (2020, 2021, 2022, 2023)) as yr
;
+------+------+------+------+
| 2020 | 2021 | 2022 | 2023 |
|------+------+------+------|
| NULL | 658 | 123 | 150 |
+------+------+------+------+

did you mean something like this
create or replace table fld_year as
(SELECT current_date() dt, 2021 as fld_year, 1 as AMT UNION ALL
SELECT current_date(),2021 as fld_year, 2 as r_num UNION ALL
SELECT current_date()- 900,2019 as fld_year, 3 as r_num UNION ALL
SELECT current_date()-400,2020 as fld_year, 4 as r_num );
SET "CURRENT_YEAR"=YEAR(CURRENT_DATE());
SELECT SUM(AMT) FROM fld_year WHERE YEAR(dt) = $CURRENT_YEAR;
SELECT * FROM fld_year WHERE YEAR(dt) = $CURRENT_YEAR;

Related

Combining two queries Oracle SQL

I'm trying to combine my two queries that work perfectly fine individually. But I'm stuck on trying to get them together to work as one and bring out the desired results.
The two queries are:
select clientid, sum(fee) as "Total Spent"
from bookings
group by clientid;
select l.clientid, sum(m.price * l.quantity) as "Total Spent"
from lineitems l
join merchandise m on m.merchid = l.merchid
group by l.clientid;
So the end goal is to combine the amount of money each client has spent for both bookings and purchasing.
i.e. Client ID 12 has spent $450 on bookings and $85 on products; so that would total to $535.
The set of data is this:
Bookings Table:
+----------+-------+------------+----------+-----------+---------+------------+
| ClientId | Tour | EventMonth | EventDay | EventYear | Payment | DateBooked |
+----------+-------+------------+----------+-----------+---------+------------+
| 12 | South | Feb | 20 | 2016 | 225 | 19/02/2016 |
| 12 | West | Mar | 5 | 2016 | 225 | 3/03/2016 |
+----------+-------+------------+----------+-----------+---------+------------+
LineItems Table:
+----------+-------+------------+----------+-----------+---------+-----+
| ClientID | Tour | EventMonth | EventDay | EventYear | MerchId | Qty |
+----------+-------+------------+----------+-----------+---------+-----+
| 12 | South | Feb | 20 | 2016 | 20 | 1 |
+----------+-------+------------+----------+-----------+---------+-----+
Merchandise Table:
+---------+----------+------------+-------+
| MerchID | Category | ProdName | Price |
+---------+----------+------------+-------+
| 20 | A | Highway | 85 |
+---------+----------+------------+-------+
Any help would be muchly appreciated
You can use join:
SELECT b.*, m.*, b.totalspent + c.totalspent
FROM (SELECT CLIENTID, SUM(FEE) AS TotalSpent
FROM BOOKINGS2017
GROUP BY CLIENTID
) b JOIN
(SELECT L.CLIENTID, SUM(M.PRICE * L.QUANTITY) AS TotalSpent
FROM LINEITEM2017 L JOIN
MERCHANDISE2017 M
ON L.MERCHID = M.MERCHID
GROUP BY L.CLIENTID
) m
USING (CLIENTID);
You may need an outer join if the tables have different sets of clients.
This is essentially the same as Gordon's answer but with your sample data inline and a grand total:
-- Your sample data:
with bookings (clientid, tour, eventmonth, eventday, eventyear, payment, datebooked ) as
( select 12, 'South', 'Feb', 20, 2016, 225, date '2016-02-19' from dual union all
select 12, 'West', 'Mar', 5, 2016, 225, date '2016-03-03' from dual union all
select 2, 'West', 'Mar', 5, 2016, 225, date '2016-03-03' from dual union all
select 2, 'West', 'Mar', 6, 2017, 225, date '2016-03-03' from dual union all
select 2, 'West', 'Mar', 7, 2018, 225, date '2016-03-03' from dual )
, lineitems (clientid, tour, eventmonth, eventday, eventyear, merchid, quantity) as
( select 12, 'South', 'Feb', 20, 2016, 20, 1 from dual )
, merchandise (merchid, category, prodname, price) as
( select 20, 'A', 'Highway', 85 from dual )
--
-- Actual query starts here
--
select b.clientid
, bookings_total
, coalesce(merchandise_total,0) as merchandise_total
, bookings_total + coalesce(merchandise_total,0) as grand_total
from ( select clientid, sum(payment) as bookings_total
from bookings
group by clientid ) b
left join
( select l.clientid, sum(l.quantity * m.price) as merchandise_total
from lineitems l
join merchandise m on m.merchid = l.merchid
group by clientid ) lm
on lm.clientid = b.clientid;
CLIENTID BOOKINGS_TOTAL MERCHANDISE_TOTAL GRAND_TOTAL
-------- -------------- ----------------- -----------
12 450 85 535
2 675 0 675

Check if a month is skipped then add values dynamically?

I have a set of data from a table that would only be populated if a user has data for a certain month just like this:
Month | MonthName | Value
3 | March | 136.00
4 | April | 306.00
7 | July | 476.00
12 | December | 510.48
But what I need is to check if a month is skipped then adding the value the month before so the end result would be like this:
Month | MonthName | Value
3 | March | 136.00
4 | April | 306.00
5 | May | 306.00 -- added data
6 | June | 306.00 -- added data
7 | July | 476.00
8 | August | 476.00 -- added data
9 | September | 476.00 -- added data
10 | October | 476.00 -- added data
11 | November | 476.00 -- added data
12 | December | 510.48
How can I do this dynamically on SQL Server?
One method is a recursive CTE:
with cte as (
select month, value, lead(month) over (order by month) as next_month
from t
union all
select month + 1, value, next_month
from cte
where month + 1 < next_month
)
select month, datename(month, datefromparts(2020, month, 1)) as monthname, value
from cte
order by month;
Here is a db<>fiddle.
you can use spt_values to get continuous number 1-12, and then left join your table by max(month)
select t1.month
,datename(month,datefromparts(2020, t1.month, 1)) monthname
,t2.value
from (
select top 12 number + 1 as month from master..spt_values
where type = 'p'
) t1
left join t t2 on t2.month = (select max(month) from t tmp where tmp.month < = t1.month)
where t2.month is not null
CREATE TABLE T
([Month] int, [MonthName] varchar(8), [Value] numeric)
;
INSERT INTO T
([Month], [MonthName], [Value])
VALUES
(3, 'March', 136.00),
(4, 'April', 306.00),
(7, 'July', 476.00),
(12, 'December', 510.48)
;
Demo Link SQL Server 2012 | db<>fiddle
note
if you have year column then you need to fix the script.

Display data for all date ranges including missing dates

I'm having a issue with dates. I have a table with given from and to dates for an employee. For an evaluation, I'd like to display each date of the month with corresponding values from the second sql table.
SQL Table:
EmpNr | datefrom | dateto | hours
0815 | 01.01.2019 | 03.01.2019 | 15
0815 | 05.01.2019 | 15.01.2019 | 15
0815 | 20.01.2019 | 31.12.9999 | 40
The given employee (0815) worked during 01.01.-15.01. 15 hours, and during 20.01.-31.01. 40 hours
I'd like to have the following result:
0815 | 01.01.2019 | 15
0815 | 02.01.2019 | 15
0815 | 03.01.2019 | 15
0815 | 04.01.2019 | NULL
0815 | 05.01.2019 | 15
...
0815 | 15.01.2019 | 15
0815 | 16.01.2019 | NULL
0815 | 17.01.2019 | NULL
0815 | 18.01.2019 | NULL
0815 | 19.01.2019 | NULL
0815 | 20.01.2019 | 40
0815 | 21.01.2019 | 40
...
0815 | 31.01.2019 | 40
as for the dates, we have:
declare #year int = 2019, #month int = 1;
WITH numbers
as
(
Select 1 as value
UNion ALL
Select value + 1 from numbers
where value + 1 <= Day(EOMONTH(datefromparts(#year,#month,1)))
)
SELECT b.empnr, b.hours, datefromparts(#year,#month,numbers.value) Datum FROM numbers left outer join
emptbl b on b.empnr = '0815' and (datefromparts(#year,#month,numbers.value) >= b.datefrom and datefromparts(#year,#month,numbers.value) <= case b.dateto )
which is working quite well, yet I have the odd issue, that this code is only shoes the dates between 01.01.2019 and 03.01.2019
thank you very much in advance!
Did you check, if datefrom and dateto is in correct range?
Minimum value of DateTime field is 1753-01-01 and maximum value is 9999-12-31.
Look at your source table to check initial values.
The recursive CTE needs to begin with MIN(datefrom) and MAX(dateto):
DECLARE #t TABLE (empnr INT, datefrom DATE, dateto DATE, hours INT);
INSERT INTO #t VALUES
(815, '2019-01-01', '2019-01-03', 15),
(815, '2019-01-05', '2019-01-15', 15),
(815, '2019-01-20', '9999-01-01', 40),
-- another employee
(999, '2018-01-01', '2018-01-31', 15),
(999, '2018-03-01', '2018-03-31', 15),
(999, '2018-12-01', '9999-01-01', 40);
WITH rcte AS (
SELECT empnr
, MIN(datefrom) AS refdate
, ISNULL(NULLIF(MAX(dateto), '9999-01-01'), CURRENT_TIMESTAMP) AS maxdate -- clamp year 9999 to today
FROM #t
GROUP BY empnr
UNION ALL
SELECT empnr
, DATEADD(DAY, 1, refdate)
, maxdate
FROM rcte
WHERE refdate < maxdate
)
SELECT rcte.empnr
, rcte.refdate
, t.hours
FROM rcte
LEFT JOIN #t AS t ON rcte.empnr = t.empnr AND rcte.refdate BETWEEN t.datefrom AND t.dateto
ORDER BY rcte.empnr, rcte.refdate
OPTION (MAXRECURSION 1000) -- approx 3 years
Demo on db<>fiddle
It could be in your select, try:
SELECT b.empnr, b.hours, datefromparts(#year,#month,numbers.value) Datum
FROM numbers
LEFT OUTER JOIN emptbl b ON b.empnr = '0815' AND
datefromparts(#year,#month,numbers.value) BETWEEN b.datefrom AND b.dateto
Your CTE produces only 31 number and therefore it is showing only January dates.
declare #year int = 2019, #month int = 1;
WITH numbers
as
(
Select 1 as value
UNion ALL
Select value + 1 from numbers
where value + 1 <= Day(EOMONTH(datefromparts(#year,#month,1)))
)
SELECT *
FROM numbers
https://dbfiddle.uk/?rdbms=sqlserver_2017&fiddle=a24e58ef4ce522d3ec914f90907a0a9e
You can try below code,
with t0 (i) as (select 0 union all select 0 union all select 0),
t1 (i) as (select a.i from t0 a ,t0 b ),
t2 (i) as (select a.i from t1 a ,t1 b ),
t3 (srno) as (select row_number()over(order by a.i) from t2 a ,t2 b ),
tbldt(dt) as (select dateadd(day,t3.srno-1,'01/01/2019') from t3)
select tbldt.dt
from tbldt
where tbldt.dt <= b.dateto -- put your condition here
https://dbfiddle.uk/?rdbms=sqlserver_2017&fiddle=b16469908b323b8d1b98d77dd09bab3d

SQL - running total when data already grouped

I am trying to do a running total for some data, and have seen the easy way to do it. However, I have already grouped some data and this is throwing off my code. I currently have dates and payment types, and the totals that it relates to.
What I have at the moment is:
create table #testdata
(
mdate date,
pmttype varchar(64),
totalpmtamt int
)
insert into #testdata
select getdate()-7, 'DD', 10
union
select getdate() -7, 'SO', 12
union
select getdate()-6, 'DD', 3
union
select getdate()-5, 'DD', 13
union
select getdate()-5, 'SO', 23
union
select getdate()-5, 'PO', 8
What I want to have is:
mdate | paymenttype | totalpmtamt | incrtotal
2016-08-29 | DD | 10 | 10
2016-08-29 | SO | 12 | 22
2016-08-30 | DD | 3 | 25
2016-08-31 | DD | 13 | 38
2016-08-31 | SO | 8 | 46
2016-08-31 | PO | 23 | 69
I've tried adapting other code I've found here into:
select t1.mdate,
t1.pmttype,
t1.totalpmtamt,
SUM(t2.totalpmtamt) as runningsum
from #testdata t1
join #testdata t2 on t1.mdate >= t2.mdate and t1.pmttype >= t2.pmttype
group by t1.mdate, t1.pmttype, t1.totalpmtamt
order by t1.mdate
but all I get is
mdate | paymenttype | totalpmtamt | incrtotal
2016-08-29 | DD | 10 | 10
2016-08-29 | SO | 12 | 22
2016-08-30 | DD | 3 | 13
2016-08-31 | DD | 13 | 26
2016-08-31 | SO | 8 | 34
2016-08-31 | PO | 23 | 69
Can anyone help please?
The ANSI standard way of doing a cumulative sum is:
select t.*, sum(totalpmtamt) over (order by mdate) as runningsum
from #testdata t
order by t.mdate;
Not all databases support this functionality.
If your database doesn't support that functionality, I would go for a correlated subquery:
select t.*,
(select sum(t2.totalpmtamt)
from #testdata t2
where t2.mdate <= t.mdate
) as runningsum
from #testdata
order by t.mdate;
Use the below query for the desired result (for SQL Server).
with cte_1
as
(SELECT *,ROW_NUMBER() OVER(order by mdate ) RNO
FROM #testdata)
SELECT mdate,pmttype,totalpmtamt,(select sum(c2.totalpmtamt)
from cte_1 c2
where c2.RNO <= c1.RNO
) as incrtotal
FROM cte_1 c1
Output :
Sounds like SQL Server.
DECLARE #testdata TABLE
(
mdate DATE ,
pmttype VARCHAR(64) ,
totalpmtamt INT
);
INSERT INTO #testdata
( mdate, pmttype, totalpmtamt )
VALUES ( GETDATE() - 7, 'DD', 10 ),
( GETDATE() - 7, 'SO', 12 ),
( GETDATE() - 6, 'DD', 3 ),
( GETDATE() - 5, 'DD', 13 ),
( GETDATE() - 5, 'SO', 23 ),
( GETDATE() - 5, 'PO', 8 );
SELECT *,
SUM(totalpmtamt) OVER ( ORDER BY mdate ROWS UNBOUNDED PRECEDING )
AS RunningTotal
FROM #testdata t;

Three column SQL PIVOT

How do I do a sql pivot of data that looks like this, USING the SQL PIVOT command ?
id | field | value
---------------------------------------
1 | year | 2011
1 | month | August
2 | year | 2009
1 | day | 21
2 | day | 31
2 | month | July
3 | year | 2010
3 | month | January
3 | day | NULL
Into something that looks like this:
id | year | month | day
-----------------------------
1 2011 August 21
2 2010 July 31
3 2009 January NULL
Try something like this:
DECLARE #myTable AS TABLE([ID] INT, [Field] VARCHAR(20), [Value] VARCHAR(20))
INSERT INTO #myTable VALUES ('1', 'year', '2011')
INSERT INTO #myTable VALUES ('1', 'month', 'August')
INSERT INTO #myTable VALUES ('2', 'year', '2009')
INSERT INTO #myTable VALUES ('1', 'day', '21')
INSERT INTO #myTable VALUES ('2', 'day', '31')
INSERT INTO #myTable VALUES ('2', 'month', 'July')
INSERT INTO #myTable VALUES ('3', 'year', '2010')
INSERT INTO #myTable VALUES ('3', 'month', 'January')
INSERT INTO #myTable VALUES ('3', 'day', NULL)
SELECT [ID], [year], [month], [day]
FROM
(
SELECT [ID], [Field], [Value] FROM #myTable
) t
PIVOT
(
MIN([Value]) FOR [Field] IN ([year], [month], [day])
) AS pvt
ORDER BY pvt.[year] DESC
Which will yield results of:
ID year month day
1 2011 August 21
3 2010 January NULL
2 2009 July 31
;WITH DATA(id,field,value) AS
(
SELECT 1,'year','2011' UNION ALL
SELECT 1,'month','August' UNION ALL
SELECT 2,'year','2009' UNION ALL
SELECT 1,'day ','21' UNION ALL
SELECT 2,'day ','31' UNION ALL
SELECT 2,'month','July' UNION ALL
SELECT 3,'year','2010' UNION ALL
SELECT 3,'month','January' UNION ALL
SELECT 3,'day ',NULL
)
SELECT id,
year,
month,
day
FROM DATA PIVOT (MAX(value) FOR field IN ([year], [month], [day])) AS Pvt
SELECT
id,
MAX(CASE WHEN RK=3 THEN VAL ELSE '' END) AS "YEAR",
MAX(CASE WHEN RK=2 THEN VAL ELSE '' END) AS "MONTH",
MAX(CASE WHEN RK=1 THEN VAL ELSE '' END) AS "DAY"
FROM
(
SELect
ID,
ROW_NUMBER() OVER(PARTITION BY ID ORDER BY YEAR1 ASC) RK,
VAL
FROM TEST3)A
GROUP BY 1
ORDER BY 1;