I work with SQL Server 2012 and I face an issue: I can't get all different values feature on one row result, separated by sticky if it multiple difference.
If only one is different, then no need stick.
I actually need to display feature value for part C and part X, where feature value for C is not equal to X and both are not equal to Null.
It will display on one row separated by stick if multiple differences.
So how can I do that?
create table #replace
(
PartIdc int,
PartIdx int,
)
insert into #replace (PartIdc, PartIdx)
values (1211, 1300), (2000, 2200), (3000, 3100),
(4150, 4200)
create table #FeatureNameandValues
(
PartId int,
FeatueName nvarchar(20),
FeaatureValue int
)
insert into #FeatureNameandValues (PartId, FeatueName, FeaatureValue)
values (1211, 'Weight', 5), (2000, 'Tall', 20),
(3000, 'Weight', 70), (4150, 'Tall', 190),
(1211, 'Tall', 80), (1300, 'Weight', 10),
(3100, 'Size', 150), (4200, 'Tall', 130),
(1300, 'Tall', 20)
Final result:
DifferentFeatures
Tall (80-20) | Weight(5-10) | Tall(190-130)
Attached file explain :
http://www.mediafire.com/file/mxyr8wr9k98za7o/ExplainReport.xlsx/file
you can use stuff for do that like below
;With cte As
(Select f1.PartId, f1.FeatueName,
f1.FeatueName + ' (' + Cast(f1.FeaatureValue As varchar(10)) + '-' + Cast(f2.FeaatureValue As varchar(10)) + ')' As ValueRange
From #FeatureNameandValues f1
Inner Join #replace r On f1.PartId = r.PartIdc
Inner Join #FeatureNameandValues f2 On f2.PartId = r.PartIdx And f1.FeatueName = f2.FeatueName)
Select Stuff(
(Select ' | ' + ValueRange From cte Order By PartId, FeatueName
For XML Path(''),Type)
.value('text()[1]','varchar(max)'),1,3,'');
Related
I'm having some issues with two queries to search in a "tree" table.
So, my table is represented by the following code, and it has one only direction. However, I need to get data in both directions, ascending and descending mode.
create table graph_examle (input int null, output int );
insert into graph_examle (input, output) values
(null, 1),
(1, 2),
(2, 3 ),
(3, 4 ),
(null, 7 ),
(7,8),
(8, 4 ),
(null, 10 ),
(10, 11 ),
(11, 4),
(3, 15),
(25, 15),
(26, 15),
(15, 4 );
The ascending query has some issues. If I search by id 1, I'm expecting to see the relations:
1, 1->2, 1->2->3, 1->2->3->4, but the results are:
WITH recursive cte (initial_id, level, path, loop, input, output) AS
(
SELECT input, 1, ':' ||input || ':' , 0, input, output
FROM graph_examle WHERE input = 1
UNION ALL
SELECT
c.initial_id,
c.level + 1,
c.path ||ur.input|| ':' ,
CASE WHEN c.path LIKE '%:' ||ur.input || ':%' THEN 1 ELSE 0 END,
ur.*
FROM graph_examle ur
INNER JOIN cte c ON c.output = ur.input AND c.loop = 0
)
SELECT *
FROM cte
ORDER BY initial_id, level;
The descending query does not work as expected. If I search by id 4, I'm expecting to see the relations:
4, 4->3, 4->3->2, 4->3->2->1
4->8, 4->8->7
4->11,4->11>10
4->15, (...)
But I'm only getting:
WITH RECURSIVE cte (input, output, level, real_parent_id, path) AS
(
SELECT
ur.input, ur.input, 1, output, ( ur.input|| ' -> ' || ur.output)
FROM graph_examle ur
WHERE ur.output = 4
UNION ALL
SELECT
ur_cte.input, ur.input, level + 1, ur.output, (ur_cte.path || '->' || ur.output)
FROM cte ur_cte
INNER JOIN graph_examle ur on ur.input = ur_cte.real_parent_id
)
SELECT *
FROM cte
ORDER BY path
Note that in my queries I'm trying to solve circular dependencies
The ascending query sounds good ... maybe you can concatenate the path and output columns.
For the descending query, you can try this :
WITH RECURSIVE cte (input, output, level, path, loop) AS
(
SELECT
ur.input, ur.output, 1, ( ur.output|| ' -> ' || ur.input), 0
FROM graph_examle ur
WHERE ur.output = 4
UNION ALL
SELECT
ur.input, ur_cte.output, level + 1, (ur_cte.path || '->' || ur.input),
CASE WHEN ur_cte.path LIKE '%->' || ur.input THEN 1 ELSE 0 END
FROM cte ur_cte
INNER JOIN graph_examle ur on ur.output = ur_cte.input
WHERE ur_cte.loop = 0
AND ur.input IS NOT NULL
)
SELECT *
FROM cte
ORDER BY path
see dbfiddle
I work with SQL Server 2012 and face an issue: I can't display Text Unit only one time where it repeated for feature using Stuff.
What I need is when Text Unit is repeated for same feature, then no need to repeat it - only display it once.
In my case, I face issue that I can't prevent repeat Text Unit when It be same Text Unit for same Feature.
Voltage | Voltage | Voltage ONLY one Voltage display .
CREATE TABLE #FinalTable
(
PartID INT,
DKFeatureName NVARCHAR(100),
TextUnit NVARCHAR(100),
StatusId INT
)
INSERT INTO #FinalTable (PartID, DKFeatureName, TextUnit, StatusId)
VALUES
(1211, 'PowerSupply', 'Voltage', 3),
(1211, 'PowerSupply', 'Voltage', 3),
(1211, 'PowerSupply', 'Voltage', 3)
SELECT
PartID, DKFeatureName,
COUNT(PartID) AS CountParts,
TextUnit = STUFF ((SELECT ' | ' + TextUnit
FROM #FinalTable b
WHERE b.PartID = a.PartID
AND a.DKFeatureName = b.DKFeatureName
AND StatusId = 3
FOR XML PATH('')), 1, 2, ' ')
INTO
#getUnitsSticky
FROM
#FinalTable a
GROUP BY
PartID, DKFeatureName
HAVING
(COUNT(PartID) > 1)
SELECT *
FROM #getUnitsSticky
Expected result is :
Voltage
Incorrect result or result I don't need is as below :
Voltage|Voltage|Voltage
TomC's answer is basically correct. However, when using this method with SQL Server, it is usually more efficient to get the rows in a subquery and then use stuff() in the outer query. That way, the values in each row are processed only once.
So:
SELECT PartID, DKFeatureName, CountParts,
STUFF( (SELECT ' | ' + TextUnit
FROM #FinalTable b
WHERE b.PartID = a.PartID AND
b.DKFeatureName = a.DKFeatureName AND
StatusId = 3
FOR XML PATH('')
), 1, 3, ' ') as TextUnit
INTO #getUnitsSticky
FROM (SELECT PartID, DKFeatureName, COUNT(*) as CountParts
FROM #FinalTable a
GROUP BY PartID, DKFeatureName
HAVING COUNT(*) > 1
) a;
This also removes the leading space from the concatenated result.
To put this into a complete answer - this should be your SQL (shortened slightly and removed the last temp table):
SELECT
PartID, DKFeatureName,
COUNT(PartID) AS CountParts,
TextUnit = STUFF ((SELECT distinct ' | ' + TextUnit
FROM #FinalTable b
WHERE b.PartID = a.PartID
AND a.DKFeatureName = b.DKFeatureName
AND StatusId = 3
FOR XML PATH('')), 1, 2, ' ')
FROM #FinalTable a
GROUP BY PartID, DKFeatureName
HAVING (COUNT(PartID) > 1)
I have the following Tables with the following data:
CREATE TABLE TestSource (
InstrumentID int,
ProviderID int,
KPI1 int,
Col2 varchar(255),
KPI3 int
);
CREATE TABLE TestTarget (
InstrumentID int,
ProviderID int,
KPI1 int,
Col2 varchar(255),
KPI3 int
);
INSERT INTO TestSource (InstrumentID,ProviderID,KPI1,Col2,KPI3)
VALUES (123, 27, 1, 'ABC', 10.0 ),
(1234, 27, 2, 'DEF', 10.0 ),
(345, 27, 1, NULL, 0.00 );
INSERT INTO TestTarget (InstrumentID,ProviderID,KPI1,Col2,KPI3)
VALUES (123, 27, 1, 'ABC', 10.0 ),
(1234, 27, 2, 'DEF', 10.0 ),
(345, 27, 1, 'ABC', 0.0 );
I'm trying to compare the values between tables. Here's the query logic I am currently using:
DECLARE #Result NVARCHAR(max)
;WITH
compare_source (InstrumentID,ProviderID,
/*** Source columns to compare ***/
Col1Source, Col2Source,Col3Source
)
as (
select InstrumentID
,ProviderID
,KPI1
--,ISNULL(Col2,'NA') as Col2
,Col2
,KPI3
from TestSource
group by
InstrumentID
,ProviderID
,KPI1
,Col2
,KPI3
),
compare_target (InstrumentID,ProviderID,
/*** Target columns to compare ***/
Col1Target,Col2Target,Col3Target
)
as
(
select
InstrumentID
,ProviderID
,KPI1
--,1
,Col2
,KPI3
from TestTarget
group by
InstrumentID
,ProviderID
,KPI1
,Col2
,KPI3
)
SELECT #Result = STRING_AGG ('InstrumentID = ' + CONVERT(VARCHAR,InstrumentID)
+ ', Col1: ' + CONVERT(VARCHAR,Col1Source) + ' vs ' + CONVERT(VARCHAR,Col1Target)
+ ', Col2: ' + CONVERT(VARCHAR,Col2Source) + ' vs ' + CONVERT(VARCHAR,Col2Target)
+ ', Col3: ' + CONVERT(VARCHAR,Col3Source) + ' vs ' + CONVERT(VARCHAR,Col3Target)
, CHAR(13) + CHAR(10)
)
FROM
(
select
s.InstrumentID
,s.Col1Source
,t.Col1Target
,s.Col2Source
,t.Col2Target
,s.Col3Source
,t.Col3Target
from compare_source s
left join compare_target t on t.InstrumentID = s.InstrumentID and t.ProviderID = s.ProviderID
where not exists
(
select 1 from compare_target t where
s.InstrumentID = t.InstrumentID AND
( s.Col1Source = t.Col1Target ) OR (ISNULL(s.Col1Source, t.Col1Target) IS NULL) AND
( s.Col2Source = t.Col2Target ) OR (ISNULL(s.Col2Source, t.Col2Target) IS NULL) AND
( s.Col3Source = t.Col3Target ) OR (ISNULL(s.Col3Source, t.Col3Target) IS NULL)
)
) diff
PRINT #Result
When there are no NULL values in my tables, the comparison works well. However, as soon as I attempt to insert NULLs in either of the tables, my comparison logic breaks down and does not account for the differences between tables values.
I know that I could easily do an ISNULL on my columns in my individual selects, however, I'd like to keep it as generic as possible and to only do my comparison checks and NULL checks in my final NOT EXISTS comparison WHERE clause.
I've also tried the following logic in my comparison logic without success:
(
select 1 from compare_target t where
s.InstrumentID = t.InstrumentID AND
( s.Col1Source = t.Col1Target OR (s.Col1Source IS NULL AND t.Col1Target IS NULL) ) AND
( s.Col2Source = t.Col2Target OR (s.Col2Source IS NULL AND t.Col2Target IS NULL) ) AND
( s.Col3Source = t.Col3Target OR (s.Col3Source IS NULL AND t.Col3Target IS NULL) )
)
Another issue I am having is that my query cannot distinguish between data formats (for example, it sees the value 0.00 as equivalent to 0.0)
I'm not totally certain as to what I am missing.
Any help to put me on the right path would be great.
Well the two problems I see are this:
The WHERE clause at the bottom needs to have extra parenthesis to combine your ORs with your ANDs so that the order of precedence is correct:
select 1 from compare_target t where
s.InstrumentID = t.InstrumentID AND
(( s.Col1Source = t.Col1Target ) OR (ISNULL(s.Col1Source, t.Col1Target) IS NULL)) AND
(( s.Col2Source = t.Col2Target ) OR (ISNULL(s.Col2Source, t.Col2Target) IS NULL)) AND
(( s.Col3Source = t.Col3Target ) OR (ISNULL(s.Col3Source, t.Col3Target) IS NULL))
When you make that change the one row that is returned has a NULL value in the Col2Source column. So when you try and build the string that you are sending to STRING_AGG it has a NULL in the middle of it. So the entire string will be NULL. So you will need to use ISNULL in either the subquery in your FROM clause or within the STRING_AGG()....or is suppose right where you had it commented out.
I am using PostgreSQL through Npgsql driver for windows/NET and I see that it is possible to use PL/pgSQL language through it.
So that way I can make use of variables for my calculation scripts which may look like in this example:
DO $$
DECLARE
tlist text='mylistofbills';
tcontent text='mycontentofbills';
BEGIN
CREATE TEMP TABLE tlist
(billno integer, bdate timestamp, rebate double precision)
ON COMMIT DROP;
INSERT INTO tlist
VALUES (1, '10.01.2017. 10:14:56', 10),
(2, '10.01.2017. 11:02:13', 5),
(3, '10.01.2017. 11:45:22', 0),
(4, '10.01.2017. 12:01:01', 6);
CREATE TEMP TABLE tcontent
(billno integer, rowno integer, price double precision, tax double precision)
ON COMMIT DROP;
INSERT INTO tcontent
VALUES (1, 1, 100, 19),
(1, 2, 30, 0),
(2, 1, 20, 19),
(3, 1, 18, 19),
(4, 1, 43, 0);
END $$;
SELECT s.price,
l.rebate,
s.price/100*l.rebate AS valrebate,
s.price-(s.price/100*l.rebate) AS worebate,
((s.price-(s.price/100*l.rebate))/100)*s.tax AS valtax,
s.price-(s.price/100*l.rebate)+(((s.price-(s.price/100*l.rebate))/100)*s.tax) AS finalprice
FROM tlist l, tcontent s
WHERE l.billno=s.billno;
Example is simplified (from real situation) and is suitable for pasting into PgAdmin's SQL editor.
So, now is question: Can I somehow in the body of those code, without adding new functions to server use formulas for writing more elegant and readable code?
If I would be able to add simple formulas like:
rebatec=s.price/100*l.rebate
priceworebate=s.price-rebatec
Then my code may look more readable and less error prone.
Like this:
SELECT s.price,
l.rebate,
rebatec AS valrebate,
priceworebate AS worebate,
(priceworebate/100)*s.tax AS valtax,
priceworebate+((priceworebate/100)*s.tax) AS finalprice
FROM tlist l, tcontent s
WHERE l.billno=s.billno;
If that may be possible where and how to put this formulas so it can be used in my last SELECT code?
SOLUTION:
Based on #Clodoaldo's answer which give something new to me I find a solution which I am able to understand:
SELECT s.price,
l.rebate,
rebatec AS valrebate,
priceworebate AS worebate,
priceworebate/100*s.tax AS valtax,
priceworebate+priceworebate/100*s.tax AS finalprice
FROM tlist l, tcontent s, LATERAL
(SELECT s.price/100*l.rebate AS rebatec,
s.price-s.price/100* l.rebate AS priceworebate
)sub
WHERE l.billno=s.billno;
It works and I hope it is technically correct.
Use lateral:
The LATERAL key word can precede a sub-SELECT FROM item. This allows the sub-SELECT to refer to columns of FROM items that appear before it in the FROM list.
select
s.price,
l.rebate,
rebatec as valrebate,
priceworebate as worebate,
priceworebate / 100 * s.tax as valtax,
priceworebate + priceworebate / 100 * s.tax as finalprice
from
tlist l
inner join
tcontent s using (billno)
cross join lateral (
select
s.price / 100 * l.rebate as rebatec,
s.price - s.price / 100 * l.rebate as priceworebate
) cjl
Use the modern join syntax.
You could use a subquery to define those variables:
select var1 * col3
from (
select col1 / col2 as var1
, *
from YourTable
) sub
Or alternatively a common table expression:
with cte as
(
select col1 / col2 as var1
, *
from YourTable
)
select var1 * col3
from cte
I have a table in with the following layout:
CREATE TABLE dbo.tbl (
Ten_Ref VARCHAR(20) NOT NULL,
Benefit VARCHAR(20) NOT NULL
);
INSERT INTO dbo.tbl (Ten_Ref, Benefit)
VALUES ('1', 'HB'),
('1', 'WTC'),
('1', 'CB'),
('2', 'CB'),
('2', 'HB'),
('3', 'WTC');
I then run this code to perform a transform and concatenation (I need all the benefit information in one field'
with [pivot] as
(
SELECT Ten_Ref
,[HB] = (Select Benefit FROM tbl WHERE t.Ten_Ref = Ten_Ref and Benefit = 'HB')
,[CB] = (Select Benefit FROM tbl WHERE t.Ten_Ref = Ten_Ref and Benefit = 'CB')
,[WTC] = (Select Benefit FROM tbl WHERE t.Ten_Ref = Ten_Ref and Benefit = 'WTC')
/*Plus 7 more of these*/
FROM tbl as t
GROUP BY Ten_Ref
)
select p.ten_Ref
/*A concatenation to put them all in one field, only problem is you end up with loads of spare commas*/
,[String] = isnull (p.HB,0) + ',' + isnull (p.cb,'') + ',' + isnull (p.wtc,'')
from [pivot] as p
My problem is not every ten_ref has all of the Benefits attached.
Using this code, where there is a gap or NULL then I end up with loads of double commas e.g 'HB,,WTC'
How can I get it so it is only one comma, regardless of the amount of benefits each tenancy has?
Are you looking for something like this?
SELECT A.Ten_Ref,
STUFF(CA.list,1,1,'') list
FROM tbl A
CROSS APPLY(
SELECT ',' + Benefit
FROM tbl B
WHERE A.Ten_Ref = B.Ten_Ref
ORDER BY Benefit
FOR XML PATH('')
) CA(list)
GROUP BY A.ten_ref,CA.list
Results:
Ten_Ref list
-------------------- ------------------
1 CB,HB,WTC
2 CB,HB
3 WTC
Or if you really want to use pivot and manually concatenate, you could do this:
SELECT Ten_Ref,
--pvt.*,
ISNULL(HB + ',','') + ISNULL(CB + ',','') + ISNULL(WTC + ',','') AS list
FROM tbl
PIVOT
(
MAX(Benefit) FOR Benefit IN([HB],[CB],[WTC])
) pvt