About SQL pivot query - sql

This is static pivot query:
SELECT
*
FROM
(SELECT
PI.PRODID||' '||' ('||PI.PRODNAME||' - '||PI.PACKSIZE||')' PNAME,I.SIA_ID, IP.SALES_QTY
FROM
DIS_INVOICE_INFO I, DIS_INVOICE_PRODUCT IP, MKT_PROD_INFO PI
WHERE
I.SLNO = IP.SLNO
AND PI.PRODID = IP.PRODID) s
PIVOT
(SUM(SALES_QTY)
FOR SIA_ID IN (10080, 10084, 10082)
) pvt
But I want a dynamic query.
Like:
......
PIVOT
(SUM(SALES_QTY)
FOR SIA_ID IN (SELECT DISTINCT SIA_ID FROM DIS_INVOICE_INFO)
) pvt

You didn't mention about your DBMS, I don't know for the other DBMS systems but for Oracle you may make it dynamic provided you're producing XML results as in the following case :
SELECT
*
FROM
(SELECT PI.PRODID||' '||' ('||PI.PRODNAME||' - '||PI.PACKSIZE||')' PNAME,
I.SIA_ID, IP.SALES_QTY
FROM DIS_INVOICE_INFO I
INNER JOIN DIS_INVOICE_PRODUCT IP
ON (I.SLNO = IP.SLNO)
INNER JOIN MKT_PROD_INFO PI
ON (PI.PRODID = IP.PRODID)) s
PIVOT XML
(SUM(SALES_QTY)
FOR SIA_ID IN (SELECT DISTINCT SIA_ID FROM DIS_INVOICE_INFO)
) pvt;
By using the following DDL statements ;
create table DIS_INVOICE_INFO(SIA_ID int, SLNO int);
create table DIS_INVOICE_PRODUCT(PRODID int, SALES_QTY int, SLNO int);
create table MKT_PROD_INFO(PRODID int,PRODNAME varchar(90),PACKSIZE int);
insert all
into DIS_INVOICE_INFO values(10080,1);
into DIS_INVOICE_PRODUCT values(1,100,1);
into MKT_PROD_INFO values(1,'Milk',200);
select * from dual;
You get the following results for the above SQL-Select statement :
PNAME SIA_ID_XML
------------ ----------
(Milk - 200) <CLOB>
where <CLOB> is
<PivotSet><item><column name = "SIA_ID">10080</column>
<column name = "SUM(SALES_QTY)">100</column></item></PivotSet>
P.s. You cannot use PIVOT dynamically without XML option, I mean need to list all arguments explicitly within IN clause as in your case.

Related

SQL merging rows with dynamic column headings

I am trying to populate a Gridview to have checkboxes enabled per student, but depending to certain values from this query:
#SelectedDate is provided via a TextBox as a date only
SELECT v1.StudentID,
v1.StudentPreferredName + ' ' + v1.StudentFamilyName AS StudentName,
bcs.CheckStatusName,
rce.DateSubmitted,
rcp.RollCallPeriod
FROM tblBoardingRollCallEntries AS rce
INNER JOIN vwBoardingTenants AS v1
ON v1.StudentID = rce.StudentID
AND v1.[Year] = YEAR(#SelectedDate)
INNER JOIN tblBoardingCheckStatus AS bcs
ON bcs.CheckStatusID = rce.CheckStatusID
AND bcs.StatusActive = 1
INNER JOIN tblBoardingRollCallPeriods AS rcp
ON rcp.RollCallPeriodID = rce.RollCallPeriodID
AND rcp.PeriodYear = YEAR(#SelectedDate)
AND #SelectedDate BETWEEN rcp.PeriodStart AND rcp.PeriodEnd
AND rcp.RowStatus = 1
WHERE dbo.fnDateOnly(rce.DateSubmitted) = dbo.fnDateOnly(#SelectedDate)
My gridview:
Shows the following:
The data:
I want to be able to basically condense the rows in the GridView to be one student per row and the checkboxes ticked according to RollCallPeriod text.
I am playing with SQL pivots, to get the data to be as close as possible to what I am after so as to avoid code-behind, etc. However, I cannot get this to work.
select StudentID, [1],[10],[2],[3],[4],[5],[6],[7],[8],[9]
from
(
select StudentID, RollCallID, CheckStatusID
from tblBoardingRollCallEntries
unpivot
(
value for name in ([RollCallID],[StudentID],[CheckStatusID],[DateSubmitted],[StaffID])
) unpiv
) src
pivot
(
sum(RollCallPeriodID)
for RollCallPeriodID in ([1],[10],[2],[3],[4],[5],[6],[7],[8],[9])
) piv
I receive the following error:
Lookup Error - SQL Server Database Error: The type of column
"StudentID" conflicts with the type of other columns specified in the
UNPIVOT list.
Any other ideas?
Thanks
A couple of ways you can do this depending on your actual data.
This will give you the CheckStatusName as the value for the RollCallPeriod
SELECT *
FROM (
SELECT StudentName,
CheckStatusName,
RollCallPeriod
FROM [YourQueryGoesHere]
) t
PIVOT (
MAX(CheckStatusName)
FOR RollCallPeriod IN ([6:15 AM],[8:00 AM],[3:00 PM],[6:00 PM],[9:00 PM])
) p
Or you get the status and a COUNT() to show if that Student has a value for that CheckStatusName, RollCallPeriod
SELECT *
FROM (
SELECT StudentName,
CheckStatusName,
RollCallPeriod
FROM [YourQueryGoesHere]
) t
PIVOT (
COUNT(RollCallPeriod)
FOR RollCallPeriod IN ([6:15 AM],[8:00 AM],[3:00 PM],[6:00 PM],[9:00 PM])
) p
Two options:
Instead of unpivotting directly on tblBoardingRollCallEntries: first select columns cast to a VARCHAR(...) type in a derived table, then UNPIVOT the derived table. Shortened example:
select StudentID, RollCallID, CheckStatusID
from
(
SELECT ..., CAST(StudentId AS VARCHAR(128)) AS StudentId, ... FROM tblBoardingRollCallEntries)
) AS ups
unpivot
(
value for name in ([RollCallID],[StudentID],[CheckStatusID],[DateSubmitted],[StaffID])
) unpiv
Use CROSS APPLY (SELECT CAST(StudentId AS VARCHAR(128)) UNION ALL ... ) to unpivot, that way you can UNPIVOT casting the column directly to the appropriate type.

Unpivoting multiple columns

I have a table in SQL Server 2014 called anotes with the following data
and I want to add this data into another table named final as
ID Notes NoteDate
With text1, text2, text3, text4 going into the Notes column in the final table and Notedate1,notedate2,notedate3,notedate4 going into Notedate column.
I tried unpivoting the data with notes first as:
select createdid, temp
from (select createdid,text1,text2,text3,text4 from anotes) p
unpivot
(temp for note in(text1,text2,text3,text4)) as unpvt
order by createdid
Which gave me proper results:
and then for the dates part I used another unpivot query:
select createdid,temp2
from (select createdid,notedate1,notedate2,notedate3,notedate4 from anotes) p
unpivot (temp2 for notedate in(notedate1,notedate2,notedate3,notedate4)) as unpvt2
which also gives me proper results:
Now I want to add this data into my final table.
and I tried the following query and it results into a cross join :(
select a.createdid, a.temp, b.temp2
from (select createdid, temp
from (select createdid,text1,text2,text3,text4 from anotes) p
unpivot
(temp for note in(text1,text2,text3,text4)) as unpvt) a inner join (select createdid,temp2
from (select createdid,notedate1,notedate2,notedate3,notedate4 from anotes) p
unpivot (temp2 for notedate in(notedate1,notedate2,notedate3,notedate4)) as unpvt) b on a.createdid=b.createdid
The output is as follows:
Is there any way where I can unpivot both the columns at the same time?
Or use two select queries to add that data into my final table?
Thanks in advance!
I would say the most concise, and probably most efficient way to unpivot multiple columns is to use CROSS APPLY along with a table valued constructor:
SELECT t.CreatedID, upvt.Text, upvt.NoteDate
FROM anotes t
CROSS APPLY
(VALUES
(Text1, NoteDate1),
(Text2, NoteDate2),
(Text3, NoteDate3),
(Text4, NoteDate4),
(Text5, NoteDate5),
(Text6, NoteDate6),
(Text7, NoteDate7)
) upvt (Text, NoteDate);
Simplified Example on SQL Fiddle
ADDENDUM
I find the concept quite a hard one to explain, but I'll try. A table valued constuctor is simply a way of defining a table on the fly, so
SELECT *
FROM (VALUES (1, 1), (2, 2)) t (a, b);
Will Create a table with Alias t with data:
a b
------
1 1
2 2
So when you use it inside the APPLY you have access to all the outer columns, so it is just a matter of defining your constructed tables with the correct pairs of values (i.e. text1 with date1).
Used the link above mentioned by #AHiggins
Following is my final query!
select createdid,temp,temp2
from (select createdid,text1,text2,text3,text4,text5,text6,text7,notedate1,notedate2,notedate3,notedate4,notedate5,notedate6,notedate7 from anotes) main
unpivot
(temp for notes in(text1,text2,text3,text4,text5,text6,text7)) notes
unpivot (temp2 for notedate in(notedate1,notedate2,notedate3,notedate4,notedate5,notedate6,notedate7)) Dates
where RIGHT(notes,1)=RIGHT(notedate,1)
Treat each query as a table and join them together based on the createdid and the fieldid (the numeric part of the field name).
select x.createdid, x.textValue, y.dateValue
from
(
select createdid, substring(note, 5, len(note)) fieldId, textValue
from (select createdid,text1,text2,text3,text4 from anotes) p
unpivot
(textValue for note in(text1,text2,text3,text4)) as unpvt
)x
join
(
select createdid, substring(notedate, 9, len(notedate)) fieldId, dateValue
from (select createdid,notedate1,notedate2,notedate3,notedate4 from anotes) p
unpivot (dateValue for notedate in(notedate1,notedate2,notedate3,notedate4)) as unpvt2
) y on x.fieldId = y.fieldId and x.createdid = y.createdid
order by x.createdid, x.fieldId
The other answer given won't work if you have too many columns and the rightmost number of the field name is duplicated (e.g. text1 and text11).

Adding aliasing to field names in Pivot SQL query

I have a query below, and need to have field [Cmp-Goal-RF-148] (which is pivoted to be a column) - I need the column title to be something besides [Cmp-Goal-RF-148], so I suppose I need to alias it. Doing this throws up an error: ([Cmp-Goal-RF-148] AS 'Ghost'). What am I missing?
select *
from
(
select EmpRvwPdDtl.Emp, EmpRvwPdDtl.Rvwr,
EmpRvwPdDtl.RvwItm,
CAST(EmpRvwPdDtl.RvwItmCom as VARCHAR(MAX)) as comment
from EmpRvwPdDtl
inner join EmpRvwPd
on (EmpRvwPd.Emp=EmpRvwPdDtl.Emp)
where EmpRvwPdDtl.RvwItmCom is not null
AND EmpRvwPd.Sup='RM04'
) as s
PIVOT
(
MAX(comment) for RvwItm in ([Cmp-Goal-RF-148])
) as pvit
You will add the alias in the final SELECT list:
select Emp, Rvwr,
[Cmp-Goal-RF-148] as Ghost -- alias goes here
from
(
select EmpRvwPdDtl.Emp, EmpRvwPdDtl.Rvwr,
EmpRvwPdDtl.RvwItm,
CAST(EmpRvwPdDtl.RvwItmCom as VARCHAR(MAX)) as comment
from EmpRvwPdDtl
inner join EmpRvwPd
on (EmpRvwPd.Emp=EmpRvwPdDtl.Emp)
where EmpRvwPdDtl.RvwItmCom is not null
AND EmpRvwPd.Sup='RM04'
) as s
PIVOT
(
MAX(comment) for RvwItm in ([Cmp-Goal-RF-148])
) as pvit

How to show the vertical data horizentally through sql

my table has two column columnname and data
i issue a simple sql like select * from mytable then data is showing like
colname data
------------------- -----------
JID 41185
WID 0
AccountReference LH169
OEReference Ari002
InvoiceNumber 0
but i want to display data in different way like
JID WID AccountReference OEReference InvoiceNumber
41185 0 LH169 Ari002 0
if i need to show data horizentally then what sql i need to issue..........please help.
SQL isn't really about display. The problem you have is that you'd really need 2 queries (1 for colname and 1 for data) with no guarantee the data would be returned in the same order for each query. You really need to wrap some external code around this - save the query results in a 2-d array of string (or a collection etc) then iterate through each
SELECT JID,WID,AccountReference,OEReference,InvoiceNumber
FROM
(
SELECT colname, data FROM YourTableName
)
p
PIVOT
(
Max(data) FOR colname
IN ([JID],[WID],[AccountReference],[OEReference],[InvoiceNumber])
) AS pvt
you can try below links. contains tutorials for the usage of Pivot.
Link1
Link2
If the values of colname are known in advance & unique;
SELECT * FROM tbl
PIVOT (
MAX(data)
FOR colname in ([JID],[WID],[AccountReference],[OEReference],[InvoiceNumber])
) pv
You can find this in my blog:
http://sql-tricks.blogspot.com/2011/04/sql-server-rows-transpose.html
You should change #xml variable like this:
SET #xml = ( SELECT colname,data,
Row_Number() OVER ( ORDER BY ( SELECT 1
) ) Rn
FROM mytable
FOR
XML PATH('Row') ,
ROOT('Root') ,
ELEMENTS XSINIL
) ;

Make SQL Select same row multiple times

I need to test my mail server. How can I make a Select statement
that selects say ID=5469 a thousand times.
If I get your meaning then a very simple way is to cross join on a derived query on a table with more than 1000 rows in it and put a top 1000 on that. This would duplicate your results 1000 times.
EDIT: As an example (This is MSSQL, I don't know if Access is much different)
SELECT
MyTable.*
FROM
MyTable
CROSS JOIN
(
SELECT TOP 1000
*
FROM
sysobjects
) [BigTable]
WHERE
MyTable.ID = 1234
You can use the UNION ALL statement.
Try something like:
SELECT * FROM tablename WHERE ID = 5469
UNION ALL
SELECT * FROM tablename WHERE ID = 5469
You'd have to repeat the SELECT statement a bunch of times but you could write a bit of VB code in Access to create a dynamic SQL statement and then execute it. Not pretty but it should work.
Create a helper table for this purpose:
JUST_NUMBER(NUM INT primary key)
Insert (with the help of some (VB) script) numbers from 1 to N. Then execute this unjoined query:
SELECT MYTABLE.*
FROM MYTABLE,
JUST_NUMBER
WHERE MYTABLE.ID = 5469
AND JUST_NUMBER.NUM <= 1000
Here's a way of using a recursive common table expression to generate some empty rows, then to cross join them back onto your desired row:
declare #myData table (val int) ;
insert #myData values (666),(888),(777) --some dummy data
;with cte as
(
select 100 as a
union all
select a-1 from cte where a>0
--generate 100 rows, the max recursion depth
)
,someRows as
(
select top 1000 0 a from cte,cte x1,cte x2
--xjoin the hundred rows a few times
--to generate 1030301 rows, then select top n rows
)
select m.* from #myData m,someRows where m.val=666
substitute #myData for your real table, and alter the final predicate to suit.
easy way...
This exists only one row into the DB
sku = 52 , description = Skullcandy Inkd Green ,price = 50,00
Try to relate another table in which has no constraint key to the main table
Original Query
SELECT Prod_SKU , Prod_Descr , Prod_Price FROM dbo.TB_Prod WHERE Prod_SKU = N'52'
The Functional Query ...adding a not related table called 'dbo.TB_Labels'
SELECT TOP ('times') Prod_SKU , Prod_Descr , Prod_Price FROM dbo.TB_Prod,dbo.TB_Labels WHERE Prod_SKU = N'52'
In postgres there is a nice function called generate_series. So in postgreSQL it is as simple as:
select information from test_table, generate_series(1, 1000) where id = 5469
In this way, the query is executed 1000 times.
Example for postgreSQL:
CREATE EXTENSION IF NOT EXISTS "uuid-ossp"; --To be able to use function uuid_generate_v4()
--Create a test table
create table test_table (
id serial not null,
uid UUID NOT NULL,
CONSTRAINT uid_pk PRIMARY KEY(id));
-- Insert 10000 rows
insert into test_table (uid)
select uuid_generate_v4() from generate_series(1, 10000);
-- Read the data from id=5469 one thousand times
select id, uid, uuid_generate_v4() from test_table, generate_series(1, 1000) where id = 5469;
As you can see in the result below, the data from uid is read 1000 times as confirmed by the generation of a new uuid at every new row.
id |uid |uuid_generate_v4
----------------------------------------------------------------------------------------
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"5630cd0d-ee47-4d92-9ee3-b373ec04756f"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"ed44b9cb-c57f-4a5b-ac9a-55bd57459c02"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"3428b3e3-3bb2-4e41-b2ca-baa3243024d9"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"7c8faf33-b30c-4bfa-96c8-1313a4f6ce7c"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"b589fd8a-fec2-4971-95e1-283a31443d73"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"8b9ab121-caa4-4015-83f5-0c2911a58640"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"7ef63128-b17c-4188-8056-c99035e16c11"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"5bdc7425-e14c-4c85-a25e-d99b27ae8b9f"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"9bbd260b-8b83-4fa5-9104-6fc3495f68f3"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"c1f759e1-c673-41ef-b009-51fed587353c"
5469|"10791df5-ab72-43b6-b0a5-6b128518e5ee"|"4a70bf2b-ddf5-4c42-9789-5e48e2aec441"
Of course other DBs won't necessarily have the same function but it could be done:
See here.
If your are doing this in sql Server
declare #cnt int
set #cnt = 0
while #cnt < 1000
begin
select '12345'
set #cnt = #cnt + 1
end
select '12345' can be any expression
Repeat rows based on column value of TestTable. First run the Create table and insert statement, then run the following query for the desired result.
This may be another solution:
CREATE TABLE TestTable
(
ID INT IDENTITY(1,1),
Col1 varchar(10),
Repeats INT
)
INSERT INTO TESTTABLE
VALUES ('A',2), ('B',4),('C',1),('D',0)
WITH x AS
(
SELECT TOP (SELECT MAX(Repeats)+1 FROM TestTable) rn = ROW_NUMBER()
OVER (ORDER BY [object_id])
FROM sys.all_columns
ORDER BY [object_id]
)
SELECT * FROM x
CROSS JOIN TestTable AS d
WHERE x.rn <= d.Repeats
ORDER BY Col1;
This trick helped me in my requirement.
here, PRODUCTDETAILS is my Datatable
and orderid is my column.
declare #Req_Rows int = 12
;WITH cte AS
(
SELECT 1 AS Number
UNION ALL
SELECT Number + 1 FROM cte WHERE Number < #Req_Rows
)
SELECT PRODUCTDETAILS.*
FROM cte, PRODUCTDETAILS
WHERE PRODUCTDETAILS.orderid = 3
create table #tmp1 (id int, fld varchar(max))
insert into #tmp1 (id, fld)
values (1,'hello!'),(2,'world'),(3,'nice day!')
select * from #tmp1
go
select * from #tmp1 where id=3
go 1000
drop table #tmp1
in sql server try:
print 'wow'
go 5
output:
Beginning execution loop
wow
wow
wow
wow
wow
Batch execution completed 5 times.
The easy way is to create a table with 1000 rows. Let's call it BigTable. Then you would query for the data you want and join it with the big table, like this:
SELECT MyTable.*
FROM MyTable, BigTable
WHERE MyTable.ID = 5469