I have a table having below data , total 8 rows here sample for 3 rows -
now I transformed the query using case statement to this using below query -
select
case when entity ='PRODUCT' then prd_table_main end P_main_prd ,
case when entity ='PRODUCT' then prd_table_sec end P_sec_prd,
case when entity ='CUSTOMER' then cus_table_main end P_main_cus ,
case when entity ='CUSTOMER' then cus_table_sec end p_sec_cus,
case when entity ='PROFIT' then prof_table_main end p_main_prof ,
case when entity ='PROFIT' then prof_table_sec end p_sec_prof
from (
select * from above table);
Now I want to have the o/p as in one row removing all the nulls. Basically I want to create a cursor and pass the value of tables to be used in the procedure as p_main_prd or p_sec_prd or the remaining ones as the requirement.
You are almost there, you just need to aggeregate:
select MAX( case when entity = 'product' then table1 end ) AS P_main_prd,
MAX( case when entity = 'product' then table2 end ) AS P_sec_prd,
MAX( case when entity = 'customer' then table1 end ) AS P_main_cus,
MAX( case when entity = 'customer' then table2 end ) AS p_sec_cus,
MAX( case when entity = 'profit' then table1 end ) AS p_main_prof,
MAX( case when entity = 'profit' then table2 end ) AS p_sec_prof
from table_name;
or use PIVOT:
SELECT prd_p_main AS p_main_prd,
prd_p_sec AS p_sec_prd,
cus_p_main AS p_main_cus,
cus_p_sec AS p_sec_cus,
prof_p_main AS p_main_prof,
prof_p_sec AS p_sec_prof
FROM table_name
PIVOT (
MAX( table1 ) AS p_main,
MAX( table2 ) AS p_sec
FOR entity IN (
'product' AS prd,
'customer' AS cus,
'profit' AS prof
)
)
Which, for the sample data:
CREATE TABLE table_name ( entity, table1, table2 ) AS
SELECT 'product', 'prd_table_main', 'prd_table_sec' FROM DUAL UNION ALL
SELECT 'customer', 'cus_table_main', 'cus_table_sec' FROM DUAL UNION ALL
SELECT 'profit', 'prof_table_main', 'prof_table_sec' FROM DUAL
Outputs:
P_MAIN_PRD
P_SEC_PRD
P_MAIN_CUS
P_SEC_CUS
P_MAIN_PROF
P_SEC_PROF
prd_table_main
prd_table_sec
cus_table_main
cus_table_sec
prof_table_main
prof_table_sec
db<>fiddle here
Maybe you can try UNPIVOT. I'm not an expert on this, so I can only help you by giving you directions. Check this out, probably this will help you out, or at least show you another way:
Oracle Unpivot
Related
This a dynamic query and it is showing as a table. But I want to ad a column in this query as 'header' as identifier. The dynamic query is below:
SELECT [YR_4]
,[YR_3]
,[YR_2]
,[YR_1]
FROM (
SELECT CASE
WHEN yr = 9999
THEN 'A Medians'
ELSE cast(yr AS VARCHAR(10))
END AS yr
,yrdes
FROM #years2
) AS t
PIVOT(MAX(yr) FOR yrdes IN (
[YR_4]
,[YR_3]
,[YR_2]
,[YR_1]
)) t1
Can somebody help me to add a column with hardcoded value in the above query?
You can have a additional column with hardcoded value as given below:
SELECT [YR_4]
,[YR_3]
,[YR_2]
,[YR_1]
,'Hardcoded_value' AS AdditionalColum -- Code change here
FROM (
SELECT CASE
WHEN yr = 9999
THEN 'A Medians'
ELSE cast(yr AS VARCHAR(10))
END AS yr
,yrdes
FROM #years2
) AS t
PIVOT(MAX(yr) FOR yrdes IN (
[YR_4]
,[YR_3]
,[YR_2]
,[YR_1]
)) t1
You seems want sub-query :
select 'header' as custom_col, t.*
from ( <dynamic query>
) t;
You can also use temporary table :
SELECT [YR_4, [YR_3], [YR_2], [YR_1] INTO #Temptable
FROM (SELECT CASE WHEN yr = 9999
THEN 'A Medians'
ELSE cast(yr AS VARCHAR(10))
END AS yr, yrdes
FROM #years2
) AS t
PIVOT ( MAX(yr) FOR yrdes IN ([YR_4], [YR_3], [YR_2], [YR_1] )
) t1;
My expected result should be like
----invoiceNo----
T17080003,INV14080011
But right now, I've come up with following query.
SELECT AccountDoc.jobCode,AccountDoc.shipmentSyskey,AccountDoc.docType,
CASE AccountDoc.docType
WHEN 'M' THEN
JobInvoice.invoiceNo
WHEN 'I' THEN
(STUFF((SELECT ', ' + RTRIM(CAST(AccountDoc.docNo AS VARCHAR(20)))
FROM AccountDoc LEFT OUTER JOIN JobInvoice
ON AccountDoc.principalCode = JobInvoice.principalCode AND
AccountDoc.jobCode = JobInvoice.jobCode
WHERE (AccountDoc.isCancelledByCN = 0)
AND (AccountDoc.docType = 'I')
AND (AccountDoc.jobCode = #jobCode)
AND (AccountDoc.shipmentSyskey = #shipmentSyskey)
AND (AccountDoc.principalCode = #principalCode) FOR XML
PATH(''), TYPE).value('.','NVARCHAR(MAX)'),1,2,' '))
END AS invoiceNo
FROM AccountDoc LEFT OUTER JOIN JobInvoice
ON JobInvoice.principalCode = AccountDoc.principalCode AND
JobInvoice.jobCode = AccountDoc.jobCode
WHERE (AccountDoc.jobCode = #jobCode)
AND (AccountDoc.isCancelledByCN = 0)
AND (AccountDoc.shipmentSyskey = #shipmentSyskey)
AND (AccountDoc.principalCode = #principalCode)
OUTPUT:
----invoiceNo----
T17080003
INV14080011
Explanation:
I want to select docNo from table AccountDoc if AccountDoc.docType = I.
Or select invoiceNo from table JobInvoice if AccountDoc.docType = M.
The problem is what if under same jobCode there have 2 docType which are M and I, how I gonna display these 2 invoices?
You can achieve this by using CTE and FOR XML. below is the sample code i created using similar tables you have -
Create table #AccountDoc (
id int ,
docType char(1),
docNo varchar(10)
)
Create table #JobInvoice (
id int ,
invoiceNo varchar(10)
)
insert into #AccountDoc
select 1 , 'M' ,'M1234'
union all select 2 , 'M' ,'M2345'
union all select 3 , 'M' ,'M3456'
union all select 4 , 'I' ,'I1234'
union all select 5 , 'I' ,'I2345'
union all select 6 , 'I' ,'I3456'
insert into #JobInvoice
select 1 , 'INV1234'
union all select 2 , 'INV2345'
union all select 3 , 'INV3456'
select *
from #AccountDoc t1 left join #JobInvoice t2
on t1.id = t2.id
with cte as
(
select isnull( case t1.docType WHEN 'M' THEN t2.invoiceNo WHEN 'I' then
t1.docNo end ,'') invoiceNo
from #AccountDoc t1 left join #JobInvoice t2
on t1.id = t2.id )
select invoiceNo + ',' from cte For XML PATH ('')
You need to pivot your data if you have situations where there are two rows, and you want two columns. Your sql is a bit messy, particularly the bit where you put an entire select statement inside a case when in the select part of another query. These two queries are virtually the same, you should look for a more optimal way of writing them. However, you can wrap your entire sql in the following:
select
Jobcode, shipmentsyskey, [M],[I]
from(
--YOUR ENTIRE SQL GOES HERE BETWEEN THESE BRACKETS. Do not alter anything else, just paste your entire sql here
) yoursql
pivot(
max(invoiceno)
for docType in([M],[I])
)pvt
Here is my table
Equipmentid Application Value
=========== =========== =====
k001 THK True
k001 BHK False
k001 KHK True
Here is what I expected:
Equipmentid THK BHK KHK
=========== === === ===
k001 True False True
I'm trying to use normal transpose Oracle using max decode but in the end need to mention AS [tablename], I want to dynamically create row to column base on row name, this database will involve very much application. Thank guys
Hi try using PIVOT,
WITH x(equipment_id, application, VALUE )
AS (SELECT 'k001', 'THK', 'TRUE' FROM DUAL UNION ALL
SELECT 'k001', 'BHK', 'FALSE' FROM DUAL UNION ALL
SELECT 'k001', 'KHK', 'TRUE' FROM DUAL UNION ALL
SELECT 'k002', 'KHK', 'FALSE' FROM DUAL UNION ALL
SELECT 'k002', 'THK', 'FALSE' FROM DUAL UNION ALL
SELECT 'k002', 'BHK', 'FALSE' FROM DUAL )
SELECT * FROM
(
SELECT equipment_id, value, application
FROM x
)
PIVOT
(
MAX(value)
FOR application IN ('THK', 'BHK', 'KHK')
) order by equipment_id;
Alternatively, if you want to have dynamic column, you can use subquery in the IN clause then use PIVOT XML,but result will be of XML TYPE which i dont know how to extract the values.(just saying) if you want to know more about how to do it dynamically with pl/sql. Read here .Here's the source
SELECT * FROM
(
SELECT equipment_id, value, application
FROM x
)
PIVOT XML
(
MAX(value)
FOR application IN (SELECT DISTINCT application from x)
) order by equipment_id;
Try this one.
SELECT EQUIPMENTID,
max(case when APPLICATION = 'THK' then VALUE end) as "THK",
max(case when APPLICATION = 'BHK' then VALUE end) as "BHK",
max(case when APPLICATION = 'KHK' then VALUE end) as "KHK"
FROM [tablename]
group by EQUIPMENTID;
You can left join in this case.
SELECT t1.Equipmentid, t2.Value AS 'THK', t3.Value AS 'BHK', t4.Value AS 'KHK' FROM TABLE t1
LEFT JOIN (SELECT Equipmentid, Value FROM TABLE WHERE Application = 'THK') AS t2 ON (t1.Equipmentid = t2.Equipmentid)
LEFT JOIN (SELECT Equipmentid, Value FROM TABLE WHERE Application = 'BHK') AS t3 ON (t1.Equipmentid = t3.Equipmentid)
LEFT JOIN (SELECT Equipmentid, Value FROM TABLE WHERE Application = 'KHK') AS t4 ON (t1.Equipmentid = t4.Equipmentid)
Even though it can be solve. But this method is not good in my opinion. Hope it help you anyway
I'm working on this problem for several days. I have a oracle database.
The problem must be resolved in one query. No Function, Pocedure, ...
I want to make a select. When he has results, post them. Else there should be "empty result".
select case
when count(*) = 0
then 'no Entry'
else MAX(Member)--all Members should be here
END as Member
from tableMember
where Membergroup = 'testgroup';
The problem is that Oracle wants an Agregat function by the else. So I only get one value if the result is not "no entry". I need all values.
Everybody who can help me is welcome and makes me happy.
not sure what do you try to achieve, perhaps this
select member from tablemember where Membergroup = 'testgroup'
union
select 'no Entry'
from dual
where NOT EXISTS ( select member from tablemember where membergroup = 'testgroup')
;
There's no need for two aggregate queries, you just need to check whether max(member) is null. I'd do it this way to make it clear what's going on.
select case when max_member is null then 'no entry' else max_member end as member
from ( select max(member) as max_member
from tablemember
where membergroup = 'testgroup'
)
If, however, you want to return all members you can do something like the following:
select member
from tablemember
where membergroup = 'testgroup'
union all
select 'no entry'
from dual
where not exists ( select 1 from tablemember where membergroup = 'testgroup')
If you RIGHT JOIN your query with a query for the empty set you will always get one row and will get all the rows if your query returns data. This is less expensive (faster) than a UNION or UNION ALL with a NOT EXISTS because it does not require multiple scans of the data.
SELECT nvl(a.member,b.member) member
FROM (SELECT member FROM tablemember WHERE membergroup='????') a
RIGHT JOIN (SELECT 'no Entry' member FROM dual) b ON 1=1;
Test Environment:
DROP TABLE tablemember;
CREATE TABLE tablemember AS
(
SELECT TO_CHAR(level) member
, DECODE(mod(level, 5), 0, 'testgroup', 'othergroup') membergroup
FROM dual CONNECT BY level <= 50
);
You can use some aggregate functions and NVL for achieve you goal:
SELECT MIN('VALUE 1') AS p1, MIN('VALUE 2') AS p2 FROM DUAL WHERE 1=0
result of this query is:
NULL, NULL
next, replace empty values by desired strings:
SELECT
NVL(MIN('1'), 'empty value 1') AS p1,
NVL(MIN('STRING VALUE'), 'empty value 2') AS p2,
NVL(MIN((select 'subquery result' from dual)), 'empty subquery result') as p3
FROM
DUAL
WHERE
1=0
But, you can't mix numbers and strings in fields.
Try this:
DECLARE C INTEGER;
SELECT COUNT(*) INTO C FROM tableMember WHERE Membergroup = 'testgroup';
IF C > 0
THEN
SELECT * FROM tableMember;
ELSE
SELECT 'No results!' FROM tableMember;
END IF;
Suppose I have a table with columns user_id, name and the table contains data like this:
user_id name
------- -----
sou souhardya
cha chanchal
swa swapan
ari arindam
ran ranadeep
If I want to know these users (sou, cha, ana, agn, swa) exists in this table or not then I want output like this:
user_id it exists or not
------- -----------------
sou y
cha y
ana n
agn n
swa y
As ana and aga do not exist in the table it must show "n" (like the above output).
Assuming your existing checklist is not on the database, you will have to assemble a query containing those. There are many ways of doing it. Using CTEs, it would look like this:
with cte as
(
select 'sou' user_id
union all
select 'cha'
union all
select 'ana'
union all
select 'agn'
union all
select 'swa'
)
select
cte.user_id,
case when yt.user_id is null then 'n' else 'y' end
from cte
left join YourTable yt on cte.user_id = yt.user_id
This also assumes user_id is unique.
Here is the SQLFiddle with the proof of concept: http://sqlfiddle.com/#!3/e023a0/4
Assuming you're just testing this manually:
DECLARE #Users TABLE
(
[user_id] VARCHAR(50)
)
INSERT INTO #Users
SELECT 'sou'
UNION SELECT 'cha'
UNION SELECT 'ana'
UNION SELECT 'agn'
UNION SELECT 'swa'
SELECT a.[user_id]
, [name]
, CASE
WHEN b.[user_id] IS NULL THEN 'N'
ELSE 'Y'
END AS [exists_or_not]
FROM [your_table] a
LEFT JOIN #Users b
ON a.[user_id] = b.[user_id]
You didn't provide quite enough information to provide a working example, but this should get you close:
select tbl1.user_id, case tbl2.user_id is null then 'n' else 'y' end
from tbl1 left outer join tbl2 on tbl1.user_id = tbl2.user_id
;with usersToCheck as
(
select 'sou' as userid
union select 'cha'
union select 'ana'
union select 'agn'
union select 'swa'
)
select utc.userid,
(case when exists ( select * from usersTable as ut where ut.user_id = utc.userid) then 'y' else 'n' end)
from usersToCheck as utc