How to use 'EXIST' in a simple oracle query - oracle

I have a table called ‘MainTable’ with following data
Another table called ‘ChildTable’ with following data (foreighn key Number)
Now I want to fetch those records from ‘ChildTable’ if there exists at least one ‘S’ status.
But if any other record for this number id ‘R’ then I don’t want to fetch it
Something like this-
I tried following
Select m.Number, c.Status from MainTable m, ChildTable c
where EXISTS (SELECT NULL
FROM ChildTable c2
WHERE c2.status =’S’ and c2.status <> ‘R’
AND c2.number = m.number)
But here I am getting record having ‘R’ status also, what I am doing wrong?

You can try something like this
select num, status
from
(select id, num, status,
sum(decode(status, 'R', 1, 0)) over (partition by num) Rs,
sum(decode(status, 'S', 1, 0)) over (partition by num) Ss
from child_table) t
where t.Rs = 0 and t.Ss >= 1
-- and status = 'S'
Here is a sqlfiddle demo

The child records with 'R' might be associated with a maintable record that also has another child record with status 'S' -- that is what your query is asking for.
Select
m.Number,
c.Status
from MainTable m
join ChildTable c on c.number = m.number
where EXISTS (
SELECT NULL
FROM ChildTable c2
WHERE c2.status =’S’
AND c2.number = m.number) and
NOT EXISTS (
SELECT NULL
FROM ChildTable c2
WHERE c2.status =’R’
AND c2.number = m.number)

WITH ChildrenWithS AS (
SELECT Number
FROM ChildTable
WHERE Status = 'S'
)
,ChildrenWithR AS (
SELECT Number
FROM ChildTable
WHERE Status = 'R'
)
SELECT MaintTable.Number
,ChildTable.Status
FROM MainTable
INNER JOIN ChildTable
ON MainTable.Number = ChildTable.Number
WHERE MainTable.Number IN (SELECT Number FROM ChildrenWithS)
AND MainTable.Number NOT IN (SELECT Number FROM ChildrenWithR)

Related

Getting unsupported subquery type when trying to insert into a table

I have a query as follows:
INSERT ALL
WHEN NEWEST_ID IS NOT NULL AND
(SELECT COUNT(1) FROM (
SELECT *
FROM MY_TABLE
WHERE ID = NEWEST_ID
QUALIFY ROW_NUMBER() OVER (PARTITION BY ID ORDER BY OFFSET DESC) = 1
)
WHERE ACTIVE) = 0 THEN
INTO MY_TABLE VALUES(
NEWEST_ID,
CURRENT_DATE,
NAME,
FALSE
)
SELECT * FROM TEST_TABLE;
However I am getting an unsupported subquery type error when I try to write the select count(1) or count(*) from the subquery. Why is this so?/ How can I change this? In my subquery I am just trying to get the first row in a group of IDs after ordering by the descending offset. And then I am trying to determine whether the ACTIVE column from that result row is TRUE.
the QUALIFY can have the WHERE ACTIVE added to it:
SELECT COUNT(1)
FROM (
SELECT 1
FROM MY_TABLE as x
WHERE x.ID = NEWEST_ID
QUALIFY ROW_NUMBER() OVER (PARTITION BY x.ID ORDER BY x.OFFSET DESC) = 1 AND x.ACTIVE
)
this the inner only keeps the "last" offset per id AND if it is also active
the count = 0 can be turned into a NOT EXIST like:
INSERT ALL
WHEN newest_id IS NOT NULL
AND NOT EXISTS (
SELECT 1
FROM my_table AS x
WHERE x.id = newest_id
QUALIFY ROW_NUMBER() OVER (PARTITION BY x.id ORDER BY x.offset desc) = 1 AND x.active
) THEN
INTO my_table VALUES( newest_id, current_date, name, false)
SELECT * FROM TEST_TABLE;
"in theory"
the other option is to push that into a CTE:
WITH last_id_active AS (
SELECT x.id
FROM my_table AS x
QUALIFY
ROW_NUMBER() OVER (PARTITION BY x.id ORDER BY x.offset desc) = 1
AND x.active
)
which would need to be on the SELECT like:
INSERT ALL
WHEN tt.newest_id IS NOT NULL
AND lia.id IS NOT NULL THEN
INTO my_table VALUES( tt.newest_id, tt.current_date, tt.name, false)
WITH last_id_active AS (
SELECT x.id
FROM my_table AS x
QUALIFY
ROW_NUMBER() OVER (PARTITION BY x.id ORDER BY x.offset desc) = 1
AND x.active
)
SELECT * FROM TEST_TABLE as tt
LEFT JOIN last_id_active as lia
ON tt.newest_id = lia.id;
*based on theory
which could also be simplyfied, as lia.id will be null when tt.newest_id is also null, thus the INSERT_ALL could be simplefied more as:
INSERT ALL
WHEN lia.id IS NOT NULL THEN
INTO my_table VALUES( tt.newest_id, tt.current_date, tt.name, false)
WITH last_id_active AS (
SELECT x.id
FROM my_table AS x
QUALIFY
ROW_NUMBER() OVER (PARTITION BY x.id ORDER BY x.offset desc) = 1
AND x.active
)
SELECT * FROM TEST_TABLE as tt
LEFT JOIN last_id_active as lia
ON tt.newest_id = lia.id;

Oracle Left join give duplicate

I am trying to get all the customers whether they have install service or not from TRANS_TABLE.
NOA- query to get only the MAX product and join again with TRANS_TABLE by email id to get the all the MAX customers details (wwhther they have install service by adding Y OR N, but this query return duplicate with REP Product as well
Below is my Oracel Query which give duplicated
with CTE as (SELECT NOA.*,
CASE
WHEN TRANS_TABLE.product_name LIKE '%Installation%' THEN 'Y'
ELSE 'N'
END AS Installaion ,
ROW_NUMBER() OVER (PARTITION BY TRANS_TABLE.email_address ORDER BY TRANS_TABLE.email_address) AS rn
FROM (SELECT DISTINCT email_address
FROM TRANS_TABLE
WHERE email_address IS NOT NULL
and pdct_name like '%MAX%'
) NOA
LEFT JOIN TRANS_TABLE
ON NOA.email_address = TRANS_TABLE.email_address
select * from cte where rn='1'
The following code will help:
CTE AS (
SELECT
NOA.*,
CASE
WHEN TRANS_TABLE.PDCT_NAME LIKE '%INSTALLATION%' THEN 'Y' -- case sensitive name is used
ELSE 'N'
END AS INSTALLAION,
ROW_NUMBER() OVER(
PARTITION BY TRANS_TABLE.EMAIL_ADDRESS
ORDER BY
TRANS_TABLE.EMAIL_ADDRESS
) AS RN
FROM
(
SELECT DISTINCT
PDCT_NAME,
EMAIL_ADDRESS
FROM
TRANS_TABLE
WHERE
EMAIL_ADDRESS IS NOT NULL
AND PDCT_NAME LIKE '%MAX%'
) NOA
LEFT JOIN TRANS_TABLE ON NOA.EMAIL_ADDRESS = TRANS_TABLE.EMAIL_ADDRESS
WHERE TRANS_TABLE.PDCT_NAME NOT LIKE '%REP%') -- added this WHERE condition
SELECT
PDCT_NAME, EMAIL_ADDRESS, INSTALLAION
FROM
CTE
WHERE
RN = '1'
db<>fiddle demo
Cheers!!

ORACLE Query to find value in other table based on dates

I have two tables, Table A has an ID and an Event Date and Table B has an ID, a Description and an Event Date.
Not all IDs in Table A appear in Table B and some IDs appear multiple times in Table B with different Descriptions for each event.
The Description in Table B is an attribute that can change over time, the Event date in Table B is the date that a given ID's Description changes from its default value (kept in another table) to the new value.
I want to find the Description in Table B that matches the Event Date in Table A so, for example
Table Sample Data
A1234 would return Green and A4567 would return Null
I can't create tables here so I need to be able to this with a query.
This query will select last description from before the event:
SELECT * FROM (
SELECT tabA.id, tabA.event_date, tabB.description,
ROW_NUMBER() OVER(PARTITION BY tabB.id ORDER BY tabB.event_date DESC) rn
FROM Table_A tabA
LEFT JOIN Table_B tabB ON tabA.id = tabB.id AND tabB.event_date <= tabA.event_date
) WHERE rn = 1
If I understand well your need, this could be a way:
select a.id, description
from tableA A
left join
(select id,
description,
event_date from_date,
lead(event_date) over (partition by id order by event_date) -1 as to_date
from tableB
) B
on (A.id = B.id and a.event_date between b.from_date and b.to_date)
The idea here is to evaluate, for each row in tableB the range of dates for which that row, and its description, is valid; given this, a simple join should do the job.
You can left join tables like:
select a.ID , b1.DESCRIPTION
from TABLE_A a
left join TABLE_B b1 on a.ID = b1.id and a.EVENT_DATE > b1.EVENT_DATE
left join TABLE_B b2 on a.ID = b2.id and b1.EVENT_DATE < b2.EVENT_DATE and a.EVENT_DATE > b2.EVENT_DATE
where b1.id is null or b2.EVENT_DATE is null;

Result set different from query than from stored procedure in Oracle

I have a sp that is giving me wrong results. That sp returns a cursor which is missing some rows. Now
When we fire the query within the sp directly in a query window, correct results come up. The only difference in this query is that instead of a cursor, the query directly outputs the result set; i.e. no cursor is opened when we fire the query directly.
When we recompile the sp, correct results come up for some time, and then it is back to missing rows after some time.
Have not been able to make much progress on this. Any pointers on what to look for, how to make progress etc. are much appreciated. I can paste the sp in here if needed, and probably the sp can be rewritten in some other way to make the problem go away, but I am more interested in knowing root cause - what could be causing this strange problem?
SP
CREATE OR REPLACE PROCEDURE "SP_GETTAXSETTINGCHANNELINFO" (v_bid varchar2,
p_rdTaxSetting out SYS_REFCURSOR) as
vT_bid varchar2(100);
begin
vT_bid := v_bid;
Open p_rdTaxSetting for
Select taxmappingid, CHANNELNAME,PROPERTYNAME, PROPERTYID, TAXTYPE, ISPARTIALLYINCLUSIVE, PARTIALLYINCLUSIVEVALUE
FROM (
WITH ChannelData AS (
SELECT ONDEMAND_SELECTED_SOURCES AS OnDemandChannels,
SCHEDULED_SELECTED_SOURCES AS ScheduledChannels
FROM SUB_ORDER S
INNER JOIN CONTACT C ON S.Supplier_ID = C.Contact_ID
WHERE C.BID = vT_bid
AND S.STATUS='Complete' and current_ind = 1
),
Property_Data As (
SELECT
SC.PROPERTY_NUM AS PropertyID
,SC.Company_Name as PropertyName
,SC.competitor_number as PropertyOrder
FROM SUB_ORDER S
INNER JOIN CONTACT C ON S.Supplier_ID = C.Contact_ID
INNER JOIN SUB_ORDER_COMPETITOR SC ON S.Order_Id = SC.Order_ID
WHERE C.BID = vT_bid
AND S.STATUS='Complete' and current_ind = 1
),
ODChannel as (
select regexp_substr (OnDemandChannels, '[^,]+', 1, rn) as Channel
from (Select OnDemandChannels From ChannelData)
cross join
(select rownum rn
from (select max (length (regexp_replace (OnDemandChannels, '[^,]+'))) + 1 max_value
from (Select OnDemandChannels From ChannelData))
connect by level <= max_value)
where regexp_substr (OnDemandChannels, '[^,]+', 1, rn) is not null
),
SCDChannel As (
select regexp_substr (ScheduledChannels, '[^,]+', 1, rn) as Channel
from (Select ScheduledChannels From ChannelData)
cross join
(select rownum rn
from (select max (length (regexp_replace (ScheduledChannels, '[^,]+'))) + 1 max_value
from (Select ScheduledChannels From ChannelData))
connect by level <= max_value)
where regexp_substr (ScheduledChannels, '[^,]+', 1, rn) is not null
),
ChaData1 As (
Select
CASE lower(Channel)
WHEN 'galileo' then 'GDS'
else Channel
end AS Channel
from ODChannel
),
ChaData2 As (
Select CASE lower(Channel)
WHEN 'galileo' then 'GDS'
else Channel
end AS Channel FROM SCDChannel
),
PropData As (
Select Distinct PropertyID,PropertyName from Property_Data
order by PropertyID
),
AllChannel AS (
Select Channel From ChaData1
union
Select Channel From ChaData2
),
Prop_Cha_Data As (
Select Distinct Channel,PropertyID,PropertyName from AllChannel,Property_Data
order by Channel,PropertyID
),
Tax_Channel_Prop_Exists AS ( select
CASE lower(CHANNELNAME)
WHEN 'galileo' then 'GDS'
else CHANNELNAME
end AS CHANNELNAME,
PropertyName As PROPERTYNAME, TCP.PROPERTYID As PROPERTYID,TAXTYPE,
ISPARTIALLYINCLUSIVE, PARTIALLYINCLUSIVEVALUE,taxmappingid
from TAXSETTING_CHANNEL_PROPERTY TCP
INNER JOIN AllChannel PC On TRIM (CASE lower(TCP.CHANNELNAME)
WHEN 'galileo' then 'GDS'else TCP.CHANNELNAME end) = TRIM(PC.Channel)
INNER JOIN PropData CP On TCP.PROPERTYID = CP.PropertyID
where TCP.BID=vT_bid
)
Select Distinct taxmappingid, CHANNELNAME,PROPERTYNAME, PROPERTYID, TAXTYPE, ISPARTIALLYINCLUSIVE, PARTIALLYINCLUSIVEVALUE from Tax_Channel_Prop_Exists
UNION ALL
select DISTINCT 0 As taxmappingid, PCD.Channel As CHANNELNAME,
PCD.PropertyName As PROPERTYNAME ,
PCD.propertyid As PROPERTYID,
-1 As TAXTYPE,
0 As ISPARTIALLYINCLUSIVE,
'' As PARTIALLYINCLUSIVEVALUE
FROM Prop_Cha_Data PCD
WHERE NOT EXISTS (
Select taxmappingid FROM Tax_Channel_Prop_Exists E
WHERE E.channelname = PCD.Channel AND
E.propertyid = PCD.propertyid )
)
Order by PROPERTYNAME,CHANNELNAME ;
end SP_GetTaxSettingChannelInfo;

Sql recursive error invalid column name CTE

I have done following CTE it works fine,but I need to get sum of the last node so the problem is when I add T1.Debit Column to be calculated its give me an invalid column name 'Debit' !!! on line ***
ALTER Function [dbo].[SubTopics_GetSum]
-- Add the parameters for the stored procedure here
(
#TopicID int
)
RETURNS TABLE
AS
RETURN
(
-- Add the SELECT statement with parameter references here
WITH cte
AS (
SELECT
T1.TopicID,
T1.Code,
T1.Description,
T1.ParentID,
T1.ParentID AS NewParentID,
CAST(T1.Code AS nvarchar(MAX)) AS TopicCode,
CAST(T1.Description AS nvarchar(MAX)) AS TopicDescription,
isnull((Accounting.DocumentDetail.Debit),0) AS Debit,
isnull((Accounting.DocumentDetail.Credit),0) AS Credit
FROM Accounting.Topics AS T1
LEFT OUTER JOIN Accounting.DocumentDetail
ON T1.TopicID = Accounting.DocumentDetail.TopicFK
where NOT EXISTS(
SELECT
T2.TopicID,
T2.Code,
T2.Description,
T2.ParentID,
isnull((Accounting.DocumentDetail.Debit),0) AS Debit,
isnull((Accounting.DocumentDetail.Credit),0) AS Credit
FROM Accounting.Topics AS T2
LEFT OUTER JOIN Accounting.DocumentDetail
ON T2.TopicID = Accounting.DocumentDetail.TopicFK
WHERE (ParentID = T1.TopicID)
)
UNION ALL
SELECT
c.TopicID,
c.Code,
c.Description,
c.ParentID,
T1.ParentID AS NewParentID,
CAST(T1.Code AS nvarchar(MAX)) + c.TopicCode AS TopicCode,
CAST(T1.Description AS nvarchar(MAX)) + ' - ' + c.TopicDescription AS TopicDescription,
*** isnull((T1.Debit),0)+isnull(c.Debit,0) AS Debit,--IN THIS LINE error 'Invalid Column Name 'Debit''
isnull(c.Credit,0) AS Credit
FROM cte AS c
INNER JOIN Accounting.Topics AS T1
ON T1.TopicID = c.NewParentID
)
SELECT isnull(sum(Debit),0)AS Debit,
isnull(sum(Credit),0)AS Credit
FROM cte AS c
WHERE (NewParentID = #TopicID)
)
let me know whats wrong with my code confused !!!
actually it doesn't return me a last node sum of debit,credit ... !!!
check following pic
I think below code will help,
ALTER FUNCTION [dbo].[Subtopics_getsum]
-- Add the parameters for the stored procedure here
(#TopicID INT)
returns TABLE
AS
RETURN (
-- Add the SELECT statement with parameter references here
WITH cte
AS (SELECT T1.topicid,
T1.code,
T1.description,
T1.parentid,
T1.parentid AS
NewParentID
,
Cast(T1.code AS NVARCHAR(max))
AS TopicCode,
Cast(T1.description AS NVARCHAR(max)) AS
TopicDescription,
Isnull(( accounting.documentdetail.debit ), 0) AS Debit,
Isnull(( accounting.documentdetail.credit ), 0) AS Credit
FROM accounting.topics AS T1
LEFT OUTER JOIN accounting.documentdetail
ON T1.topicid =
accounting.documentdetail.topicfk
WHERE NOT EXISTS(SELECT T2.topicid,
T2.code,
T2.description,
T2.parentid,
Isnull(( accounting.documentdetail.debit ), 0)
AS
Debit,
Isnull(( accounting.documentdetail.credit ), 0) AS
Credit
FROM accounting.topics AS T2
LEFT OUTER JOIN accounting.documentdetail
ON T2.topicid =
accounting.documentdetail.topicfk
WHERE ( parentid = T1.topicid )))
SELECT Isnull(Sum(debit), 0) AS Debit,
Isnull(Sum(credit), 0)AS Credit
FROM cte AS c
WHERE ( newparentid = #TopicID )
)
I think you Accounting.Topics hasn't column Debit.
UPDTAE
isnull((T1.Debit),0)+isnull(c.Debit,0) AS Debit,--IN THIS LINE error 'Invalid Column Name 'Debit''
isnull(c.Credit,0) AS Credit
FROM cte AS c
INNER JOIN Accounting.Topics AS T1
ON T1.TopicID = c.NewParentID
In the code above your T1.Debit refers to Accounting.Topics.

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