Is it possible to generate a unique ID for the auxiliary table? I am retrieving data from several tables, but I do not know how to create a new ID for the results:
I would like to have an additional column with ID.
I tried to look for several methods, but nothing helped me.
I will be very grateful.
Greetings,
with ct as (
select *
INTO temp_table
from dba.view_NEW_Users_AreaCodes ur
join dba.view_NEW_Customers_SalesTowns ct on ct.CustSalesTerritoryTTID = ur.UserAreaCodeID
where ur.UserType = 'TT'
and ct.CustSalesTerritoryTTID <> 0
union all
select *
from dba.view_NEW_Users_AreaCodes ur
join dba.view_NEW_Customers_SalesTowns ct on ct.CustSalesTerritoryMTID = ur.UserAreaCodeID
where ur.UserType = 'MT'
and ct.CustSalesTerritoryMTID <> 0
union all
select *
from dba.view_NEW_Users_AreaCodes ur
join dba.view_NEW_Customers_SalesTowns ct on ct.CustSalesTerritoryHRCID = ur.UserAreaCodeID
where ur.UserType = 'HRC'
and ct.CustSalesTerritoryHRCID <> 0
union all
select *
from dba.view_NEW_Users_AreaCodes ur
join dba.view_NEW_Customers_SalesTowns ct on ct.CustSalesTerritoryDevID = ur.UserAreaCodeID
where ur.UserType = 'DEV'
and ct.CustSalesTerritoryDevID <> 0
)
select row_number() over (order by newid()) as DATA_ID,
ct.*
from ct;
You could use row_number():
with t as (
< your query here >
)
select row_number() over (order by newid()) as seqnum,
t.*
from t;
newid() is just an arbitrary value that randomizes the numbering. You can use a column there if you prefer a more canonical ordering.
Related
There are 25 records in this sql query
I want to get between 5 and 10. How can I do it ?
I use 11g
select
(
select count(*) as sayfasayisi
from konular t
where t.kategori is not null
) as sayfasayisi,
t.id,
t.uye,
t.baslik,t.mesaj,t.kategori,t.tarih,
t.edittarih,t.aktif,t.indirimpuani,t.altkategori,t.link,
nvl(
(select case when t.id = f.konuid and f.uye = 'test' then '1' else '0' end
from takipkonu f where t.id = f.konuid and f.uye = 'test'), '0') as takip
from konular t
where t.kategori is not null
You can use ROW_NUMBER() to assign a row number based on some ordering logic contained in your current query, e.g. a certain column. Then, retain only the 5th to 10th records:
select t.*
from
(
select
(
select count(*) as sayfasayisi
from konular t
where t.kategori is not null
) as sayfasayisi,
ROW_NUMBER() OVER (ORDER BY some_col) rn,
t.id,
t.uye,
...
) t
where t.rn between 5 and 10;
I have a table that looks like this:
ID Type Value
A Z01 10
A Z09 20
B Z01 30
C Z01 40
D Z09 50
E Z10 60
For each ID I would like to retrieve a value. Ideally the value should come from the row with type Z01. However, if Z01 is not available I'll pick Z09 instead. If nothing is available I would like to select nothing.
The result would look like this:
Id Type Value
A Z01 10
B Z01 30
C Z01 40
D Z09 50
How can I accomplish this with T-SQL?
This should give you what you want:
select *
from table t
where 1 = case
when t.type = 'Z01'
then 1
when t.type = 'Z09'
and not exists (select 1 from table where id = t.id and type = 'Z01')
then 1
else 0
end
An alternative, with using a more common approach is (re-writing the CASE expression):
select *
from table
where type = 'Z01'
OR (type = 'Z09' and not exists (select 1 from table where id = t.id and type = 'Z01'))
An obvious sargable approach (which will make your query use the appropriate index on your table, if it exists) would be:
select *
from table
where type = `Z01`
union all
select *
from table
where type = `Z09`
and not exists (select 1 from table where id = t.id and type = 'Z01')
And when I'm saying index I'm talking about a non-clustered index on the type column.
You can use query like this
;WITH cte
AS (SELECT
*, ROW_NUMBER() OVER (PARTITION BY id ORDER BY type) AS rn
FROM yourtable
WHERE type IN ('Z01', 'Z09'))
SELECT
id, type, value
FROM cte
WHERE rn = 1
I would use window functions:
select t.*
from (select t.*,
row_number() over (partition by id
order by (case when type = 'Z01' then 1
when type = 'Z09' then 2
end)
) as seqnum
from t
) t
where seqnum = 1;
I don't fully understand teh statement "if nothing is available, then choose nothing". If, by this, you mean you want 'Z01', 'Z09' or nothing at all, then just do:
select t.*
from (select t.*,
row_number() over (partition by id order by type) as seqnum
from t
where type in ('Z01', 'Z09')
) t
where seqnum = 1;
The where clause does the filtering, and you can just order by the type alphabetically.
Something like this:
select distinct
base.Id,
Coalesce(z01.Type, any.Type) Type,
Coalesce(z01.Value, any.Value)
from (select distinct id from [table]) base
left outer join [table] z01
on z01.id = base.id
and z01.Type = 'Z01'
left outer join [table] any
on any.id = base.id
and any.type != 'Z01'
Start with a WHERE clause. Select only entries with Z01 and Z09. Then use ROW_NUMBER to rank your rows and keep the best.
select id, type, value
from
(
select
id, type, value,
row_number()
over (partition by id order by case when type = 'Z01' then 1 else 2 end) as rn
from mytable
where type in ('Z01','Z09')
) ranked
where rn = 1;
Then try this
Select distinct a.id,
coalesce(t1.type, t9.type) type,
case when t1.type is not null
then t1.value else t9.value end value
From table a
left join table t1
on t1.id = a.id
and t1.type = 'Z01'
left join table t9
on t9.id = a.id
and t9.type = 'Z09'
Where a.type in ('Z01', 'Z09') -- < -- this last to eliminate row E
I wrote this query but it does not work as I expected.
1st Goal: select rows that have repeated in certain columns and return whole columns.
2nd Goal: Update a flag (a column) to identify which records have repeated.
Could you please help me?
SELECT
*
FROM AvvalV2NS AS M
WHERE EXISTS
(SELECT
M.Astate,
M.Acity,
M.Azone,
M.Abvillage,
M.Avillage,
COUNT(*)
FROM AvvalV2NS AS M
GROUP BY M.Astate,
M.Acity,
M.Azone,
M.Abvillage,
M.Avillage
HAVING COUNT(*) > 1)
If you want to get the rows that are duplicated, window functions are probably the easiest way:
select a.*
from (select a.*,
count(*) over (partition by M.Astate, M.Acity, M.Azone, M.Abvillage, M.Avillage) as cnt
from AvvalV2NS a
) a
where cnt > 1;
You can update a flag by doing something like this:
with toupdate as (
select a.*
from (select a.*,
count(*) over (partition by M.Astate, M.Acity, M.Azone, M.Abvillage, M.Avillage) as cnt
from AvvalV2NS a
) a
)
update toupdate
set isduplicate = (case when cnt > 1 then 1 else 0 end);
Suppose your table have an id column:
SELECT * FROM THE_TABLE WHERE ID IN (
SELECT ID FROM
(SELECT ID, REPEATING_COLUMNS, COUNT(*) FROM THE_TABLE GROUP BY REPEATING_COLUMNS HAVING COUNT(*) > 1)
)
UPDATE THE_TABLE SET THE_FLAG = "HERE WE GO" WHERE ID IN (
SELECT ID FROM
(SELECT ID, REPEATING_COLUMNS, COUNT(*) FROM THE_TABLE GROUP BY REPEATING_COLUMNS HAVING COUNT(*) > 1)
)
Hope this helps.
Is it possible to have SQL stop checking the WHERE clause once a condition is met? For instance, if I have a statement as below:
SELECT * FROM Table1
WHERE Table1.SubID = (SELECT TOP 1 SubID FROM Table2 ORDER BY Date DESC)
OR Table1.OrderID = (SELECT TOP 1 OrderID FROM Table2 ORDER BY Date DESC)
Is it possible to stop execution after the first check? In essence, only one of the two checks in the where clause should be used, giving precedence to the first. Example cases below.
Example Cases:
Case1
Table1 SubID=600 OrderID=5
Table2 TOP 1 SubID=NULL
Table2 TOP 1 OrderID=5
Matches the OrderID to 5
Case 2
Table1 SubId=600 OrderId=5
Table2 Top 1 SubID=600
Table2 Top 1 OrderID=3
Matches to SubID=600, not OrderID=3
Given suggested answers, a with seems the best possible solution to solve what SQL is not inherently able to do. For my specific situation, the issue comes when attempting to put this into an outer apply, as below.
SELECT * FROM tbl_MainFields
OUTER APPLY
(
WITH conditional AS
(
SELECT 1 AS 'choice', PlanCode, Carrier
FROM tbl_payers
WHERE tbl_payers.PlanCode =
(
SELECT TOP 1 PlanCode
FROM tbl_payerDenials
WHERE tbl_payerDenials.AccountNumber = tbl_mainFields.AccountNumber
ORDER BY InsertDate DESC
)
UNION ALL
SELECT 2 AS 'choice', PlanCode, Carrier
FROM tbl_payers
WHERE tbl_payers.OrderNum =
(
SELECT TOP 1 DenialLevel
FROM tbl_payerDenials
WHERE tbl_payerDenials.AccountNumber = tbl_mainFields.AccountNumber
ORDER BY InsertDate DESC
)
)
SELECT
PlanCode AS DenialPC,
Carrier AS DenialCAR
FROM conditional
WHERE choice = (SELECT MIN(choice) FROM conditional)
) denialData
I think you can try something like this
WITH conditional AS(
SELECT 1 AS 'choice', PlanCode, Carrier
FROM tbl_payers
WHERE tbl_payers.PlanCode =
(
SELECT TOP 1 PlanCode
FROM tbl_payerDenials
JOIN tbl_mainFields ON
tbl_payerDenials.AccountNumber = tbl_mainFields.AccountNumber
ORDER BY InsertDate DESC
)
UNION ALL
SELECT 2 AS 'choice', PlanCode, Carrier
FROM tbl_payers
WHERE tbl_payers.OrderNum =
(
SELECT TOP 1 DenialLevel
FROM tbl_payerDenials
JOIN tbl_mainFields ON
tbl_payerDenials.AccountNumber = tbl_mainFields.AccountNumber
ORDER BY InsertDate DESC
)
)
SELECT * FROM tbl_MainFields tMF
OUTER APPLY
(
SELECT *
FROM conditional c
WHERE c.choice = (SELECT MIN(choice) FROM conditional)
) denialData
I'm using the 1 and 2 values to mark the queries, and then select the information from the first, if it returns values, otherwise it returns values from the second query (the MIN(choice) part).
I hope it is clear.
No, this cannot be done. The query optimizer, when sent a query, optimizes the entire query. Further, it creates a plan to leverage the entire query. If you need to do this you'll want to look at doing something like this:
SELECT *
INTO #tbl
FROM Table1
WHERE Table1.SubID = (SELECT TOP 1 SubID FROM Table2 ORDER BY Date DESC)
IF ( NOT EXISTS (SELECT * FROM #tbl) )
BEGIN
SELECT *
INTO #tbl
FROM Table1
WHERE Table1.OrderID = (SELECT TOP 1 OrderID FROM Table2 ORDER BY Date DESC)
END
Credit to #RaduGheorghiu for the inspiration.
This functionality is similar to the WITH and MIN combination suggested, but allows for use within an OUTER APPLY
SELECT * FROM tbl_MainFields
OUTER APPLY
(
SELECT TOP 1
PlanCode AS DenialPC,
Carrier AS DenialCAR,
Precedence
FROM
(
SELECT
1 AS 'Precedence',
PlanCode,
Carrier
FROM tbl_payers
WHERE tbl_payers.PlanCode =
(
SELECT TOP 1 PlanCode
FROM tbl_payerDenials
WHERE tbl_payerDenials.AccountNumber = tbl_mainFields.AccountNumber
ORDER BY InsertDate DESC
)
UNION ALL
SELECT
2 AS 'Precedence',
PlanCode,
Carrier
FROM tbl_payers
WHERE tbl_payers.OrderNum =
(
SELECT TOP 1 DenialLevel
FROM tbl_payerDenials
WHERE tbl_payerDenials.AccountNumber = tbl_mainFields.AccountNumber
ORDER BY InsertDate DESC
)
) AS denialPrecedence
ORDER BY Precedence
) denialData
I have the following table structure:
Id, Message
1, John Doe
2, Jane Smith
3, Error
4, Jane Smith
Is there a way to get the error record and the surrounding records? i.e. find all Errors and the record before and after them.
;WITH numberedlogtable AS
(
SELECT Id,Message,
ROW_NUMBER() OVER (ORDER BY ID) AS RN
FROM logtable
)
SELECT Id,Message
FROM numberedlogtable
WHERE RN IN (SELECT RN+i
FROM numberedlogtable
CROSS JOIN (SELECT -1 AS i UNION ALL SELECT 0 UNION ALL SELECT 1) n
WHERE Message='Error')
WITH err AS
(
SELECT TOP 1 *
FROM log
WHERE message = 'Error'
ORDER BY
id
),
p AS
(
SELECT TOP 1 l.*
FROM log
WHERE id <
(
SELECT id
FROM err
)
ORDER BY
id DESC
)
SELECT TOP 3 *
FROM log
WHERE id >
(
SELECT id
FROM p
)
ORDER BY
id
Adapt this routine to pick out your target.
DECLARE #TargetId int
SET #TargetId = 3
select *
from LogTable
where Id in (-- "before"
select max(Id)
from LogTable
where Id < #TargetId
-- target
union all select #TargetId
-- "after"
union all select min(Id)
from LogTable
where Id > #TargetId)
select id,messag from
(Select (Row_Number() over (order by ID)) as RNO, * from #Temp) as A,
(select SubRNO-1 as A,
SubRNO as B,
SubRNO+1 as C
from (Select (Row_Number() over (order by ID)) as SubRNO, * from #Temp) as C
where messag = 'Error') as B
where A.RNO = B.A or A.RNO = B.B or A.RNO = B.C
;WITH Logs AS
(
SELECT ROW_NUMBER() OVER (ORDER BY id), id, message as rownum FROM LogTable lt
)
SELECT curr.id, prev.id, next.id
FROM Logs curr
LEFT OUTER JOIN Logs prev ON curr.rownum+1=prev.rownum
RIGHT OUTER JOIN Logs next ON curr.rownum-1=next.rownum
WHERE curr.message = 'Error'
select id, message from tbl where id in (
select id from tbl where message = "error"
union
select id-1 from tbl where message = "error"
union
select id+1 from tbl where message = "error"
)
Get fixed number of rows before & after target
Using UNION for a simple, high performance query (I found selected answer WITH query above to be extremely slow)
Here is a high performance alternative to the WITH top selected answer, when you know an ID or specific identifier for a given record, and you want to select a fixed number of records BEFORE and AFTER that record. Requires a number field for ID, or something like date that can be sorted ascending / descending.
Example: You want to select the 10 records before and after a specific error was recorded, you know the error ID, and can sort by date or ID.
The following query gets (inclusive) the 1 result above, the identified record itself, and the 1 record below. After the UNION, the results are sorted again in descending order.
SELECT q.*
FROM(
SELECT TOP 2
id, content
FROM
the_table
WHERE
id >= [ID]
ORDER BY id ASC
UNION
SELECT TOP 1
id, content
FROM
the_table
WHERE
id < [ID]
ORDER BY id DESC
) q
ORDER BY q.id DESC