I'm having an issue with getting TOP to work within my SQL query. I only want to see the first row within the PART_AML table. I'm not having any luck trying to only query that table without querying the PART table.
How can I go about only showing the top row within the PART_AML table? I'm using Microsoft SQL.
Thank you for your help its greatly appreciated.
SELECT innovator.PART.STATE,
innovator.PART.NAME,
innovator.PART.ITEM_NUMBER,
innovator.PART.ID,
innovator.PART.TYPE,
innovator.MANUFACTURER_PART.SPEC_URL
FROM innovator.PART
join innovator.PART_AML
on innovator.PART_AML.SOURCE_ID = innovator.PART.ID
join innovator.MANUFACTURER_PART
on innovator.MANUFACTURER_PART.ID = innovator.PART_AML.RELATED_ID
WHERE
(innovator.PART.IS_CURRENT = 1) AND (innovator.PART_AML.IS_CURRENT = 1) AND (innovator.MANUFACTURER_PART.IS_CURRENT = 1)
Current Output
Number Name ID Type Spec
E000836 1k ID1 Resistor SPEC 1
E000836 1k ID1 Resistor SPEC 2
E000836 1k ID1 Resistor SPEC 3
E003455 14.400MHz ID2 Crystal SPEC 1
E003455 14.400MHz ID2 Crystal SPEC 2
E003455 14.400MHz ID2 Crystal SPEC 3
Preferred Output
Number Name ID Type Spec
E000836 1k ID1 Resistor SPEC 1
E003455 14.400MHz ID2 Crystal SPEC 1
You can make use of the ranking function ROW_NUMBER() OVER(ORDER BY ...) to do this:
WITH CTE
AS
(
SELECT
i.STATE,
i.NAME,
i.ITEM_NUMBER,
i.ID,
i.TYPE,
p.SPEC_URL,
ROW_NUMBER() OVER(PARTITION BY i.ID
ORDER BY p.SPEC_URL) AS Rownum
FROM innovator.PART AS i
INNER JOIN innovator.PART_AML AS a on a.SOURCE_ID = i.ID
INNER JOIN innovator.MANUFACTURER_PART AS p on p.ID = a.RELATED_ID
WHERE i.IS_CURRENT = 1
AND a.IS_CURRENT = 1
AND p.IS_CURRENT = 1
)
SELECT *
FROM CTE
WHERE rownum = 1;
Also you can use simple GROUP BY clause with MIN() function
SELECT innovator.PART.STATE,
innovator.PART.NAME,
innovator.PART.ITEM_NUMBER,
innovator.PART.ID,
innovator.PART.TYPE,
MIN(innovator.MANUFACTURER_PART.SPEC_URL) AS SPEC_URL
FROM innovator.PART join innovator.PART_AML on innovator.PART_AML.SOURCE_ID = innovator.PART.ID
join innovator.MANUFACTURER_PART on innovator.MANUFACTURER_PART.ID = innovator.PART_AML.RELATED_ID
WHERE (innovator.PART.IS_CURRENT = 1) AND (innovator.PART_AML.IS_CURRENT = 1) AND (innovator.MANUFACTURER_PART.IS_CURRENT = 1)
GROUP BY innovator.PART.STATE, innovator.PART.NAME, innovator.PART.ITEM_NUMBER, innovator.PART.ID, innovator.PART.TYPE
Related
I have Oracle SQL like these :
SELECT
z."date", z.id_outlet as idOutlet, z.name as outletName, z.matClass, z.targetBulanan, z.targetBulanan/totalVisit as targetAwal,
z.actual,rownumber = tartot + rownumber as targetTotal
FROM (SELECT
b.visit_date as "date", a.id_outlet, max(o.name) as name, max(a.target_sales) as targetBulanan, a.id_material_class as matClass,
max(x.totalVisit) as totalVisit, NVL(SUM(d.billing_value),0) as actual
FROM (
select * from target_bulanan
where deleted = 0 and enabled = 1 and id_salesman = :id_salesman AND id_material_class like :id_material_class AND id_outlet like :id_outlet AND month = TO_NUMBER(TO_CHAR(current_date,'mm')) and year = to_number(TO_CHAR(current_date,'YYYY'))
) a
INNER JOIN outlet o ON o.id_outlet = a.id_outlet
LEFT JOIN visit_plan b ON b.deleted = 0 and a.id_salesman = b.id_salesman AND a.month = TO_NUMBER(TO_CHAR(b.visit_date,'mm')) AND a.year = to_number(TO_CHAR(b.visit_date,'yyyy')) AND a.id_outlet = b.id_outlet
LEFT JOIN so_header c ON SUBSTR(c.id_to,'0',1) = 'TO' AND a.id_salesman = c.id_salesman AND a.id_outlet = c.id_outlet
LEFT JOIN assign_billing d ON c.no_so_sap = d.no_so_sap AND d.billing_date = b.visit_date AND a.id_material_class = (SELECT id_material_class FROM material WHERE id = d.id_material)
LEFt JOIN (SELECT id_salesman, to_char(visit_date,'mm') as month, to_char(visit_date,'yyyy') as year, id_outlet, COUNT(*) as totalVisit FROM visit_plan
WHERE deleted = 0
group by id_salesman, id_outlet,to_char(visit_date,'mm'), to_char(visit_date,'yyyy')) x on
x.id_salesman = a.id_salesman AND x.month = a.month AND x.year = a.year AND x.id_outlet = a.id_outlet
GROUP BY b.visit_date, a.id_outlet, a.id_material_class) z
CROSS JOIN (SELECT 0 as rownumber FROM DUAL ) r
CROSS JOIN (SELECT 0 as tartot FROM DUAL ) t
CROSS JOIN (SELECT '' as mat FROM DUAL ) m
CROSS JOIN (SELECT '' as outlet FROM DUAL ) o
ORDER by outletName, z.matClass, z."date"
I want value of rownumber is formula in my select query but the result is error with this message
ORA-00923: FROM keyword not found where expected
00923. 00000 - "FROM keyword not found where expected"
Anyone can help me ? thanks
Just for enumeration -
replace the line
rownumber = rownumber + 1 AS row_number
with this
rownum AS row_number
rownum is an Oracle inbuilt function that enumerates each record of the result set and with auto increments
As mentioned by Gordon Linoff in his answer, there are further problems in your query.
At the first look (without executing it), I could list the problematic lines -
AND month = TO_NUMBER(TO_CHAR(current_date,'mm'))
AND year = to_number(TO_CHAR(current_date,'YYYY'))
Instead of current_date use sysdate
LEFT JOIN so_header c ON SUBSTR(c.id_to,'0',1) = 'TO'
I guess, you meant to do this -
LEFT JOIN so_header c ON SUBSTR(c.id_to,0,2) = 'TO'
i.e. substring from index 0 upto 2 characters
Plus, no need of those cross joins
THIS ADDRESSES THE ORIGINAL QUESTION.
You may have multiple problems in your query. After all, the best way to debug and to write queries is to start simple and gradually add complexity.
But, you do have an obvious error. In your outermost select:
SELECT z."date", z.id_outlet as idOutlet, z.name as outletName,
z.matClass, z.targetBulanan, z.targetBulanan/totalVisit as targetAwal,
z.actual,
rownumber = rownumber + 1 as row_number
The = is not Oracle syntax -- it looks like a SQL Server extension for naming a column or a MySQL use of variables.
I suspect that you want to enumerate the rows. If so, one syntax is row_number():
SELECT z."date", z.id_outlet as idOutlet, z.name as outletName,
z.matClass, z.targetBulanan, z.targetBulanan/totalVisit as targetAwal,
z.actual,
row_number() over (order by outletName, z.matClass, z."date") as row_number
In Oracle, you could also do:
rownum as row_number
Table 1 looks like the following.
ID SIZE TYPE SERIAL
1 4 W-meter1 123456
2 5 W-meter2 123456
3 4 W-meter 585858
4 4 W-Meter 398574
As you can see. Items 1 and 2 both have the same Serial Number. I have an innerjoin update statement that will update the UniqueID on these devices based on linking their serial number to the list.
What I would like to do. Is modify by hand the items with duplicate serial numbers and scripted update the ones that are unique. Im presuming I have to reference the distinct command here somewhere buy not sure.
This is my update statement as is. Pretty simple and straight forward.
update UM00400
Set um00400.umEquipmentID = tb2.MIUNo
from UM00400 tb1
inner join AA_Meters tb2 on
tb1.umSerialNumber = tb2.Old_Serial_Num
where tb1.umSerialNumber <> tb2.New_Serial_Num
;WITH CTE
AS
(
SELECT * , rn = ROW_NUMBER() OVER (PARTITION BY SERIAL ORDER BY SERIAL)
FROM UM00400
)
UPDATE CTE
SET CTE.umEquipmentID = tb2.MIUNo
inner join AA_Meters tb2
on CTE.umSerialNumber = tb2.Old_Serial_Num
where tb1.umSerialNumber <> tb2.New_Serial_Num
AND CTE.rn = 1
This will update the 1st record of multiple records with the same SERIAL.
If i understand your question correctly below query will help you out :
;WITH CTE AS
(
// getting those serial numbers which are not duplicated
SELECT umSerialNumber,COUNT(umSerialNumber) as CountOfSerialNumber
FROM UM00400
GROUP BY umSerialNumber
HAVING COUNT(umSerialNumber) = 1
)
UPDATE A SET A.umEquipmentID = C.MIUNo
FROM UM00400 A
INNER JOIN CTE B ON A.umSerialNumber = B.umSerialNumber
INNER JOIN AA_Meters C ON A.umSerialNumber = C.Old_Serial_Num
I am trying to increment a column on a sql server table based on the join between the initial table and the joined table. The idea is to update tblForm10Objectives, set the ObjectiveNumber column to an increment number starting with 1 based on the number of rows returned from the join of tblForm10GoalsObjectives and tblForm10Objectives where ID_Form10Goal equals a number. Example query so far:
Update tblForm10Objectives
Set ObjectiveNumber = rn
From (
Select ROW_NUMBER() over (PARTITION by OG.ID_Form10Goal) as rn
, *
From (
Select *
From tblForm10GoalsObjectives OG
Join tblForm10Objectives O On OG.ID_Form10Objective = O.ID_Form10Objective
Where OG.ID_Form10Goal = 4
Order by O.ID_Form10Objective
) as tblForm10Objectives;
If the select portion of the query is performed the columns are displayed so you can see the ObjectiveNumber is currently 0 where ID_Form10Goal = 4
Once the update runs I need for the ObjectiveNumber to show 1 , 2; since there are two rows for ID_Form10Goal = 4.
I had to introduce a new table to the logic of this update statement, the table name is tblForm10Goals. The objectives need to be pulled by ID_Agency instead of ID_Form10Goal I am getting an error message stating a "a multipart identifier 'dbo.tblForm10Objectives.ID_Form10Objective = rns.ID_Form10Objective' could not be bound. I am using the following SQL Update statement:
UPDATE dbo.tblForm10Objectives
SET ObjectiveNumber = rn
FROM tblForm10Goals As g
Left Join tblForm10GoalsObjectives gobs ON g.ID_Form10Goal = gobs.ID_Form10Goal
Right Join
(
SELECT
ROW_NUMBER() OVER (PARTITION BY g.ID_Agency
ORDER BY OB.ID_Form10Objective) AS rn,
OB.ID_Form10Objective
FROM tblForm10Goals g
LEFT JOIN dbo.tblForm10GoalsObjectives gobs ON g.ID_Form10Goal = gobs.ID_Form10Goal
RIGHT JOIN dbo.tblForm10Objectives OB ON gobs.ID_Form10Objective = OB.ID_Form10Objective
Where g.ID_Agency = 2
) rns ON dbo.tblForm10Objectives.ID_Form10Object = rns.ID_Form10Objective
Your example seems to be missing a closing parenthesis somewhere, and without the table structures to look at, I can't be certain of my answer. It seems you have two tables:
tblForm10Objectives
-------------------
ID_Form10Objective
ObjectiveNumber
...
and
tblForm10GoalsObjectives
------------------------
ID_Form10Goal
ID_Form10Objective
...
If this is the case, the following query should give you the results you desire:
UPDATE dbo.tblForm10Objectives
SET ObjectiveNumber = rn
FROM dbo.tblForm10Objectives INNER JOIN
(
SELECT
ROW_NUMBER() OVER (PARTITION BY OG.ID_Form10Goal
ORDER BY O.ID_Form10Objective) AS rn,
O.ID_Form10Objective
FROM dbo.tblForm10Objectives O INNER JOIN
dbo.tblForm10GoalsObjectives OG ON OG.ID_Form10Objective = O.ID_Form10Objective
Where OG.ID_Form10Goal = 4
) rns ON dbo.tblForm10Objectives.ID_Form10Objective = rns.ID_Form10Objective
If you run the inner SELECT statement, you will see the desired ObjectiveNumber values and the corresponding ID_Form10Objective that will get updated with those values.
If you post your table structures, I or someone else may be able to be of more help.
I have 2 tables as below-
Table I
ID DATE
1 05/11/12
2 23/11/12
3 29/11/12
4 04/10/12
5 20/11/12
And another table (IH) with the following info-
ID RECNO NOTE
1 1 Open
1 2 Update
1 3 Close
2 1 Open
2 2 Update
2 3 Hold
2 4 Close
3 1 Open
4 1 Open
4 2 Update
5 1 Open
I would like to output a result as shown below, displaying the Note field using the highest value of RecNo for each ID. So using the data above the output should be-
ID DATE NOTE
2 23/11/12 Close
3 29/11/12 Open
The code I have is-
SELECT I.ID, I.DATE, IH.NOTE FROM
I I, IH IH
JOIN (SELECT MAX([RECNO]) [RECNO] FROM
IH
GROUP BY RECNO) IH2 ON IH2.ID = IH.ID AND
IH2.[RECNO] = IH.[RECNO]
JOIN I I2 ON I2.ID = IH.ID WHERE
(I2.DATE>={TS ‘2012-11-22 00:00:002}) GROUP BY I2.ID
However when I execute the code I get-
Invalid Column Name 'RECNO'. Statement(s) could not be prepared.
How about this? Note, haven't tried it, I'm on my Mac at the moment.
SELECT I.ID, I.DATE, IH.NOTE
FROM I I
OUTER APPLY
(SELECT TOP 1 *
FROM IH
WHERE IH.ID = I.ID
ORDER BY RECNO DESC) IH
WHERE I.DATE >= '2012-11-22'
Your SQL is rather, uh, messy.
Assuming you are using SQL Server 2005 or greater, you can use the row_number() function, as follows:
SELECT I.ID, I.DATE, IH.NOTE
FROM I join
(select ih.*, ROW_NUMBER() over (PARTITION by id order by recno desc) as seqnum
from IH
) ih
on IH2.[RECNO] = IH.[RECNO] and seqnum = 1
WHERE I2.DATE>='2012-11-22 00:00:002'
This is assigning a sequence number in the IH table, for each id with the highest record number getting the value "1". The rest is just SQL.
Your original query is simply not correct syntactically, but I think this is what you want based on the description.
and another one
SELECT I.ID, I.DATE
,(Select TOP 1 IH.NOTE FROM IH where IH.ID=i.ID Order by Recno DESC) as Note
from I
WHERE
I.DATE>'20121122'
maybe this will help
SELECT a.ID, a.DATE, b.NOTE FROM a
inner join b on a.ID = b.ID
where b.recno in (select max(bb.recno)
from b as bb where bb.id = b.id)
http://sqlfiddle.com/#!3/fd141/2
If you don't mind the different identifiers, look at this solution:
select t1.MyID, t1.MyDate, y.Note
from t1
join
(
select MyID, max(RecNo) as RecNo
from t2
group by MyID
) x
on t1.MyID = x.MyID
left join
(
select *
from t2
) y
on t1.MyID = y.MyID
and x.RecNo = y.RecNo
where t1.MyDate >= '2012.11.22'
The complete solution is here: http://sqlfiddle.com/#!3/4ca09/3
Update: Oops, forgot to bring in the date in where clause. Updated SQL Fiddle and the query above.
Lets say I have a table e.g
Request No. Type Status
---------------------------
1 New Renewed
and then another table
Action ID Request No LastUpdated
------------------------------------
1 1 06-10-2010
2 1 07-14-2010
3 1 09-30-2010
How can I join the second table with the first table but only get the latest record from the second table(e.g Last Updated DESC)
SELECT T1.RequestNo ,
T1.Type ,
T1.Status,
T2.ActionId ,
T2.LastUpdated
FROM TABLE1 T1
JOIN TABLE2 T2
ON T1.RequestNo = T2.RequestNo
WHERE NOT EXISTS
(SELECT *
FROM TABLE2 T2B
WHERE T2B.RequestNo = T2.RequestNo
AND T2B.LastUpdated > T2.LastUpdated
)
Using aggregates:
SELECT r.*, re.*
FROM REQUESTS r
JOIN REQUEST_EVENTS re ON re.request_no = r.request_no
JOIN (SELECT t.request_no,
MAX(t.lastupdated) AS latest
FROM REQUEST_EVENTS t
GROUP BY t.request_no) x ON x.request_no = re.request_no
AND x.latest = re.lastupdated
Using LEFT JOIN & NOT EXISTS:
SELECT r.*, re.*
FROM REQUESTS r
JOIN REQUEST_EVENTS re ON re.request_no = r.request_no
WHERE NOT EXISTS(SELECT NULL
FROM REQUEST_EVENTS re2
WHERE re2.request_no = r2.request_no
AND re2.LastUpdated > re.LastUpdated)
SELECT *
FROM REQUEST, ACTION
WHERE REQUEST.REQUESTNO = ACTION.REQUESTNO --Joining here
AND ACTION.LastUpdated = (SELECT MAX(LastUpdated) FROM ACTION WHERE REQUEST.REQUESTNO = ACTION.REQUESTNO);
A sub-query is used to get the last updated record's date and matches against itself to prevent the other records being joined.
Granted, depending on how precise the LastUpdated field is, it can have problems with two records being updated on the same date, but that is a problem encountered in any other implementation, so the precision would have to be increased or some other logic would have to be in place or another distinguishing characteristic to prevent multiple rows being returned.
SELECT r.RequestNo, r.Type, r.Status, a.ActionID, MAX(a.LastUpdated)
FROM Request r
INNER JOIN Action a ON r.RequestNo = a.RequestNo
GROUP BY r.RequestNo, r.Type, r.Status, a.ActionID
We can use the operation Top 1 with ORDER BY clause. For instance, if your tables are RequestTable(ID,Type,Status) and ActionTable(ActionID,RequestID,LastUpdated), the query will be like this:
Select Top 1 rq.ID, rq.Status, at.ActionID
From RequestTable as rq
JOIN ActionTable as at ON rq.ID = at.RequestID
Order by at.LastUpdated DESC