I need to merge a as seen below, but I only want to do this if the table dbo.Problem has the value 1 in the IsValid column. dbo.Problem is linked to dbo.delivery by dbo.Problem.ID = dbo.Delivery.IssueID.
merge [dbo].[Delivery] as D
using [ReportSvr].[Report].[dbo].[Delivery] as LinkD
on ( D.[ID] = LinkD.[ID])
WHEN NOT MATCHED BY TARGET
THEN INSERT(
[ID]
,[IssueID]
,[column2]
,[column3]
)
VALUES(
[ID]
,[IssueID]
,[column]
,[column]
);
GO
Is tried something like;
select d.IssueID, i.IsValid
From Delivery d
left join (Select* From Issue where IsValid = 1) i
on d.IssueID = i.ID
since first step must be to be able to the wanted rows.
Output:
IssueID IsValid
1 1
2 NULL
6 NULL
7 1
8 1
9 1
10 NULL
As you see I failed terribly....
I'm new (second day) to SQL, sorry if this is an easy task I should know about.
I hope you are able to help me.
Using an INNER JOIN will only show deliveries that have a matching record in the Issue table. An INNER JOIN will only show records where there's a match on the join field. In your attempt you're using a LEFT JOIN which will show everything in the left table, [Delivery] ("left" makes sense if you show the entire query on a single line) and matching records in the right table, [Issue].
SELECT d.IssueID, i.IsValid
FROM Delivery d
INNER JOIN Issue i
ON d.IssueID = i.ID
WHERE i.IsValid = 1
Thanks for helping me out, I managed to solved the problem with the help from Russell Fox. I just wanted to post the answer.
merge [dbo].[Delivery] as D
using(
select d.*, i.IsValid
From [ErrorReportSvr].[ErrorReport].[dbo].[Delivery] d
inner join (Select* From [ErrorReportSvr].[ErrorReport].[dbo].[Issue] where IsValid = 1) i
on d.IssueID = i.ID
) as LinkD
on ( D.[ID] = LinkD.[ID])
WHEN NOT MATCHED BY TARGET
THEN INSERT(
[ID]
,[IssueID]
,[column2]
,[column3]
)
VALUES(
[ID]
,[IssueID]
,[column2]
,[column3]
);
GO
Related
I have 3 tables in SQL Server:
map_table: (workflow map path)
stepId step_name
----------------
1 A
2 B
3 C
4 D
5 E
history_table:
stepId timestamp author
----------------------------
1 9:00am John
2 9:20am Mary
current_stageTable:
Id currentStageId waitingFor
------------------------------------
12345 3 Kat
I would like to write a query to show the map with the workflow status. Like this result here:
step name time author
----------------------------
1 A 9:00am John
2 B 9:20am Mary
3 C waiting Kat
4 D
5 E
I tried left join
select
m.stepId, m.step_name, h.timestamp, h.author
from
map_table m
left join
history_table h on m.stepId = h.stepId
I thought it will list all the records from the map table, since I am using left join, but somehow it only shows 3 records which is from history table..
So I changed to
select
m.stepId, m.step_name, h.timestamp, h.author
from
map_table m
left join
history_table h on m.stepId = h.stepId
union
select
m.stepId, m.step_name, '' as timestamp, '' as author
from
map_table m
where
m.stageId not in (select stageId from history_table)
order by
m.stepId
Then it list the result almost as I expected, but how do I add the 3rd table in to show the current active stage?
Thank you very much for all your help!! Much appreciated.
Looks like it's what you asked:
with map_table as (
select * from (values (1,'A')
,(2,'B')
,(3,'C')
,(4,'D')
,(5,'E')) t(stepId, step_name)
)
, history_table as (
select * from (values
(1,'9:00am','John')
,(2,'9:20am','Mary')) t(stepId, timestamp, author)
)
, current_stapeTable as (
select * from (values (2345, 3, 'Kat')) t(Id, currentStageId, waitingFor)
)
select
m.stepId, m.step_name
, time = coalesce(h.timestamp, case when c.waitingFor is not null then 'waiting' end)
, author = coalesce(h.author, c.waitingFor)
from
map_table m
left join history_table h on m.stepId = h.stepId
left join current_stapeTable c on m.stepId = c.currentStageId
I think a union fits well with the data and avoids the coalescing the values on multiple joins.
with timeline as (
select stepId, "timestamp" as ts, author from history_table
union all
select currentStageId, 'waiting', waitingFor from current_stageTable
)
select step_id, step_name, "timestamp", author
from
map_table as m left outer join timeline as t
on t.stepId = m.stepId
First question here so please excuse any mistakes...
I am trying to write a SQL Query for an SSRS report and I am totally confused when it comes to my joins.
Background: I have 3 tables that are relevant
Publishers - This is essentially a list of people
Publisher Reports - This is a list of records (related to the Publisher table) that details the work they have completed in a month period.
Report Months - This is a list of records (related to the Publisher Reports table) that relates to a specific month and year. On these records they have an indicator to show whether they relate to the previous six month period.
What i am trying to do is get a list of Publishers who have not submitted a publisher report that is related to a Report Month record within the last 6 months. My desired output is a list of Publishers in on column with the Report Month(s) that they are missing in the next column.
I am really struggling how to do it... I had thought of it as a three step process...
--STEP 1 - Get list of report months that are included in the last 6 months
WITH ACTIVE6MREPM AS
(
SELECT r.jajw_name,
r.jajw_CalendarDate
FROM jajw_reportmonthBase r
WHERE r.jajw_IncludedIn6MonthReport = '1'
),
--STEP 2 - Get list of all publishers
ACTIVEPUBS AS
(
SELECT c.FullName,
c.ContactId
FROM ContactBase c
WHERE c.statecode = '0'
AND c.jajw_CongregationAssignment != 640840001
AND c.jajw_CongregationAssignment != 640840006
AND c.jajw_CongregationAssignment != 640840005
--AND q.jajw_FieldServiceGroups = (#Field_Service_Group)
),
--STEP 3 - Get List of Publisher Reports for the selected Report Months
RELEVANTREPORTS AS
(
SELECT r.jajw_reportId AS Publisher_Report_GUID,
r.jajw_PublisherId AS Publisher_GUID,
r.jajw_ReportMonthId AS ReportMonth_GUID,
m.jajw_name AS ReportMonth_Name
FROM jajw_reportBase r
INNER JOIN jajw_reportmonthBase m ON r.jajw_ReportMonthId = m.jajw_reportmonthId
WHERE r.jajw_ReportPeriod6Month = '1'
ORDER BY m.jajw_CalendarDate
After these three, I want to create my list as described above and this is the bit that has me stumped! Any help would be greatly appreciated!
Thanks!
I think you can shorten your code a lot... here's a shot at it without having test data... be sure to read the comments and add in the join condition and check the where clause.
with cte as(
SELECT r.jajw_reportId AS Publisher_Report_GUID,
r.jajw_PublisherId AS Publisher_GUID,
r.jajw_ReportMonthId AS ReportMonth_GUID,
m.jajw_name AS ReportMonth_Name,
c.FullName,
c.ContactId
FROM jajw_reportBase r
INNER JOIN jajw_reportmonthBase m ON
r.jajw_ReportMonthId = m.jajw_reportmonthId
INNER JOIN ContactBase c on --what ever condition is appropiate
WHERE r.jajw_ReportPeriod6Month = '1'
and m.jajw_IncludedIn6MonthReport = '1' --maybe put this here, or does the above do the same thing?
ORDER BY m.jajw_CalendarDate)
select
p2.FullName,
p2.ReportMonth_Name
from cte p
right join(select distinct
ReportMonth_Name, FullName
from ContactBase
left join jajw_reportmonthBase on 1=1) p2 on p2.FullName = p.FullName and p2.ReportMonth_Name = p.ReportMonth_Name
where
ContactId in (select ContactId from cte group by ContactId having count(distinct ReportMonth_GUID) < 6)
and p.FullName is null
Here is an example using test data.
declare #pub table (pubname varchar(56), ReportMonthName varchar(16))
insert into #pub (pubname,ReportMonthName) values
('a','Jan'),
('a','Feb'),
('a','Mar'),
('a','Apr'),
--publisher a is missing May and Jun
('b','Jan'),
('b','Feb'),
('b','Mar'),
('b','Jun')
--publisher b is missing Apr and May
declare #dt table (ReportMonthName varchar(16))
insert into #dt (ReportMonthName) values
('Jan'),
('Feb'),
('Mar'),
('Apr'),
('May'),
('Jun')
select
p2.pubname
,p2.ReportMonthName
from #pub p
right join(
select distinct
p.pubname
,d.ReportMonthName
from #pub p
left join #dt d on 1=1)p2 on p2.pubname = p.pubname and p2.ReportMonthName = p.ReportMonthName where p.pubname is null
I'm struggling to achieve what I trying to do, I need to select the 1st record from table 1 that has a match in table 2 and update table 2 with the value.
I have tried numerous ways and have looked at numerous post. But I either can only return 1 record or all records.
My previous attempts are below:
SELECT a.URL,
a.Caption
FROM [EAN].[DBO].[tblHotelImageList] a
WHERE a.EANHotelID IN
(SELECT b.EanHotelId FROM [EAN].[DBO].[tblEanFullTextSearch] b
)
GROUP BY a.URL,
a.Caption;
Above returns all records
SELECT a.Caption,
a.URL
FROM [EAN].[dbo].[tblHotelImageList] a
LEFT JOIN [EAN].[dbo].[tblEanFullTextSearch] b
ON b.EanHotelId = a.EANHotelID
AND b.EanHotelId =
( SELECT TOP 1
a.EANHotelID
FROM [EAN].[dbo].[tblHotelImageList]
WHERE a.EANHotelID = b.EanHotelId
)
;
Above returns all records
The above code at the moment is only trying to retrieve the records, I have not started on trying to update table with records
Instead of left join, use outer apply:
SELECT hil.Caption, hil.URL, . . .
FROM [EAN].[dbo].[tblHotelImageList] hil OUTER APPLY
(SELECT TOP 1 efts.*
FROM [EAN].[dbo].[tblEanFullTextSearch] efts
WHERE efts.EanHotelId = hil.EANHotelID
ORDER BY efts.??
) efts;
Usually, when you want one row, you want the row based on a particular order. That is what the '??' is for.
You can use similar logic for an UPDATE.
Since the mandatory record is in table 2 (tblEanFullTextSearch), make that the driver of your query. This query does what you asked for:
SELECT TOP 1
a.Caption,
a.URL
FROM [EAN].[dbo].[tblEanFullTextSearch] b
INNER JOIN [EAN].[dbo].[tblHotelImageList] a
ON b.EanHotelId = a.EANHotelID
ORDER BY a.EANHotelID;
If you need the first match for all EanHotelId values, you can modify the query like this:
SELECT TOP 1
a.Caption,
a.URL
FROM [EAN].[dbo].[tblEanFullTextSearch] b
INNER JOIN (
SELECT Caption,
URL,
EanHotelId,
ROW_NUMBER() OVER (Order By EanHotelId) as RowID
FROM [EAN].[dbo].[tblHotelImageList]
) a
ON b.EanHotelId = a.EANHotelID
WHERE RowID = 1
ORDER BY a.EANHotelID;
There is probably another criteria for selecting the first match, but it is not in your question.
First when I started this project seemed very simple. Two tables, field tbl1_USERMASTERID in Table 1 should be update from field tbl2_USERMASTERID Table 2. After I looked deeply in Table 2, there is no unique ID that I can use as a key to join these two tables. Only way to match the records from Table 1 and Table 2 is based on FIRST_NAME, LAST_NAME AND DOB. So I have to find records in Table 1 where:
tbl1_FIRST_NAME equals tbl2_FIRST_NAME
AND
tbl1_LAST_NAME equals tbl2_LAST_NAME
AND
tbl1_DOB equals tbl2_DOB
and then update USERMASTERID field. I was afraid that this can cause some duplicates and some users will end up with USERMASTERID that does not belong to them. So if I find more than one record based on first,last name and dob those records would not be updated. I would like just to skip and leave them blank. That way I wouldn't populate invalid USERMASTERID. I'm not sure what is the best way to approach this problem, should I use SQL or ColdFusion (my server side language)? Also how to detect more than one matching record?
Here is what I have so far:
UPDATE Table1 AS tbl1
LEFT OUTER JOIN Table2 AS tbl2
ON tbl1.dob = tbl2.dob
AND tbl1.fname = tbl2.fname
AND tbl1.lname = tbl2.lname
SET tbl1.usermasterid = tbl2.usermasterid
WHERE LTRIM(RTRIM(tbl1.usermasterid)) = ''
Here is query where I tried to detect duplicates:
SELECT DISTINCT
tbl1.FName,
tbl1.LName,
tbl1.dob,
COUNT(*) AS count
FROM Table1 AS tbl1
LEFT OUTER JOIN Table2 AS tbl2
ON tbl1.dob = tbl2.dob
AND tbl1.FName = tbl2.first
AND tbl1.LName = tbl2.last
WHERE LTRIM(RTRIM(tbl1.usermasterid)) = ''
AND LTRIM(RTRIM(tbl1.first)) <> ''
AND LTRIM(RTRIM(tbl1.last)) <> ''
AND LTRIM(RTRIM(tbl1.dob)) <> ''
GROUP BY tbl1.FName,tbl1.LName,tbl1.dob
Some data after I tested query above:
First Last DOB Count
John Cook 2008-07-11 2
Kate Witt 2013-06-05 1
Deb Ruis 2016-01-22 1
Mike Bennet 2007-01-15 1
Kristy Cruz 1997-10-20 1
Colin Jones 2011-10-13 1
Kevin Smith 2010-02-24 1
Corey Bruce 2008-04-11 1
Shawn Maiers 2016-08-28 1
Alenn Fitchner 1998-05-17 1
If anyone have idea how I can prevent/skip updating duplicate records or how to improve this query please let me know. Thank you.
You could check for and avoid duplicate matches using with common_table_expression (Transact-SQL)
along with row_number()., like so:
with cte as (
select
t.fname
, t.lname
, t.dob
, t.usermasterid
, NewUserMasterId = t2.usermasterid
, rn = row_number() over (partition by t.fname, t.lname, t.dob order by t2.usermasterid)
from table1 as t
inner join table2 as t2 on t.dob = t2.dob
and t.fname = t2.fname
and t.lname = t2.lname
and ltrim(rtrim(t.usermasterid)) = ''
)
--/* confirm these are the rows you want updated
select *
from cte as t
where t.NewUserMasterId != ''
and not exists (
select 1
from cte as i
where t.dob = i.dob
and t.fname = i.fname
and t.lname = i.lname
and i.rn>1
);
--*/
/* update those where only 1 usermasterid matches this record
update t
set t.usermasterid = t.NewUserMasterId
from cte as t
where t.NewUserMasterId != ''
and not exists (
select 1
from cte as i
where t.dob = i.dob
and t.fname = i.fname
and t.lname = i.lname
and i.rn>1
);
--*/
I use the cte to extract out the sub query for readability. Per the documentation, a common table expression (cte):
Specifies a temporary named result set, known as a common table expression (CTE). This is derived from a simple query and defined within the execution scope of a single SELECT, INSERT, UPDATE, or DELETE statement.
Using row_number() to assign a number for each row, starting at 1 for each partition of t.fname, t.lname, t.dob. Having those numbered allows us to check for the existence of duplicates with the not exists() clause with ... and i.rn>1
You could use a CTE to filter out the duplicates from Table1 before joining:
; with CTE as (select *
, count(ID) over (partition by LastName, FirstName, DoB) as IDs
from Table1)
update a
set a.ID = b.ID
from Table2 a
left join CTE b
on a.FirstName = b.FirstName
and a.LastName = b.LastName
and a.Dob = b.Dob
and b.IDs = 1
This will work provided there are no exact duplicates (same demographics and same ID) in table 1. If there are exact duplicates, they will also be excluded from the join, but you can filter them out before the CTE to avoid this.
Please try below SQL:
UPDATE Table1 AS tbl1
INNER JOIN Table2 AS tbl2
ON tbl1.dob = tbl2.dob
AND tbl1.fname = tbl2.fname
AND tbl1.lname = tbl2.lname
LEFT JOIN Table2 AS tbl3
ON tbl3.dob = tbl2.dob
AND tbl3.fname = tbl2.fname
AND tbl3.lname = tbl2.lname
AND tbl3.usermasterid <> tbl2.usermasterid
SET tbl1.usermasterid = tbl2.usermasterid
WHERE LTRIM(RTRIM(tbl1.usermasterid)) = ''
AND tbl3.usermasterid is null
thanks in advance for you help. I'm still quite new to MS SQL db but I was wondering why my recursive query for MSSQL below does not return the value i'm expecting. I've done my research and at the bottom is the code I came up with. Lets say I have the following table...
CategoryID ParentID SomeName
1 0 hmm
2 0 err
3 0 woo
4 3 ppp
5 4 ttt
I'm expecting the query below to return 3 4 5. I basically wanted to get the list of category id's heirarchy below it self inclusive based on the category id I pass in the recursive query. Thanks for you assistance.
GO
WITH RecursiveQuery (CategoryID)
AS
(
-- Anchor member definition
SELECT a.CategoryID
FROM [SomeDB].[dbo].[SomeTable] AS a
WHERE a.ParentID = CategoryID
UNION ALL
-- Recursive member definition
SELECT b.CategoryID
FROM [SomeDB].[dbo].[SomeTable] AS b
INNER JOIN RecursiveQuery AS d
ON d.CategoryID = b.ParentID
)
-- Statement that executes the CTE
SELECT o.CategoryID
FROM [SomeDB].[dbo].[SomeTable] AS o
INNER JOIN RecursiveQuery AS d
ON d.CategoryID = 3
GO
If you want tree from specific root:
DECLARE #rootCatID int = 3
;WITH LessonsTree (CatID)
AS
(
SELECT a.CategoryID
FROM [EducationDatabase].[dbo].[LessonCategory] AS a
WHERE a.CategoryID = #rootCatID ---<<<
UNION ALL
SELECT b.CategoryID
FROM LessonsTree as t
INNER JOIN [EducationDatabase].[dbo].[LessonCategory] AS b
ON b.ParentID = t.CatID
)
SELECT o.*
FROM LessonsTree t
INNER JOIN [EducationDatabase].[dbo].[LessonCategory] AS o
ON o.CategoryID = t.CatID
As stated in the comments, the anchor isn't restricted. Easiest solution is to add the criterium in the anchor
with RecursiveQuery (theID)
AS
(
SELECT a.ParentID --root id=parentid to include it and to prevent an extra trip to LessonCategory afterwards
FROM [LessonCategory] AS a
WHERE a.ParentID = 3 --restriction here
UNION ALL
SELECT b.CategoryID
FROM [LessonCategory] AS b
INNER JOIN RecursiveQuery AS d
ON d.theID = b.ParentID
)
SELECT* from RecursiveQuery
Another option is to have the recursive query be general (no restricted anchor) and have it keep the rootid as well. Then the query on the cte can restrict on the rootid (the first option is probably better, this second one is mainly suitable if you are created some sort of root-view)
with RecursiveQuery
AS
(
SELECT a.ParentID theID, a.ParentID RootID
FROM [LessonCategory] AS a
UNION ALL
SELECT b.CategoryID, d.RootID
FROM [LessonCategory] AS b
INNER JOIN RecursiveQuery AS d
ON d.theID = b.ParentID
)
SELECT theID from RecursiveQuery where RootID = 3