I want to count many likes i have for specific post in my database I had create this simple Query show How many Like I have for one resource"post" but when I add to main script it miss it up
SELECT COUNT(Likes.resourceID) AS Count_resID, Resources.Id
FROM Likes INNER JOIN
Resources ON Likes.resourceID = Resources.Id
GROUP BY Resources.Id
Result
Count_resID Id
----------- -----------
1 53
2 54
2 60
2 61
1 62
(5 row(s) affected)
SELECT a.Id, a.summary, a.pageId, a.name, a.createdOn, COUNT(Likes.resourceID) AS Count_resID
FROM Resources AS a INNER JOIN
Topics_Resources AS b ON a.Id = b.ResourceID INNER JOIN
Skills_Resources AS c ON a.Id = c.ResourceID INNER JOIN
Types AS d ON a.typeId = d.Id INNER JOIN
Modules AS m ON a.ModuleId = m.ModuleID INNER JOIN
ContentItems AS ci ON m.ModuleID = ci.ModuleID INNER JOIN
Tabs AS t ON t.TabID = ci.TabID INNER JOIN
TabModules AS tb ON t.TabID = tb.TabID INNER JOIN
Likes ON a.Id = Likes.resourceID LEFT OUTER JOIN
HtmlText AS h ON tb.ModuleID = h.ModuleID
GROUP BY a.Id, a.summary, a.pageId, a.name, a.createdOn
Id summary pageId name createdOn Count_resID
----------- --------------------------------------------------------------------------------------------------------------------------------------------------------------------
53 jihuih http://localhost/ideapark/testpage99.aspx jklhjk 2013-05-10 07:24:21.833 12
54 1 http://localhost/ideapark/testpage33.aspx sdvs 2013-05-09 07:24:21.833 2
60 sdvsdv http://localhost/ideapark/tesCreatedate.aspx dsvsdv 2013-05-13 07:32:13.133 8
61 newtest http://localhost/ideapark/newtest.aspx newTest 2013-05-13 10:35:08.027 2
62 sdvsdvds http://localhost/ideapark/page21.aspx svdsvs 2013-05-14 14:06:15.603 35
(5 row(s) affected)
The problem is that you are joining multiple tables, and more than one of these tables has a 1-n relationship. You are getting Cartesian products where you don't expect it.
The right way to fix this is to do subqueries to summarize before you join.
You do, however, have a quick-and-easy fix using count(distinct). Use this select statement instead:
SELECT a.Id, a.summary, a.pageId, a.name, a.createdOn,
COUNT(distinct Likes.Id) AS Count_resID;
This assumes that each record in likes has an id to uniquely identify it.
A better way to fix it (especially if this query will be re-used) involves changing the from joins from:
TabModules AS tb ON t.TabID = tb.TabID INNER JOIN
Likes ON a.Id = Likes.resourceID LEFT OUTER JOIN
To something like:
. . .
TabModules AS tb ON t.TabID = tb.TabID INNER JOIN
(select l.resourceId, count(*) as NumLikes
from Likes l
) l ON a.Id = l.resourceID LEFT OUTER JOIN
. . .
And then referencing NumLikes in the select clause.
Based off of your results change there is an issue with one of the criteria you are using to join your tables. You must make sure Tables in join all have one to one ratio with the base table.
Related
I am trying to create one single query that will give me a distinct count for both the ActivityID and the CommentID. My query in MS Access looks like this:
SELECT
tbl_Category.Category, Count(tbl_Activity.ActivityID) AS CountOfActivityID,
Count(tbl_Comments.CommentID) AS CountOfCommentID
FROM tbl_Category LEFT JOIN
(tbl_Activity LEFT JOIN tbl_Comments ON
tbl_Activity.ActivityID = tbl_Comments.ActivityID) ON
tbl_Category.CategoryID = tbl_Activity.CategoryID
WHERE
(((tbl_Activity.UnitID)=5) AND ((tbl_Comments.PeriodID)=1))
GROUP BY
tbl_Category.Category;
I know the answer must somehow include SELECT DISTINCT but am not able to get it to work. Do I need to create multiple subqueries?
This is really painful in MS Access. I think the following does what you want to do:
SELECT ac.Category, ac.num_activities, aco.num_comments
FROM (SELECT ca.category, COUNT(*) as num_activities
FROM (SELECT DISTINCT c.Category, a.ActivityID
FROM (tbl_Category as c INNER JOIN
tbl_Activity as a
ON c.CategoryID = a.CategoryID
) INNER JOIN
tbl_Comments as co
ON a.ActivityID = co.ActivityID
WHERE a.UnitID = 5 AND co.PeriodID = 1
) as caa
GROUP BY ca.category
) as ca LEFT JOIN
(SELECT c.Category, COUNT(*) as num_comments
FROM (SELECT DISTINCT c.Category, co.CommentId
FROM (tbl_Category as c INNER JOIN
tbl_Activity as a
ON c.CategoryID = a.CategoryID
) INNER JOIN
tbl_Comments as co
ON a.ActivityID = co.ActivityID
WHERE a.UnitID = 5 AND co.PeriodID = 1
) as aco
GROUP BY c.Category
) as aco
ON aco.CommentId = ac.CommentId
Note that your LEFT JOINs are superfluous because the WHERE clause turns them into INNER JOINs. This adjusts the logic for that purpose. The filtering is also very tricky, because it uses both tables, requiring that both subqueries have both JOINs.
You can use DISTINCT:
SELECT
tbl_Category.Category, Count(DISTINCT tbl_Activity.ActivityID) AS CountOfActivityID,
Count(DISTINCT tbl_Comments.CommentID) AS CountOfCommentID
FROM tbl_Category LEFT JOIN
(tbl_Activity LEFT JOIN tbl_Comments ON
tbl_Activity.ActivityID = tbl_Comments.ActivityID) ON
tbl_Category.CategoryID = tbl_Activity.CategoryID
WHERE
(((tbl_Activity.UnitID)=5) AND ((tbl_Comments.PeriodID)=1))
GROUP BY
tbl_Category.Category;
I have created a temp table that lists each client's invoice(s), plus the number of days it took to pay the invoice. A client can have more than one invoice.
Instead of this, I would just like the temp table to list each client once, along with the AVERAGE number of days it took to pay all of their invoices.
Any tips on how to do this would be much appreciated.
Thanks
select
c.client_code,
b.bill_num,
b.bill_date,
ba.TRAN_DATE,
sum(datediff(Day,b.BILL_DATE, ba.TRAN_DATE)) as Days_To_Pay
into #tempG1
from blt_bill b
left outer join blt_billm bm on b.tran_uno = bm.bill_tran_uno
left outer join BLT_BILL_AMT ba on bm.BILLM_UNO = ba.BILLM_UNO
left outer join hbm_matter m on bm.matter_uno = m.matter_uno
left outer join hbm_client c on m.client_uno = c.client_uno
where b.total_bill_amt > 0.0
and bm.ar_status NOT IN ('P','X')
and ba.TRAN_TYPE in ('CR','crx')
group by c.client_code,b.bill_num,b.bill_date,ba.TRAN_DATE
select * from #tempG1
Drop Table #tempG1
I am not familiar with temp tables, but this should work (tested on a simliar scenario on MySQL8 and assuming that #tempG1 return results):
select
c.client_code,
b.bill_num,
b.bill_date,
ba.TRAN_DATE,
sum(datediff(Day,b.BILL_DATE, ba.TRAN_DATE)) as Days_To_Pay
from blt_bill b
left outer join blt_billm bm on b.tran_uno = bm.bill_tran_uno
left outer join BLT_BILL_AMT ba on bm.BILLM_UNO = ba.BILLM_UNO
left outer join hbm_matter m on bm.matter_uno = m.matter_uno
left outer join hbm_client c on m.client_uno = c.client_uno
where b.total_bill_amt > 0.0
and bm.ar_status NOT IN ('P','X')
and ba.TRAN_TYPE in ('CR','crx')
group by c.client_code,b.bill_num,b.bill_date,ba.TRAN_DATE
into #tempG1
############################
SELECT temp.client_code, AVG(temp.Days_To_Pay)
FROM (select * from #tempG1) as temp
GROUP BY temp.client_code
############################
#### Do you see results if drop? ####
Drop Table #tempG1
Note that I put #tempG1, at the bottom of your SELECT request, but might not be what want to achieve, not sure if you want to include your JOIN conditions or not.
Or you could do without temp table(including your join conditions):
SELECT temp.client_code, AVG(temp.Days_To_Pay)
(
select
c.client_code,
b.bill_num,
b.bill_date,
ba.TRAN_DATE,
sum(datediff(Day,b.BILL_DATE, ba.TRAN_DATE)) as Days_To_Pay
from blt_bill b
left outer join blt_billm bm on b.tran_uno = bm.bill_tran_uno
left outer join BLT_BILL_AMT ba on bm.BILLM_UNO = ba.BILLM_UNO
left outer join hbm_matter m on bm.matter_uno = m.matter_uno
left outer join hbm_client c on m.client_uno = c.client_uno
where b.total_bill_amt > 0.0
and bm.ar_status NOT IN ('P','X')
and ba.TRAN_TYPE in ('CR','crx')
group by c.client_code,b.bill_num,b.bill_date,ba.TRAN_DATE
) as temp
GROUP BY temp.client_code
This sounds like a simple aggregation:
select c.client_code, avg(datediff(Day, b.BILL_DATE, ba.TRAN_DATE)) as Days_To_Pay
from blt_bill b join
blt_billm bm
on b.tran_uno = bm.bill_tran_uno join
BLT_BILL_AMT ba
on bm.BILLM_UNO = ba.BILLM_UNO join
hbm_matter m on bm.matter_uno = m.matter_uno join
hbm_client c
on m.client_uno = c.client_uno
where b.total_bill_amt > 0.0 and
bm.ar_status not in ('P', 'X') and
ba.TRAN_TYPE in ('CR', 'crx')
group by c.client_code;
Note that you do not need outer joins. The where clause is turning most of them into inner joins anyway. Plus, if you are aggregating by the client code, then presumably you want a non-NULL value.
I am starting with this query, which works fine:
SELECT
C.ContactSys
, ... a bunch of other rows...
FROM Users U
INNER JOIN Contacts C ON U.ContactSys = C.ContactSys
LEFT JOIN UserWatchList UW ON U.UserSys = UW.UserSys
LEFT JOIN Accounts A ON C.AccountSys = A.AccountSys
WHERE
C.OrganizationSys = 1012
AND U.UserTypeSys = 2
AND C.FirstName = 'steve'
Now, I've been given this requirement:
For every visitor returned by the Visitor Search, take ContactSys, get the most recent entry in the GuestLog table for that contact, then return the columns ABC and XYZ from the GuestLog table.
I'm having trouble with that. I need something like this (I think)...
SELECT
C.ContactSys
, GL.ABC
, GL.XYZ
, ... a bunch of other rows...
FROM Users U
INNER JOIN Contacts C ON U.ContactSys = C.ContactSys
LEFT JOIN UserWatchList UW ON U.UserSys = UW.UserSys
LEFT JOIN Accounts A ON C.AccountSys = A.AccountSys
LEFT JOIN (SELECT TOP 1 * FROM GuestLog GU WHERE GU.ContactSys = ????? ORDER BY GuestLogSys DESC) GL ON GL.ContactSys = C.ContactSys
WHERE
C.OrganizationSys = 1012
AND U.UserTypeSys = 2
AND C.FirstName = 'steve'
Only that's not it because that subquery on the JOIN doesn't know anything about the outer tables.
I've been looking at these posts and their answers, but I'm having a hard time translating them to my needs:
SQL: Turn a subquery into a join: How to refer to outside table in nested join where clause?
Reference to outer query in subquery JOIN
Referencing outer query in subquery
Referencing outer query's tables in a subquery
If that is the logic you want, you can use OUTER APPLY:
SELECT C.ContactSys, GL.ABC, GL.XYZ,
... a bunch of other columns ...
FROM Users U JOIN
Contacts C
ON U.ContactSys = C.ContactSys LEFT JOIN
UserWatchList UW
ON U.UserSys = UW.UserSys LEFT JOIN
Accounts A
ON C.AccountSys = A.AccountSys OUTER APPLY
(SELECT TOP 1 gl.*
FROM GuestLog gl
WHERE gl.ContactSys = C.ContactSys
ORDER BY gl.GuestLogSys DESC
) GL
WHERE C.OrganizationSys = 1012 AND
U.UserTypeSys = 2 AND
C.FirstName = 'steve'
I want to make a stress test to a procedure than generate a .csv file.
The problem is that i have not enough data, so i want to duplicate data in my sql select .
The query look like this:
SELECT P.FST_NAME,
P.LAST_NAME,
P.EMAIL_ADDR,
P.PERSON_UID,
PR.FST_NAME PRSP_FST_NAME,
PR.LAST_NAME PRSP_LAST_NAME,
M.X_BAPRO_DT_01,
M.X_BAPRO_DT_02,
M.X_BAPRO_DT_03,
M.X_BAPRO_MONTO,
M.X_BAPRO_NUM_01,
M.X_BAPRO_NUM_02,
M.X_BAPRO_NUM_03,
M.X_BAPRO_TEXT_01,
M.X_BAPRO_TEXT_02,
M.X_BAPRO_TEXT_03,
M.X_BAPRO_TEXT_04,
M.X_BAPRO_TEXT_05
FROM SIEBEL.S_SRC C
left join SIEBEL.S_CAMP_CON M on C.ROW_ID = M.SRC_ID
left join SIEBEL.S_DMND_CRTN_PRG T on T.ROW_ID = M.DCP_ID
left join SIEBEL.S_CONTACT P on P.ROW_ID = M.CON_PER_ID
left join SIEBEL.S_PRSP_CONTACT PR on PR.ROW_ID= M.PRSP_CON_PER_ID
WHERE
C.ROW_ID <> p_row_id
So, This query return about 100 records, i want to retrive 1000 records and i dont really care if the data is duplicated.
You can add a cross join:
FROM SIEBEL.S_SRC C
left join SIEBEL.S_CAMP_CON M on C.ROW_ID = M.SRC_ID
left join SIEBEL.S_DMND_CRTN_PRG T on T.ROW_ID = M.DCP_ID
left join SIEBEL.S_CONTACT P on P.ROW_ID = M.CON_PER_ID
left join SIEBEL.S_PRSP_CONTACT PR on PR.ROW_ID= M.PRSP_CON_PER_ID
cross join (select 1 as n from dual union all
select 2 from dual
. . .
) x
You can also use the VALUE clause to construct the little "muliplier"-table as shown below:
SELECT ...
FROM SIEBEL.S_SRC C
left join SIEBEL.S_CAMP_CON M on C.ROW_ID = M.SRC_ID
left join SIEBEL.S_DMND_CRTN_PRG T on T.ROW_ID = M.DCP_ID
left join SIEBEL.S_CONTACT P on P.ROW_ID = M.CON_PER_ID
left join SIEBEL.S_PRSP_CONTACT PR on PR.ROW_ID= M.PRSP_CON_PER_ID
cross join (values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10)) tabl(n)
I have following query not working when I try to join all 4 tables (It is taking over an hour to run, I have to eventually kill the query without any data being returned).
It works when Table 1,2 & 3 are joined AND Then If I try Table 1,2 & 4 join but not when I attempt to join all 4 tables below.
Select * From
(Select
R.ID, R.MId, R.RId, R.F_Name, R.F_Value, FE.FullEval, M.Name, RC.CC
FROM Table1 as R
Inner Join Table2 FE
ON R.ID = FE.RClId and R.MId = FE.MId and R.RId = FE.RId
Inner Join Table3 as M
ON R.MId = M.MId and FE.MId = M.MId
Inner Join Table4 as RC
ON R.RId = RC.RId and FE.RId = RC.RId and FE.Date = RC.Date
) AS a
NOTE:
1) RId is not available in table3.
2) MId is not available in table4.
Thanks for help.
Since you mentioned that you don't have permission to view the query plan, try breaking down into each table join. You can also check which table join is taking time to retrieve records. From there, you can investigate the data why it's taking time. It may be because of non-availability of column keys in Table 3 and Table 4?
WITH Tab1_2 AS
(SELECT r.ID, r.MId, r.RId, r.F_Name, r.F_Value, fe.FullEval, fe.date
FROM Table1 as r
INNER JOIN Table2 fe
ON r.ID = fe.RClId
AND r.MId = fe.MId
AND r.RId = fe.RId
WHERE ... -- place your conditions if any
),
Tab12_3 AS
(SELECT t12.*, m.Name
FROM Tab1_2 t12
INNER JOIN Table3 as m
ON t12.MId = m.MId
WHERE ... -- place your conditions if any
),
Tab123_4 AS
(SELECT t123.ID, t123.MId, t123.RId, t123.F_Name, t123.F_Value, t123.FullEval, rc.CC
FROM Tab12_3 t123
INNER JOIN Table4 as rc
ON t123.RId = rc.RId
AND t123.Date = rc.Date
WHERE ... -- place your conditions if any
)
SELECT *
FROM Tab123_4 t1234