Three Table Join - Display Newest Comments Left On Photos Created By Members
Jul 6, 2014
I am trying to tweak some code which is used to display the newest comments left on photos created by my members.
The existing code is this:
SELECT top 15 pnumber,pcomment,puser FROM photocomments order by pdate DESC
So the latest comment left was for photo #210879 from user "Cla" (redacted user names). The 2nd newest comment would be for photo #211072 from a member named "mo". pdate is a date field
However for the script I have coded I don't want all of the photo comments to show up. This is because I use access levels based on the type of location (higher levels mean more restricted galleries). I check the access levels as I go through the recordsets.
I use this method to get the top 15 comments:
SELECT top 15 pnumber,pcomment,puser FROM photocomments order by pdate DESC
Now I have to use two other tables to determine the access level. Since PHOTOCOMMENTS is just a list of photo #'s and the people who left comments for those photos, I need to:
a) determine what location the photo is from and
b) determine the access level of that location
I use: select creator,access from locations where id=(select dir from photos where id="&pnumber&")"
This is a two step process as you can see. The first part is:
select dir from photos where id=(pnumber)
ID is the same value as pnumber seen in PHOTOCOMMENTS. That is to say PHOTOS.ID = PHOTOCOMMENTS.PNUMBER
If I haven't confused you yet, the executed code for the first example would be:
select dir from photos where id=210879
which would get me a value for DIR. DIR is the location number which would be:
select creator,access from locations where id=(dir value)
Just to simplify it a bit....
There are three tables (shown below)
PHOTOCOMMENTS
PHOTOS
LOCATIONS
I need to: SELECT top 15 pnumber,pcomment,puser FROM photocomments order by pdate DESC (first table shown)
but then also
select creator,access from locations (The last table shown)
where id=(select dir from photos where id="&pnumber&")"
So the first table PHOTOCOMMENTS has to also join PHOTOS table where PHOTOS.DIR = PHOTOCOMMENTS.PNUMBER in order to get the value of "DIR" and then DIR is joined to the LOCATIONS tables where PHOTOS.DIR = LOCATIONS.ID
Here is the actual code, which I am trying to make into a single SQL command
strSQL = "SELECT top 15 pnumber,pcomment,puser FROM photocomments order by pdate DESC"
set ors = oconn.Execute(strSQL)
tl = 0
do until ors.eof or tl > 15
' until we have 15 results because not every recordset will be of the proper security level
[Code] ....
Bonus points if you can also get it to select from LOCATIONS only WHERE userlevel >= 2
SELECT PR.WBS1, PR.WBS2, ledgerar.invoice, SUM(CASE WHEN ledgerar.transtype = 'in' AND ledgerar.period = '200405' THEN ledgerar.amount * - 1 END) AS amount FROM PR LEFT OUTER JOIN LedgerAR ON LedgerAR.WBS1 = PR.WBS1 AND LedgerAR.WBS2 = PR.WBS2 AND LedgerAR.WBS3 = PR.WBS3 WHERE (LedgerAR.wbs1 = '001-333') AND ledgerar.period = '200405' GROUP BY pr.wbs1, pr.wbs2, ledgerar.invoice
But I don't know how to get the query to display all of wbs2 whether it is null or not. So, for each invoice number there should be five records according to the wbs2 codes (500, 100, 140, 150, 160)
SELECT * FROM a LEFT OUTER JOIN b ON a.id = b.id instead of
SELECT * FROM a LEFT JOIN b ON a.id = b.id
generates a different execution plan?
My query is more complex, but when I change "LEFT OUTER JOIN" to "LEFT JOIN" I get a different execution plan, which is absolutely baffling me! Especially considering everything I know and was able to research essentially said the "OUTER" is implied in "LEFT JOIN".
I was writing a query using both left outer join and inner join. And the query was ....
SELECT S.companyname AS supplier, S.country,P.productid, P.productname, P.unitprice,C.categoryname FROM Production.Suppliers AS S LEFT OUTER JOIN (Production.Products AS P INNER JOIN Production.Categories AS C
[code]....
However ,the result that i got was correct.But when i did the same query using the left outer join in both the cases
i.e..
SELECT S.companyname AS supplier, S.country,P.productid, P.productname, P.unitprice,C.categoryname FROM Production.Suppliers AS S LEFT OUTER JOIN (Production.Products AS P LEFT OUTER JOIN Production.Categories AS C ON C.categoryid = P.categoryid) ON S.supplierid = P.supplierid WHERE S.country = N'Japan';
The result i got was same,i.e
supplier country productid productname unitprice categorynameSupplier QOVFD Japan 9 Product AOZBW 97.00 Meat/PoultrySupplier QOVFD Japan 10 Product YHXGE 31.00 SeafoodSupplier QOVFD Japan 74 Product BKAZJ 10.00 ProduceSupplier QWUSF Japan 13 Product POXFU 6.00 SeafoodSupplier QWUSF Japan 14 Product PWCJB 23.25 ProduceSupplier QWUSF Japan 15 Product KSZOI 15.50 CondimentsSupplier XYZ Japan NULL NULL NULL NULLSupplier XYZ Japan NULL NULL NULL NULL
and this time also i got the same result.My question is that is there any specific reason to use inner join when join the third table and not the left outer join.
I have state, day_date, error, and text column. If there is data then it is showing all the columns. But if there is no comments I would like to show no comments in the text field. Currently I have this store procedure.
CREATE PROCEDURE dbo.up_daily_quad_text
@DAY_DATE datetime
AS
BEGIN
SELECT
dbo.adins_database.ZONE_NAME + ', ' + dbo.adins_database.ZONE_STATE AS [STATE AND LOCATION],
dbo.COMMENT_CATEGORY.NAME,
dbo.COMMENT.TEXT
FROM
dbo.adins_database,
dbo.COMMENT_CATEGORY,
dbo.COMMENT,
dbo.DIM_DATE
WHERE
( dbo.adins_database.adins_id=dbo.COMMENT.adinsdb_id OR (dbo.COMMENT.adinsdb_id is Null) )
AND ( dbo.COMMENT.comment_dt=dbo.DIM_DATE.DAY_DATE )
AND ( dbo.COMMENT_CATEGORY.category_id=dbo.COMMENT.category_id )
AND
dbo.DIM_DATE.DAY_DATE = @DAY_DATE
END
GO
GRANT EXECUTE ON dbo.up_daily_quad_text TO AdIns_SSRS
To join the table but MUST follow the condition as bitActiv = TRUE: select emp.nvcEmpName, emp.nvcEmpAddress, ety. nvcEmployeeType from cst_EmpProfile emp left join cst_EmpType on emp.intEmployeeTypee = ety.intEmpType and emp.bitActiv = 1.
But, the sql statement doesnt output the my expected result. Because the data row return must be 1st and 2nd row as it bitActiv = true. So, how's I going achieve what i want. tq.
I am using stored procedure to load gridview but problem is that i am not getting all rows from first table[ Subject] on applying conditions on second table[ Faculty_Subject table] ,as you can see below if i apply condition :-
Faculty_Subject.Class_Id=@Class_Id
Then i don't get all subjects from subject table, how this can be achieved.
Sql Code:- GO ALTER Proc [dbo].[SP_Get_Subjects_Faculty_Details] @Class_Id int AS BEGIN
I have an problem with the order of the results after a join.
My first query works fine and the order of field Name ist correct.
Select * FROM (SELECT * FROM dtree A1 WHERE A1.Subtype=31356 AND A1.DataID IN (select DataID from dtreeancestors where AncestorID=9940974)) t
When I do a join the order of the left table changes
Select * FROM (SELECT * FROM dtree A1 WHERE A1.Subtype=31356 AND A1.DataID IN (select DataID from dtreeancestors where AncestorID=9940974)) t, llattrdata A4 WHERE t.DataID = A4.ID
How can I do a join and keep the order of the left table?
I have a query that include a single LEFT JOIN. I would like to be able to select at most 1 row of the second table (providing that the JOIN represents a one to many relationship).
Does anyone knows how to do that? Thanks in advance, Joannès
I have a query that has a left join with a large partitioned table. The partitioned table has 10s of millions of records, and each partition has about 100,000 records.
The left join is part of an insert that gets a column from the partitioned table, if the column exists. The query contains the partition ID and all other joined columns are part of a non-clustered index.
Through the profiler, I found that there were millions of reads and the execution plan was giving me a table scan on the partitioned table.
I changed the query to do the insert followed by an update with inner join. That did the trick, but it worries me that SQL Server 2014 behaves differently from 2012 or 2008R2, which can make upgrading very time consuming.
I am still new to SQL and I am having trouble obtaining the results I need from a query. I have worked on this command for some time and searched the internet but cannot seem to still get it correct.
I have a table called Patient. It's primary key is pat_id.
I have a second table called Coverage. It has no primary key. The foreign keys are pat_id, coverage_plan_id, and hosp_status.
I have a third table called Coverage_History. It has a primary key consisting of pat_id, hosp_status, copay_priority, and effective_from.
I want to get the pat_id and all the coverage information that is current. The coverage table contains specific insurance policy information. The coverage_history table will indicate the effective dates for the coverage. So the tables could contain something like this:
Patient (pat_id and lname) P123 Monto P124 Minto P125 Dento P126 Donto
Coverage (pat_id, coverage_plan_id, hosp_status, policy_num) P123 MED1 OP A1499 P123 ACT4 OP H39B P124 MED1 OP C90009 P124 RAC OP 99KKKK P124 RAC OP 99KKKK P124 MED1 OP C90009 P125 ARP OP G190 P126 BCB OP H88
Coverage_History (pat_id, hosp_status, copay_priority, effective_from, coverage_plan_id, effective_to) P123 OP 1 20150102 MED1 NULL P123 OP 2 20150102 ACT4 NULL P124 OP 1 20150203 RAC 20150430 P124 OP 2 20150203 MED1 20150430 P124 OP 1 20150501 MED1 NULL P124 OP 2 20150501 RAC NULL P125 OP 1 20150801 ARP NULL P126 OP 1 20150801 BCB 20160101
select p.pat_id, p.lname, ch.coverage_plan_id, ch.hosp_status, ch.effective_from, ch.effective_to, ch.copay_priority, from patient p left join ( coverage_history ch left join coverage c on ch.coverage_plan_id = c.coverage_plan_id and ch.patient_id = c.patient_id and (ch.effective_to is NULL or ch.effective_to >= getdate() ) ) on ch.patient_id = p.patient_id
where ( ch.effective_to is NULL or ch.effective_to >= getdate() )
So I want to see:
P123 Monto MED1 OP 20150102 NULL 1 P123 Monto ACT4 OP 20150102 NULL 2 P124 Minto MED1 OP 20150501 NULL 1 P124 Minto RAC OP 20150501 NULL 2 P125 Dento ARP OP 20150801 NULL 1 P126 Donto BCB OP 20150801 20160101 1
I have created a few calculated members under one dimension (meaning the parent dimension is not Measures, but other dimensions). It can be showed in the Analysis Manager, but cannot be displayed in MS Excel PivotTable (MS Office 2k, xp, even 2003). Is there any solution to display the calculated members (as with the dimension) in Excel PivotTable? vba code needed? service pack needed?
Looking to improve performance of the following code.
It basically generates future days for each dog. So there is a dog table and a day table with every day.
These 2 table cross join and then fill in missing rows. As time moves i will fill in further future dates but will need the initial insert to be a reasonable query.
All columns are covered by index's but the queries at the end take quite a long time. I would hope for index scan to just point out the missing rows especially on the final query.
How to make the last query as fast as possible.
IF OBJECT_ID('dbo.[AllDates]', 'U') IS NOT NULL DROP TABLE dbo.[AllDates] CREATE TABLE dbo.[AllDates] ( [Date] date not null PRIMARY KEY ) ;WITH Dates AS
Hello all I am new to this site. I am trying to use ASP.NET to build an application but I am not sure how to add photos and other data to the sql table that I have created.
OLEDB source 1 SELECT ... ,[MANUAL DCD ID] <-- this column set to sort order = 1 ... FROM [dbo].[XLSDCI] ORDER BY [MANUAL DCD ID] ASC
OLEDB source 2 SELECT ... ,[Bo Tkt Num] <-- this column set to sort order = 1 ... FROM ....[dbo].[FFFenics] ORDER BY [Bo Tkt Num] ASC
These two tasks are followed immediately by a MERGE JOIN
All columns in source1 are ticked, all column in source2 are ticked, join key is shown above. join type is left outer join (source 1 -> source 2)
result of source1 (..dcd column) ... 4-400-8000119 4-400-8000120 4-400-8000121 4-400-8000122 <--row not joining 4-400-8000123 4-400-8000124 ...
result of source2 (..tkt num column) ... 4-400-1000118 4-400-1000119 4-400-1000120 4-400-1000121 4-400-1000122 <--row not joining 4-400-1000123 4-400-1000124 4-400-1000125 ...
All other rows are joining as expected. Why is it failing for this one row?
Why would I use a left join instead of a inner join when the columns entered within the SELECT command determine what is displayed from the query results?
Why does this right join return the same results as using a left (or even a full join)?There are 470 records in Account, and there are 1611 records in Contact. But any join returns 793 records.
select Contact.firstname, Contact.lastname, Account.[Account Name] from Contact right join Account on Contact.[Account Name] = Account.[Account Name] where Contact.[Account Name] = Account.[Account Name]
Hi!I want to do a query against a SQL DB and by sorting a datetime field, I want to get the second newest record in the table, not the newest.Can I do that?/Johan Ch
I'm trying to join 2 tables. I thought I was getting the correct results but it turns out I'm not. My Query: SELECT IVINVA, IVORDN, IVCSLN, IVRESR, IVCITM, CONVERT(varchar(12),CAST(IVIAMT as money),1) AS ExtPrice, CONVERT(varchar(12),CAST(IVPIVC as money),1) AS DistPrice, IVCSUM, IVQYCS, IVDESC, OIRESR, OIDPCT, CONVERT(varchar(12),CAST(IVPIVC - (OIDPCT / 100 * IVPIVC) as money),1) AS NetPrice FROM INVDET1_TBL LEFT JOIN ORDDIS_TBL ON ORDDIS_TBL.OIORDN = INVDET1_TBL.IVORDN AND ORDDIS_TBL.OIRESR = INVDET1_TBL.IVRESR WHERE IVORDN = '0859919' AND IVINVA = '00324024' Basically, my problem lies in the seonc condition of the LEFT JOIN. I needed to set the two tables equal my item number, because in some situations I need that logic to get the correct result. It most other cases, that item column in the ORDDIS_TBL is NULL, thus giving me the wrong results. In that case, I would want the JOIN to only be ORDDIS_TBL.OIORDN = INVDET1_TBL.IVORDN, and not include the second part. Is there a way I can condition this with an If statement, If ORDDIS_TBL.OIRESR is Null then do this join, if not, then do this? I'm confused how to get the proper result here.
3) select p.komorka,isnull(sum(ustalenia),0) from #plantemp p left join analiza_1 a on p.komorka=a.komorka where a.koniec between '20040701'and '20040731' group by p.komorka
komorka ustalenia (sum)
08.0000 SI/1788138.9300 SI/262856.8900
I need all rows from table 1 bat right and left join gives me the same results, WHY
As you can see the ParentIndexID and ChildIndexID fields refer to tblIndices.IndexID I would like a stored procedure as follows: show all index names and show the wights for the indexID you passed. This is what I have so far and it is not correct yet. Not sure what the syntax should be.
alter PROCEDURE [dbo].[uspBasketIndices_Get]
@IndexIDint
AS
select i.IndexID, i.[Name], bc.Weight from tblIndices as i left join tblBasketConstituents as bc on i.IndexID = bc.ParentIndexID and i.IndexID = @IndexID order by i.[Name]
Any one know any facts and figures about maximum Left Joins allowed (or recommended) in one query?
I am running a MS SQL 2000 my database is full of relational data and most of my foreign keys (INT data type) are a Clustered Indexed, Usually I will only be pulling one record from collection of about a dozen tables, but the Database is expected to grow fast and become big.
Right now I have a Stored Proc that has eight(8) LEFT JOINs in it. My worry is that this query will kill me as the database approaches 50,000 records.
Hi all. My query works fine, it generates reports but not my expected result.
select d.fullname, p.nickname, p.birthdate, p.birthplace, p.gender, p.civilstatus, p.religion, p.nationality, p. weight, p.height, p.haircolor, p.eyecolor, p.complexion, p.bodybuilt, p.picture, p.dialectspoken, d.mobilephone, d.prprovince,[Age] = dbo.F_AGE_IN_YEARS( birthdate, getdate() ), c.name, c.address, c.telno, c.email, c.occupation, ed.year1, ed.year2, ed.degree, sch.schname from hremployees as e inner join psdatacenter as d on e.empdcno = d.dcno inner join pspersonaldata as p on e.empdcno = p.dcno left join hrappempcharrefs as c on e.empdcno = c.empdcno left join hrappempeducs as ed on e.empdcno = ed.empdcno left join hrsetschools as sch on ed.schoolcode = sch.schcode
the above query gives a 77 records
if i ran "select * from hremployees" generates 60 records
i think the error is in the left joining. hrappempcharrefs, hrappempeducs and hrsetschools must be left joined to hremployees.
