JOINS To Sub-Queries -vs- JOINS To Tables
Aug 11, 2005
SQL Server 2000
Howdy All.
Is it going to be faster to join several tables together and then
select what I need from the set or is it more efficient to select only
those columns I need in each of the tables and then join them together
?
The joins are all Integer primary keys and the tables are all about the
same.
I need the fastest most efficient method to extract the data as this
query is one of the most used in the system.
Thanks,
Craig
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Jan 16, 2008
I recently learnt that there is a different approach to create "Joins" whilst developing an ASP .Net application. Usually i have databases that have relationships (JOINS) created etc so i never did this e.g. if i wanted to retrieve data from another table i would have done something like this:
JOIN - What I use to do....
SELECT Products.ProductID, Products.ProductName, Products.SupplierID, Products.QuantityPerUnit, Products.UnitPrice, Products.UnitsInStock,
Products.UnitsOnOrder, Products.ReorderLevel, Products.Discontinued, Categories.CategoryName, Suppliers.CompanyName,
Products.CategoryID
FROM Products INNER JOIN
Categories ON Products.CategoryID = Categories.CategoryID INNER JOIN
Suppliers ON Products.SupplierID = Suppliers.SupplierID
Today i learnt this:
Sub Query without JOINS
SELECT ProductID, ProductName, SupplierID, CategoryID, QuantityPerUnit, UnitPrice, UnitsInStock, UnitsOnOrder, ReorderLevel, Discontinued,
(SELECT CategoryName
FROM Categories
WHERE (CategoryID = Products.CategoryID)) AS CategoryName,
(SELECT CompanyName
FROM Suppliers
WHERE (SupplierID = Products.SupplierID)) AS SupplierName
FROM Products
The second code (Sub query) seems to be easily readable but fairly difficult to create to a certain degree. So my question is which method should i use for development purposes? Is there any real difference or just ok to use whichever im comfortable with?
Thanks in advance
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Jul 9, 2004
Fan of Sub's and I feel more comfortable doing them, I've been told they aren't as efficient as JOIN's by another developer. Is this true?
Also, does one or the other perform better on SQL Server vs. Oracle? I'm more seasoned as an Oracle developer and have learned to avoid JOIN's when ever possible. So I guess my real question is have I been led astray?
:o
Thanks in advance, DBA's Rule!
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Nov 3, 2000
We find that a delete command on a table where the rows to be deleted involve an inner join between the table and a view formed with an outer join sometimes works, sometimes gives error 625.
If the delete is recoded to use the join key word instead of the = sign
then it alway gives error 4425.
625 21 0 Could not retrieve row from logical page %S_PGID by RID because the entry in the offset table (%d) for that RID (%d) is less than or equal to 0. 1033
4425 16 0 Cannot specify outer join operators in a query containing joined tables. View '%.*ls' contains outer join operators.
The delete with a correleted sub query instead of a join works.
Error 4425 text would imply that joins with view formed by outer joins should be avoided.
Any ideas on the principles involved here.
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Oct 11, 2006
I have a query that works fine in SQL Server,
SELECT TC.[TestId]
,TS.[NameId]
,[regressionLevel]
,Mstr.[MethodId]
,users.[UserId]
FROM [db_db].[dbo].[TEST] TC
join
[NEW_DB].[dbo].[Users]users
on
users.FirstName=TC.Username
join
[New_DB]..[Method_Master] Mstr
on
Mstr.Description=TC.Method
join
[New_DB]..[TestSource] TS
on
TS.Name = TC.TestName
basically there is a join between three tables to repalce all the varchars to the corresponding ID.
Please guide me in how should I go about in designing my SSIS package to achieve this requirement.
thanks in Advance
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Jun 19, 2014
Table CYCLE has two columns
id
name
Table TEST has two columns
id
name
Table TESTCYCL has three columns
id
cycle_id (reference to id field in CYCLE table)
test_id (reference to id field in TEST table)
I need SQL to get CYCLE.name and TEST.name. If there is no associated row in the TEST table, I still want the CYCLE.name.
SELECT CYCLE.name, TEST.name
FROM CYCLE
JOIN TESTCYCL ON TESTCYCL.cycle_id = CYCLE.id
JOIN TEST ON TEST.id = TESTCYCLE.test_id
This only returns rows from CYCLE where there is a related row in TEST. I need all rows from CYCLE whether there is a row in TEST or not.
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Dec 21, 2005
Imran writes "Hello there
This is Imran, will pray for you if u help me out with this problem
I have 2 tables
Developments
------------
->DevelopmentId - AutoNum
ProjectName
Development_Pictures
--------------------
->Auto
DevelopmentId
PicName
PicType
The two tables are linked by DevelopmentId. Each record in developments can have many related records in Development_Pictures.
Now i want all records from Developments
along with the PicName. The thing is that only to show
picName where the PicType is 'Big'
ProjectName, PicName
Thank You
where the "
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May 14, 2007
Hi,
How can I do this using INNER JOIN:
4.From tables RubricReport, RubricReportTemplate, RubricReportDetail and SppTarget, get columns:
a.RubricReport
i.ReportID
ii.LastUpdate
iii.LastUpdateBy
b.RubricReportTemplate
i.IndicatorNumber
ii.Topic
iii.Part
iv.ILCDComponent
c.RubricReportDetail
i.LocalPerf
ii.GoalMet
d.SppTarget
i.Target
5.Matching these columns in the above four tables:
a.RubricReport.ReportID=RubricReportDetail.ReportID
b.RubricReportDetail.IndicatorID=RubricReportTemplate.IndicatorID
c.SppTarget.IndicatorNumber=RubricReportDetail.IndicatorNumber
d.SppTarget.Years=@DataYears
I have looked a lot but couldn't find INNER join for three tables.
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Aug 3, 2007
Hi All,
I require to perfom a join on 3 tables within the same query . To explain myself better i have 3 tables
Main table
Label table
textbox table
The Main table contains the common fields in both the label and textbox table. While the label and textox table contain the fields that are sepcfic to them .
MAIN Table
pk Moduleid ItemName itemtype
36
372
test1
4
37
372
test2
4
38
372
test3
4
39
372
test4
6
40
372
test5
4
label
pk Main_fk labeltext
4
36
labeltext1
5
37
labeltext2
6
38
labeltext3
7
40
labeltext4
Textbox
pk Main_fk textboxtext
1
39
textbox1
I did infact manage to perform a join on these these tables.
Select * From tb_Main
inner join tb_Label
on tb_Main.pk = tb_Label.main_fk
where moduleID = @moduleID
Select * From tb_Main
inner join tb_textbox
on tb_Main.pk = tb_textbox.main_fk
where moduleID = @moduleID
The problem is that it returns two separate results . I require a join on the label and textbox table within the same query to return one result.
Is what im asking possible? I would appreciate if some exmaples are posted
I have no control on the design of the tables as i didnt create them but still if anyone has a suggestion on improving them please do ,so i can tell my colleague that they aren't designed well !!!!
Thanks in advance
Matt
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Jun 14, 2001
Is it possible to utilize more than two tables in a single outer join?
I have one table that I want every row and 18 others where I only want an entry if one is present meeting the conditions of "1.customerid = 2.Customerid" etc. I haven't run across this before and would appreciate any help.
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Dec 7, 2013
Table 1:
id amount
1 100
2 200
3 300
4 400
Table 2:
id amount
1 100
1 100
2 200
3 300
4 null
Table 3:
id amount
1 null
2 200
2 200
3 300
3 200
4 null
id is common for each tables , how can i get output like this:
Collapse | Copy Code
id t1 t2 t3
1 100 200 null
2 200 200 200
3 300 300 500
4 400 null null
I am stuck with this query .
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Feb 4, 2015
I have a general question concerning joins. Below is a table scenario:
SELECT *
FROM TABLE_A T0
INNER JOIN TABLE_B T1 ON T1.[Some_Column] = T0.[Some Column]
LEFT JOIN TABLE_C T2 ON T2.[Some_Column] = T0.[Some Column]
Does the above indicate that all records in common between TABLE_A & TABLE_B will be returned, then the records from TABLE_C will be joined to the initial 'result set' (that is the result of joining TABLE_A & TABLE_B), or will TABLE_C simply be joined to TABLE_A regardless of the inner join between TABLE_A & TABLE_B?
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Jul 20, 2005
I am writing a download process in which i have a condition where ineed to join four tables. Each table have lot of data say around300000 recs.my question is when i am doing the joins on the columns is there anyspecific order i need to follow.for exampleMy original query looks like thisselect a.col1,a.col2from ainner join bon a.id1=b.id1and a.id2=b.id2inner join con c.id1=b.id1and c.id2=b.id2inner join don d.id1=c.id1and d.id2=c.id2If i change the query like below... does it make any differenceselect a.col1,a.col2from ainner join bon b.id1=a.id1and b.id2=a.id2inner join con c.id1=a.id1and c.id2=a.id2inner join don d.id1=a.id1and d.id2=a.id2Any help is appreciated.ThanksSri
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Oct 30, 2006
I had a SP to generate a recordset for a MIS report. It had 11 temp tables , basically taking data from real tables , performing some aggregation and counts and passin on the records to a temp table which gave the result as desired ..ofcourse with some group by clauses...
Now i replaced these temp tables (most of them..left with just 2), and used derieved tables instead in the final query..and joins which will execute with each query iteration..something of the sort
select col1,co2 ,
(select count(id) from sometable x group by sayaccount where x.id = temp.id) ,
(select sum(id) from (select count(id) from sometable group by sayaccount) DERIVED_Tab),
......
from #finaltemp temp
group by col1.....
(earlier the count was stored in 1 temp table, then sum one n stored in other).
the idea was to reduce the execution time...but i din achieve it...not with just a single user running the report i.e , rather it marginally increased. my thinking was that i'll be avoiding the locks on tempdb by reducing the number of temp tables....pls tell me if im goin wrong...i still have the option of using table datatype if thats feasible..
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Jul 20, 2005
Hi, all:This is probably a simple problem, but, as an SQL newbie, I'm having alittle trouble understanding multi-joins and subqueries.I have the following tables and columns:MemberTable-----MemberID (primary key)MemberNameAddressCountryFoodsTable------FoodID (primary key)FoodNameMusicTable-----MusicID (primary key)MusicNameMoviesTable-----MoviesID (primary key)MoviesName....and their linking tables...Members2FoodsTable-----MemberID (foreign key)FoodsID (foreign key)Members2MoviesTable-----MemberID (foreign key)MoviesID (foreign key)....and so forth.Now what I'm trying to do is retrieve a specific MemberID, his address info(from the Members table), and get a listing of his favorite Movies, Foods,Music, etc. I know I probably need to JOIN tables, but where do I JOIN thetables? Do I have to JOIN the various Music/Foods/Movies tables or is itthe Music/Members2Music and Foods/Members2Foods, etc. tables? And I assumeI would probably need to perform a subquery somewhere?I realize I'll need to first filter the Members, Members2Music,Members2Foods, etc. tables by the MemberID, and afterwards, retrieve alisting of the actual Music/Foods/Movies names. I'm just confused how to dothat. (By the way, I have a total of 10 other tables or in addition toMusic, Foods, etc. so it's a lot of table JOINing.)If someone could please help me out with the actual SQL coding, I'd reallyappreciate it!Thanks for the help!J
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Sep 26, 2006
I have an stp where I want to return a Recordset via a SELECT that joins 3 temp tables...
Here's what the temp tables look like (I am being brief)...
CREATE TABLE #Employees (EmpID INTEGER, EmpName NVARCHAR(40))
CREATE TABLE #PayPeriods (PayPeriodIndex INTEGER, StartDate DATETIME, EndDate DATETIME)
CREATE TABLE #Statistics (EmpID INTEGER, PayPeriodIndex INTEGER, HoursWorked REAL)
The #Employees table is populated for all employees.
The #PayPeriods table is populated for each calandar week of the year (PayPeriodIndex=0 to 51).
The #Statistics table is populated from data within another permanent table.
Some employees do not work all 52 weeks.
Some employees do not work any of the 52 weeks.
So, the #Statistics table doesn't have all possible combinations of Employees and PayPeriods.
I want to return a Recordset for all possible combinations of Employees and PayPeriods...
Here's a SELECT that I have used...
SELECT e.EmpId, e.Name, pp.PayPeriodIndex, ISNULL(s.HoursWorked,0)
FROM #Statistics s
LEFT OUTER JOIN #Employees e....
LEFT OUTER JOIN #PayPeriods pp ....
WHERE s.EmpId = e.EmpId
AND s.PayPeriodIndex = pp.PayPeriodIndex
I have had no luck with this SELECT.
Can anybody help???
TIA
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Nov 12, 2015
I have to write a report using SSRS using a cube somebody (no longer here) created. I know SSRS and SQL very well, but have never worked with cubes.
I want to make sure the cube was properly constructed (in terms of table/join relationships). I cannot find the tables/joins. I looked in SSMS under Data Source Views and everything else I could think of (or google).
Is it possible I don't have permissions?
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Oct 12, 1999
Hi,
Why is it that SQL joins (*=) run a little faster as opposed to ANSI joins(LEFT JOIN...)? Aren't they supposed to be almost identical?
The issue is this: we are promoting using ANSI syntax for the obvious reason (future versions of SQL Server may not support SQL Server syntax; portability, etc.)
However, the problem is the speed. What have others done about this? Do you use ANSI syntax or SQL syntax? HOw true is it that future SQL Server versions may discontinue support for the '*=" and "=*' join operators.
Angel
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Feb 29, 2008
I have four tables which I want to return results for an advanced search function, the tables contain different data, but can be quite easily joined,
Table A Contains a Main Image, this image is displayed in the results
Table B Contains an Icon, this image is displayed in the results
Table C doesn't have an image in it but has a child table with a number of images associated to the table, in the UNION ALL statement I would Like to do a Join to get say the top Image from this child and print it for the row associated with table C.
Select title, description, image from tableA
UNION ALL
Select title, description, icon as image from tableB
UNION ALL
title, description, ( inner Join SELECT top(1)
from imageTableC where imagetableC.FK = tableC.PK)
as image from tableC
Could someone show me the syntax to do this, I have all the information printing to the screen, bar this table C image.
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Jan 22, 2014
Assume i have 3 tables
Person(personname,age)
Children(childname,personname)
car(carname,personname)
A persone can have multiple cars
A person can have multiple children
Its not possible to display the results in SQL rows and columns.
If i try to it will give
PersonName Carname Childname
Sachin Audi C1
Sachin Maruti C1
Sachin Audi C2
Sachin Maruti C2
Instead of writing seperate queries the application wants to receive an xml output as follows
<person>
<pname>sachin</pname>
<car>audi</car>
<car>bmw</car>
<cname>c1</cname>
<cname>c2</cname>
<person>
How to get this output ?
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Mar 15, 2006
I'm new to ms-sqlserver ( 2000 ) and need to get an OUTER JOIN workingon a three table query.Assumptions:-- I have events in the Event table.-- Each event CAN have one Transaction, but it's not guaranteed-- Each transaction, ir present, will have one or more Amount recordsThis would be the pseudo-query without any special joins:-----------------------------------------SELECTa.Name,SUM( c.amount ) as TotalFROMEvent a,Transaction b,Amounts cWHEREa.EventID = b.EventIDANDb.TransID = c.TransID-----------------------------------------This is fine if there is a Transaction for the Event. But, if there'sno transaction for an event, no record is pulled of course.What I need is for a record to come back for each event regardless ofthe presence of a Transaction. If there's no transaction, then the"Total" column should be 0.How would I get an OUTER JOIN to work on this so that each Event gets arecord?TIA-BEP
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Sep 14, 2015
I have 3 tables.
Table 1:
ID Name Description
1 ABc xyz
2 ABC XYZ
Table 2:
RoleID Role
1 Admin
2 QA
Table 3:
ID RoleID Time
1 1 09:14
2 1 09:15
1 2 09:16
Now I want all the records which belongs to RoleID 1 but if same ID is belongs to RoleID 2 than i don't want that ID.From above tables ID 1 belongs to RoleID 1 and 2 so i don't want ID 1.
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Sep 1, 2005
Hi All,
Im having a problem with a statement i cannot seem to get 2 left joins working at the same time 1 works fine but when i try the second join i get this error:-
Microsoft OLE DB Provider for ODBC Drivers error '80040e14'
[Microsoft][ODBC Microsoft Access Driver] Syntax error (missing operator) in query expression 'children_tutorial.school_id=schools.idx LEFT JOIN regions ON children_tutorial.region_id=region.idx'.
My SQL statment is as follows :-
SELECT children_tutorial.*,schools.schoolname,regions.rname FROM children_tutorial LEFT JOIN schools ON children_tutorial.school_id=schools.idx LEFT JOIN regions ON children_tutorial.region_id=region.idx
I am using an Access database i have tried all sorts to get it working and its driving me mad!! any help would be really appreciated.
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Jan 27, 2004
When I add a constraint to the where part of the SQL statement below it will only show the nc_department.department where siteid equals it. How do I pull and display all of those departments regardless of where the siteid = the selected item? In other words doesnt the Left outer Join supposed to grab all contents from the left table regardless?
SQL = "SELECT nc_department.order_id, nc_department.department, Count(nonconformance.department_id) as 'events', ISNULL(SUM(nonconformance.nc_wafer_qty),0) as wafers FROM nc_department LEFT OUTER JOIN nonconformance ON nc_department.department_id = nonconformance.department_id WHERE nc_department.active = '1' AND nonconformance.site_id = '" & siteid.SelectedItem.Value & "' GROUP BY nc_department.department , nc_department.order_id"
thanks in advance
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May 21, 2001
JOIN MUDDLE
Soory if this is a bit basic, but I'm chasing my tail:
I have two select statements:
SELECT MyRows from Table1 where X = 1
SELECT OtherRows From Table 2 Where y = 3
I want to produce a LEFT JOIN between the result of each query, and return the resultant rows
I know this is not correct syntax:
(SELECT MyRows from Table1 where X = 1)
LEFT JOIN
(SELECT OtherRows From Table 2 Where y = 3)
ON
Tabel1.Row1 = Table2.Row2
but I think it illustrates what I want to do
If I do the WHERE after the join I only get where there is a righthand table
I cant get the syntax right, an example with the correct grammar would be very much appreciated
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May 25, 2001
I am trying to figure out which Option is the best/fastest and why?
I have simplified the query a lot. The actual query consists of lots of tables.
OPTION A (the search for the specific id is in the JOIN)
select * from table A left join table B on a.id = b.id and a.id in (1,2,3)
OR
OPTION B(the search for specific id is in the WHERE clause)
select * from table A left join table B on a.id = b.id
where a.id in (1,2,3)
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Jun 29, 2000
Could somebody please tell me why we should never mix old-style and ANSI-style joins in the same query? What would be the consiquences?
Thank you
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Nov 16, 1999
Instead of inserting into, how can I use a join of multiple
tables to update a table.
This is the join that inserts.
INSERT INTO [table] (MyID, material, dollars)
SELECT l.MyID, material, dollars
FROM Tab_Client_Input l left outer JOIN
Tab_Special_tox r ON l.MyID = r.MyID
Thanks in advance
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Dec 15, 2007
can somebody give a good explanation of uisng a self join with an example
that would really help
thks
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Jun 23, 2004
Hi Folks,
I writing a store procedure, the first three parts work pretty well. The last select statement has about 8 outer joins in it. every time I run the store procedure, I get an error message for the last part. Below are the error message and the store procedure:
Store Procedure:
--Create Procedure dbo.IMS_Donation
--AS
Select Distinct D_VST_ID as 'DRWLOC_ID', D_VST_INSTID as 'DRWLOC_INSTID'
Into Donor_Visit1
From DNR_VST_DB_REC
Where D_VST_DATE Between 20010101 AND 20040512
AND D_VST_DONTYP in ('AP', 'WB', 'RP', 'E2', 'E1')
AND D_VST_STATUS = 'DN'
ORDER BY D_VST_ID
GO
SELECT DRWLOC_ID as 'COUNT_ID', DRWLOC_INSTID as 'COUNT_INSTID',
count(*) as 'COUNT_VISITS'
INTO Donor_Visit2
FROM DNR_VST_DB_REC, Donor_Visit1
Where D_VST_ID = DRWLOC_ID
AND NOT EXISTS (Select R_DCC_ID
From REC_DCC_DB_REC
Where R_DCC_ID = DRWLOC_ID
AND R_DCC_INSTID = DRWLOC_INSTID
AND R_DCC_CALLCD = 'DC')
GROUP BY DRWLOC_ID, DRWLOC_INSTID
GO
SELECT DVT1.DRWLOC_ID as'COMP_ID', CMP.l_CMP_UNITNO as 'COMP_UNITID',
CMP.L_CMP_INSTID as 'COMP_INSTID', count(*) as 'COMP_COMPTOT'
INTO Donor_Visit3
FROM LAB_CMP_DB_REC CMP, Donor_Visit1 DVT1, DNR_VST_DB_REC VST, CMP_VST_Jct CVT
WHERE CMP.L_CMP_INSTID = DVT1.DRWLOC_INSTID
AND VST.D_VST_ID = DVT1.DRWLOC_ID
AND VST.D_VST_UNITNO = CVT.L_CMP_UNITNO
AND CMP.L_CMP_UNITNO = CVT.L_CMP_UNITNO
AND CMP.L_CMP_STATCD != 'MOD'
AND CMP.L_CMP_CMPCD NOT IN ('INC', 'EMTY')
AND VST.D_VST_DATE BETWEEN 20010101 AND 20040512
AND VST.D_VST_STATUS = 'DN'
GROUP BY DVT1.DRWLOC_ID, CMP.L_CMP_UNITNO, CMP.L_CMP_INSTID
GO
SELECT DISTINCT
NAM.N_NAM_ID AS 'ID1',
NAM.N_NAM_INSTID AS 'INSTID1',
NAM.N_NAM_FNAME AS 'FNAME1',
NAM.N_NAM_MINITIAL AS 'MINITIAL1',
NAM.N_NAM_LNAME AS 'LNAME1',
PER.N_PER_BIRTH AS 'BIRTH1',
ADR.N_ADR_ADDR1 AS 'ADDR1',
ADR.N_ADR_ADDR2 AS 'ADDR2',
ADR.N_ADR_CITY AS 'CITY1',
ADR.N_ADR_STATE AS 'STATE1',
SUBSTRING(ADR.N_ADR_ZIP, 1,5) AS 'ZIP1',
PER.N_PER_EMAIL AS 'EMAIL1',
PER.N_PER_GENDER AS 'GENDER1',
PHNA.N_PHN_AREACD AS 'AREAD1',
PHNA.N_PHN_PREFIX AS 'PREFIXD1',
PHNA.N_PHN_NUMBER AS 'NBRD1',
PHNA.N_PHN_EXTENTN AS 'EXTD1',
PHNB.N_PHN_AREACD AS 'AREAD2',
PHNB.N_PHN_PREFIX AS 'PREFIXD2',
PHNB.N_PHN_NUMBER AS 'NBRE2',
PHNB.N_PHN_EXTENTN AS 'EXTD2',
BTY.D_BTY_ABO AS 'ABO1',
BTY.D_BTY_RHESUS AS 'RHI',
VST.D_VST_DATE AS 'FIRST1',
DV2.COUNT_VISITS AS 'COUNT',
SUM(DTS.D_DTS_DONSUM) AS 'AWARD',
ELG.D_ELG_RWBDTE AS 'ELIG1'
--INTO Donor_Visit4
From Donor_Visit2 DV2
RIGHT OUTER JOIN DNR_DTS_DB_REC DTS
ON DV2.COUNT_INSTID = DTS.D_DTS_INSTID
RIGHT OUTER JOIN NAT_PER_DB_REC PER
ON DV2.COUNT_INSTID = PER.N_PER_INSTID
RIGHT OUTER JOIN DNR_BTY_DB_REC BTY
ON DV2.COUNT_INSTID = BTY.D_BTY_INSTID
RIGHT OUTER JOIN NAT_PHN_DB_REC PHNA
ON DV2.COUNT_INSTID = PHNA.N_PHN_INSTID
RIGHT OUTER JOIN NAT_PHN_DB_REC PHNB
ON DV2.COUNT_INSTID = PHNB.N_PHN_INSTID
RIGHT OUTER JOIN DNR_DTS_DB_REC DNT
ON DV2.COUNT_ID = DNT.D_DTS_ID
RIGHT OUTER JOIN NAT_PER_DB_REC PER1
ON DV2.COUNT_ID = PER1.N_PER_ID
RIGHT OUTER JOIN DNR_BTY_DB_REC BTY1
ON DV2.COUNT_ID = BTY1.D_BTY_ID
LEFT OUTER JOIN NAT_PHN_DB_REC PHNA1
ON DV2.COUNT_ID = PHNA1.N_PHN_ID
RIGHT OUTER JOIN NAT_PHN_DB_REC PHNB1
ON DV2.COUNT_ID = PHNB1.N_PHN_ID
LEFT OUTER JOIN NAT_PHN_DB_REC PHNA2
ON PHNA2.N_PHN_PHTYP = 'D'
LEFT OUTER JOIN NAT_PHN_DB_REC PHNB2
ON PHNB2.N_PHN_PHTYP = 'E',
--LEFT OUTER JOIN DNR_DTS_DB_REC DTS1
--DTS1.D_DTS_CNTTYP <> 'N',
DNR_ELG_DB_REC ELG, NAT_NAM_DB_REC NAM, NAT_ADR_DB_REC ADR, DNR_VST_DB_REC VST
WHERE DV2.COUNT_INSTID = VST.D_VST_INSTID
AND DV2.COUNT_INSTID = ELG.D_ELG_INSTID
AND DV2.COUNT_INSTID = N_NAM_INSTID
AND DV2.COUNT_INSTID = N_ADR_INSTID
AND DV2.COUNT_INSTID = VST.D_VST_INSTID
--AND DV2.COUNT_INSTID = ELG.D_ELG_ID
AND NAM.N_NAM_SEQNO = 0
AND VST.D_VST_DATE = (SELECT MIN(VSTB.D_VST_DATE)
FROM DNR_VST_DB_REC VSTB
WHERE VST.D_VST_INSTID = VSTB.D_VST_INSTID
AND VSTB.D_VST_STATUS = 'DN'
AND VST.D_VST_ID = VSTB.D_VST_ID)
AND NOT EXISTS (SELECT R_DRC_ID
FROM REC_DRC_DB_REC
WHERE R_DRC_ID = COUNT_ID
AND R_DRC_INSTID = COUNT_INSTID
AND R_DRC_RESPCD = '15')
GROUP BY
NAM.N_NAM_ID,
NAM.N_NAM_INSTID,
NAM.N_NAM_FNAME,
NAM.N_NAM_MINITIAL,
NAM.N_NAM_LNAME,
PER.N_PER_BIRTH,
ADR.N_ADR_ADDR1,
ADR.N_ADR_ADDR2,
ADR.N_ADR_CITY,
ADR.N_ADR_STATE,
ADR.N_ADR_ZIP,
PER.N_PER_EMAIL,
PER.N_PER_GENDER,
PHNA.N_PHN_AREACD,
PHNA.N_PHN_PREFIX,
PHNA.N_PHN_NUMBER,
PHNA.N_PHN_EXTENTN,
PHNB.N_PHN_AREACD,
PHNB.N_PHN_PREFIX,
PHNB.N_PHN_NUMBER,
PHNB.N_PHN_EXTENTN,
BTY.D_BTY_ABO,
BTY.D_BTY_RHESUS,
VST.D_VST_DATE,
DV2.COUNT_VISITS,
DTS.D_DTS_DONSUM,
ELG.D_ELG_RWBDTE
Error Message:
(845 row(s) affected)
(844 row(s) affected)
(396 row(s) affected)
Server: Msg 9002, Level 17, State 6, Line 2
The log file for database 'tempdb' is full. Back up the transaction log for the database to free up some log space.
Server: Msg 1105, Level 17, State 1, Line 2
Could not allocate space for object '(SYSTEM table id: -109901351)' in database 'TEMPDB' because the 'DEFAULT' filegroup is full.
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Jul 9, 2004
Microsoft SQL Server 2000:
I am not a SQL programmer, but I am trying to use data collected in our Job Costing system to feed data to a crystal report that summarizes the current department name and the last date each job was scanned into a department.
I used aliases of the Process table to extract the max date for each department.
This statement works fine, but sometimes it hangs and locks my process table. I am not sure what event causes the lock, but I think it has to do with the users aborting the report during the SQL extract or multiple users trying to report at the same time (8am when they first arrive at work).
I showed this to a consultant and he showed me that the MAX statement in the 3rd to last join was eating most of the execution time. Also he told me I am using too many joins and should look into Table Views. The statement completes in 15 to 45 seconds, depending on the workload.
What can I do to improve the performance of this code and to avoid the locks?
SELECT
OH.JobNumber,
OH.PlantID,
OH.CreateOpr,
OC.ComponentNumber,
PJN.ProductionCode as ProductionMax,
P2.ProcessCode as MaxCC,
PS.Description AS MaxCCDesc,
PJ1.ProductionCode,
P.ProcessCode as ProdCC,
P51.CreateDatim AS SchCCDate,
P53.CreateDatim AS TypCCDate,
P55.CreateDatim AS OPrCCDate,
P57.CreateDatim AS HPrCCDate,
P59.CreateDatim AS CRmCCDate,
P61.CreateDatim AS CCeCCDate,
P63.CreateDatim AS PRmCCDate,
P65.CreateDatim AS BinCCDate,
P67.CreateDatim AS JbOCCDate,
P69.CreateDatim AS OnDCCDate,
P71.CreateDatim AS ShpCCDate,
PS1.Description AS CCDesc,
P.CreateDatim AS CCDate,
OQT.Quantity,
OH.JobDescription,
OH.FormNumber,
OH.JobDescription,
OH.USERDEFINED1 AS JobType,
OH.CustAccount,
OH.CustName,
(select OrderHeader.DueDate from OrderHeader where OrderHeader.JobNumber = OH.JobNumber and OH.NoDueDate = 0) as DueDate,
OH.ProofDate,
OH.OrderDate,
OH.SalesRepCode,
OH.PONumber,
OH.PrevPONumber,
OH.NoDueDate,
OC.UserDefined1,
OC.Description as ComponentDescription
FROM OrderComponent OC
INNER JOIN OrderHeader OH ON OC.JobNumber = OH.JobNumber
INNER JOIN OrderQtyTable OQT ON OC.JobNumber = OQT.JobNumber
and OC.ComponentNumber = OQT.ComponentNumber
and OC.QtyOrdIndex = OQT.QuantityLineNo
LEFT JOIN ProductionJobNumber PJ1 ON PJ1.JobNumber = OH.JobNumber and PJ1.ComponentNumber = OC.ComponentNumber
LEFT JOIN Production P ON PJ1.ProductionCode = P.Code
LEFT JOIN Production P51 ON PJ1.ProductionCode = P51.Code AND P51.ProcessCode = 9151
LEFT JOIN Production P53 ON PJ1.ProductionCode = P53.Code AND P53.ProcessCode = 9153
LEFT JOIN Production P55 ON PJ1.ProductionCode = P55.Code AND P55.ProcessCode = 9155
LEFT JOIN Production P57 ON PJ1.ProductionCode = P57.Code AND P57.ProcessCode = 9157
LEFT JOIN Production P59 ON PJ1.ProductionCode = P59.Code AND P59.ProcessCode = 9159
LEFT JOIN Production P61 ON PJ1.ProductionCode = P61.Code AND P61.ProcessCode = 9161
LEFT JOIN Production P63 ON PJ1.ProductionCode = P63.Code AND P63.ProcessCode = 9163
LEFT JOIN Production P65 ON PJ1.ProductionCode = P65.Code AND P65.ProcessCode = 9165
LEFT JOIN Production P67 ON PJ1.ProductionCode = P67.Code AND P67.ProcessCode = 9167
LEFT JOIN Production P69 ON PJ1.ProductionCode = P69.Code AND P69.ProcessCode = 9169
LEFT JOIN Production P71 ON PJ1.ProductionCode = P71.Code AND P71.ProcessCode = 9171
LEFT JOIN Process PS1 ON P.ProcessCode = PS1.ProcessCode
LEFT JOIN ProductionJobNumber PJN ON PJN.ProductionCode =
(select MAX(ProductionJobNumber.ProductionCode)
From ProductionJobNumber
where OH.Jobnumber = ProductionJobNumber.JobNumber
AND OC.ComponentNumber = ProductionJobNumber.ComponentNumber)
LEFT JOIN Production P2 ON PJN.ProductionCode = P2.Code
LEFT JOIN Process PS ON P2.ProcessCode = PS.ProcessCode
WHERE OH.JobStatus = 'IN PROCESS'
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Apr 20, 2004
i have two tables each table having 2 column
table1 table2
eid ename eid ename
1 A 3 C
2 B 4 D
i shld use a select query to get the following output
eid1 eid2
1 3
2 4
there is no relation btw the 2 tables except that eid column of both tables r of same data type
the count of eid column in both table are also same
can a blind join be done
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May 24, 2004
SQL Novice
What i want to happen is Table_A will hold a recid and an update field. within the if statement it needs to JOIN with Table_B ON recid and check the value of one/two possible fields to determine if that recid goes to Table_F or Table_G
I need to get this INNER JOIN embedded in a nested if along with more INNER JOINs
INSERT BACKFILE_AP
SELECT WORK_INTRO.RECID, WORK_INTRO.UPDATED
FROM WORK_INTRO INNER JOIN SIF_DT1
ON WORK_INTRO.RECID = SIF_DT1.RECID
WHERE SIF_DT1.ROUTE_CODE = 'BACKFILE'
DELETE WORK_INTRO
FROM WORK_INTRO INNER JOIN SIF_DT1
ON WORK_INTRO.RECID = SIF_DT1.RECID
WHERE SIF_DT1.ROUTE_CODE = 'BACKFILE'
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