It Seems Cross Join Is Usefulless At All?

May 31, 2008



StaffTable
StaffID (int ,PK)
StaffFullName(vnchar(50))

DepartmentTable
DepartmentID (int,PK)
StaffID (int,FK)
DepartmentName(vnchar(50))

it seems when I use SELECT * FROM StaffTable,DepartmentTable

it returns a lot of wrong data.(I guess, the right data is just in 10%, 90% is wrong)

So , is this mean, in a real industry software project, no one would use cross join?

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Can Any One Tell Me The Difference Between Cross Join, Inner Join And Outer Join In Laymans Language

Apr 30, 2008

Hello

Can any one tell me the difference between Cross Join, inner join and outer join in laymans language

by just taking examples of two tables such as Customers and Customer Addresses


Thank You

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Cross Join

Dec 25, 2007



good morning
I wanna to put a sub query in the cross join like that



SELECT *

FROM table1

CROSS JOIN (select field

from table2

cross join table3)


but i got this error


Msg 102, Level 15, State 1, Line 7

Incorrect syntax near ')'.

can anyone help me!!!!

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Cross Join Without Table?

Feb 1, 2005

I have the following structure with remote select permissions; I cannot create temp tables or use stored procs:

tblEvent with event_pk, eventName
tblReg with reg_pk, event_fk, person_fk, organization_fk

I'm currently using a case statement to get counts for these categories:
case
when c.person_fk is Null and c.organization_fk is not null then 'Employer'
when c.person_fk is Not Null and c.organization_fk is null then 'Individual'
when c.person_fk is not Null and c.organization_fk is not null then 'Both'
else 'Unknown'
end

But I need some kind of count (0) for every category. I've used a cross-join, group by in the past - but what do you do if you don't have a table? For example, the end result when selecting event_pk=(112,113) would be:

event_pk, myCount, countCat
112 0 Employer
112 1 Individual
112 4 Both
112 0 Unknown
113 5 Employer
113 0 Individual
113 0 Both
113 2 Unknown

Thanks for any help,
jb

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Help With Cross Join - 3 Tables

Feb 26, 2008

I am wanting to show Total Quantity of Presentations2 for each EmpVol and TypeofPresentation, even if there are no Presentations done in TypeofPresentation or if an Employee did not do any Presentations.

I am close with the query below - but not getting back exactly what I want - Ideas.

SELECT ISNULL(Presentations2.Quantity, 0) AS Quantity, TypeofPresentation.Typeofpresforrpt, EmpVol_2.LastName, EmpVol_2.FSSTVOLUNTEER
FROM Presentations2 INNER JOIN
EmpVol ON Presentations2.ID = EmpVol.ID RIGHT OUTER JOIN
TypeofPresentation ON Presentations2.TypePresINT = TypeofPresentation.TypePresINT CROSS JOIN
EmpVol AS EmpVol_1 CROSS JOIN
EmpVol AS EmpVol_2
GROUP BY TypeofPresentation.Typeofpresforrpt, EmpVol_2.LastName, EmpVol_2.FSSTVOLUNTEER, ISNULL(Presentations2.Quantity, 0)
HAVING (EmpVol_2.FSSTVOLUNTEER = N'FSST')

Thanks,

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Sub-Query / Cross Join / Or Something Else?

Mar 21, 2007

I have the following 2 tables:(BATCHES)BatchID [int] KEYID [int]OrderID [int]Action1DateTime [datetime]Action2DateTime [datetime]Action3DateTime [datetime]Action4DateTime [datetime]Action5DateTime [datetime]Action6DateTime [datetime]Action7DateTime [datetime]Action8DateTime [datetime](ORDERS)OrderID [int] KEYProductionLineID [int]RecipeID [int]OrderAmount [int]Batches.Action1DateTime to Batches.Action8DateTime can have several entrieseach day.I need a query to count all Batches.Action1DateTime to allBatches.Action8DateTime for each day in a specified period.I also need to specifically use where clauses for Orders.OrderID and/orOrders.RecipeID.I need the data to draw a graph for each ActionXDateTime as a function ofdate.Any help appreciated./Henrik

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TOP 2 In A Cross Join (Matrix)

Oct 30, 2006

Hello

I have to retrieve a cross join between languages and language-skills for more person in a matrix (grid) report.

E.g. i like to ritrieve the TOP 2 people in each "cell" of the grid (order by name).
There are 3 people in cell "ITALIAN / very good".
So i have to retrieve only the top 2.

In table tEmployee i have the people names (john, anna, michael)
In table tLanguage i have all language (english, italian, german)
And in table tLanSkill i have the language rating (bad, good, very good)

bad
good
very good


Englisch
Michael
John
Anna


Italian




John

Michael

Anna


German




Anna






THX for your help.

ciao, michele

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Same Effect As Cross Join?

Jul 7, 2006

How can I achieve the same effect as a cross join (since the merge operator doesn't have a cross join)?

Situation is this... a flat file has some header and footer information that I need to keep and attach to each row. So for simplicity sake of an example lets just say header has only 1 thing we care about - a row that says DATE=01/01/06.

I take the file and run a split to split into "Date" "Data" and "other" (other has all the throwaway rows in header and footer I don't care about). Then I use a derived column object to get all the columns out of the "Data". Finally I want to add that Date metadata back to every row in the data...

I thought this would be an easy thing to do.. but I can't seem to figure out how to duplicate that Date info into every row.. Hopefully I am overlooking something simple.

Thanks in advance.

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Cross-Join Query

May 21, 2008





Hi folks, this is my first time here... i hope that you can help me with this query

I have two query and one table

Queries
Q1-Training - List of training
Q2-Group - Groups that must take the training
Table
T1 - Training_Group

Here a query example using SELECT * FROM

Q1
Code Name
-----------------------------------
AD0041 Advance SQL
BE0012 Beginner SQL
NE0001 Newbie SQL
...

Q2
Group_Name Group_Code
-----------------------------------
Administration ADMIN
Directors 456
John Smith 555666
...

T1
Code Level Group_Code
-----------------------------------
AD0041 1 ADMIN
AD0041 2 456
AD0041 3 555666
BE0012 2 456
NE0001 1 ADMIN

Here's my problem :

I need to make a report that look like that

(as training) (Group_Code) --> dynamic column
^^^^^^ ^^^^^^
Training ADMIN 456 555666
-------------------------------------
AD0041 1 1 1
BE0012 0 1 0
NE0001 1 0 0

I did it in ACCESS with TRANSFORM and PIVOT.

But how i do that in SQL Server 8.0 ?^

Thanks in advance for your solution or hints... i'll be back tomorrow morning

Best regards
David

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Urgent Help With Query (Cross Join)

Sep 28, 2006

I have the following tables:members--------------member_idmember_tpc_id ( = tpc.tpc_id)tpc------tpc_idcourse------------course_idtpc_assignment---------------------------tpc_assignment_idcourse_idenrollment-------------------member_idcourse_idenrollment_status Now I want to select all members where member_tpc_id>0 and get the enrollment_status of each member in each course where course_id IN (Select course_id From tpc_assignment)Now what i did was get all the members and then all the courses and did a cross join between them. There are about 1900 members and 80 courses and when I do a cross join I get 1900*80 rows (152000) and the status of each member for all the 80 courses. If not enrolled it returns Not Enrolled (i have a UDF which takes a member_id and a course_id and returns the status). The BIG problem is that its taking about 6-8 mins to run the query and as a result its timing out on the aspx page. Can someone please tell me how I can do what i am trying to do without using the cross join because I suspect its the culprit here. The query I came up with is  Select
*, dbo.returnStatus(temp1.user_id, temp2.course_id) As Status,
(Select tpc_title From tpc Where tpc_id = temp1.member_tpc_id) As Tpc_Title
From
(Select member_id As user_id, member_name, member_tpc_id
From members Where member_tpc_id> 0 And organization_id = '1'
)temp1
cross join
(Select course_id As course_id, course_title As course_title
From course Where course_id IN
(Select course_id From tpc_assignment Where tpc_requirement_id IN
(Select tpc_requirement_id From tpc_requirement) And course_id<>0 And organization_id = '1')
)temp2
Order By member_name, Tpc_TitlePlease help. Thank you. 

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Querying On A Nvarchar(MAX) With Cross Join?

Nov 6, 2006

Hello,
I have a query that returned much more results than it should.  I believe this is because it was a cross join instead of inner join (because I forgot to map a temporary relationship in the designer of SQL Server Express; I think this is what the problem may have been, but I can't remember), but could it be because the join criteria is because it is an nvarchar(MAX)?
I did the join on two nvarchar(MAX) fields.  The table has 31102 rows in both tables, and it would pull back the first entry in the first table, and all 31102 rows in the second table, and so it would pull back 31102 rows for each entry in the first table.
Is that only because of the cross join, or maybe because of nvarchar(max)?

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Cross Join/? Query In A View Help

Feb 4, 2004

Hey All...
Got a View question.
Have 2 tables:
#1 Currencies
|CCY_Name|CCY_Code|

#2 Rates
|CCY1|CCY2|CCY3|...etc|Active|
-> where the Columns CCY# = the Records in #1

How do I build a View to Select the ONE record in #2 where Active=Y, having the CCY_Name from #1 based on #2.CCY1 (Column NAME) = #1.CCY_Code (Record).

Thanks

robbied111

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Cross Join Iteration Problem...

Feb 5, 2004

I am having a mental fart...

I have two tables:

DECLARE @store_options TABLE(store_option_id INT IDENTITY(1,1), store_id INT)

DECLARE @vendor_options TABLE(vendor_option_id INT IDENTITY(1,1), store_option_id INT, item_id INT, vendor_id INT, price NUMERIC(18,4))

I populate the first table with a litst of stores that offer all desired items.

I populate the second table with a list of vendors, the item is, and cost avaiable at each of the stores in the first table.

What I would like is to output all possible the store and vendor combos ordered by combined price.

So, for instance, I have 3 products, A B and C. Store X has A and B by vendor G, and A B and C by vendor H. I want the output to have all iterations of (Store, Product, Vendor, Price) grouped in order of total price. So...

X A G
X B G
X C H

X A G
X B H
X C H

X A H
X B G
X C H

X A H
X B H
X C H

ordered by each group's combined price.

For some reason, I can't get this straight in my head. Must need more coffee.

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Cross Join Tables And Nulls

Jan 31, 2015

I have a small doubt regarding cross join and NULL values,

Table A has four rows (1,2,3,NULL)..Table B has 4 rows(1,2,3,NULL)..if i cross join table A and B..

How many rows will be there in result

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Pickup Tax Rate Without Using CROSS JOIN

Aug 29, 2005

I need to pickup a tax rate, that is stored on a 1 record file. I would like to avoid using the CROSS JOIN. Is there a way to SELECT the record and set a Variable = to the tax rate so I can pickup the rate in another SELECT statement on each record?

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Cross Join Inside Grouo

Aug 20, 2007

table a
id group value
1 g1 2
2 g1 3
3 g2 4
4 g2 5
5 g2 10

table b
gourp name
g1 n1
g1 n2
g2 n4
g2 n5

I want ret table look like
1 g1 2 n1
1 g1 2 n2
2 g1 3 n1
2 g1 3 n2
3 g2 4 n4
3 g2 4 n5
4 g2 5 n4
4 g2 5 n5
5 g2 6 n4
5 g2 6 n4

How can I fulfill this task, thanks.
Jeff

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What Does Just &#39;JOIN&#39; Statement Do W/o Inner Or Outer Or Cross In Front

Jul 26, 2002

There is some code that I am looking at. It is like this

SELECT a.Name, p.Name
FROM applicant a
JOIN Pending p
ON a.ID = p.ID

Thanks list.

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Help With (Pivot/Cross-Join???) Query To Select A Result Set

Jan 20, 2005

I have information on clothes in a table that I want to select out to a result set in a different structure - I suspect that this will include some kind of pivot (or cross-join?) but as I've never done this before I'd appreciate any kind of help possible.

Current structure is:

Colour Size Quantity
-----------------------
Red 10 100
Red 12 200
Red 14 300
Blue 10 400
Blue 12 500
Blue 14 600
Green 10 700
Green 12 800
Green 14 900
Green 16 1000

I want to produce this result set:

Colour Size10 Size12 Size14 Size16
-------------------------------------
Red 100 200 300 0
Blue 400 500 600 0
Green 700 800 900 1000

There could be any number of sizes or colours.

Is this possible? Can anyone give me any pointers?

Thanks in advance

greg

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Cross Database Join In A Data Source View

Jun 21, 2007

Hi,

Is it possible to do a cross database join in a report services data source view? It doesn't look like it.

If not I was thinking of linking the table into the other database.

TIA,
Darren

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SQL Server 2014 :: Writing A Cross Join Query With One Table?

Jul 19, 2015

writing a cross join query with one table:

Cities(City_name, X_coordinate, Y_coordinate)

the result should be all combinations without reverse column returns

SELECT * FROM [dbo].[Cities] as P1
Cross JOIN [dbo].[cities] as p2
where (p1.City_name != p2.City_name) and ???

for example if there are three Cities as A,B,C the result should be: A->B, A->C, B->C (without the returns B->A, C->A, C->B)

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SQL Server 2014 :: Column Store Query Reverting To Row Mode With CROSS JOIN

May 20, 2015

I have two inline selects against a table with a nonclustered columnstore on SQL 2014 (12.0.2000). Both execute in batch mode and when I inner-join the two, they continue to execute in batch mode. When I cross join them, one executes in row mode. Below is some SQL to simulate the issue.

-- The purpose of this script is to demonstrate that
-- two queries against a columnstore index that each execute in batch mode
-- will continue to execute in batch mode when inner joined.
-- However, one of the queries will execute in row mode when cross-joined.

-- Create function to return 0 to n rows
IF OBJECT_ID('dbo.IntCount') IS NOT NULL
DROP FUNCTION dbo.IntCount;

[Code] .....

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HOW To Select A Matrix (cross Join) With Empty Records To Retrieve The Same Amount Of Records For Each Cell

Nov 2, 2006

Hello

Im searching for a solution to set all matrix row or cell the same height.
it schoud looks like this example:

This is a simple matrix


test a

text b








text c








text d

text e

text f








text g










This is a matrix with all the same row-height.



test a

text b

.








text c

.
.









text d

text e

text f








text g

.

.









Thx you a lot

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May 22, 2015

I have two xml source and i need only left restricted data.

how can i perform left restricted join?

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Transact SQL :: Difference Between Inner Join And Left Outer Join In Multi-table Joins?

Oct 8, 2015

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.

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T-sql Cross Tab

Jul 20, 2004

I should've posted this thread here....

http://www.dbforums.com/t1005070.html

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Cross Tab?

May 18, 2004

I need to format the following tables:


tbEmployees
EmployeeID | fName | lName
-------------------------------------------
jdoe | Joe | Doe
bsmith | Blake | Smith

tbDepartments
DepartmentID | Department
-------------------------------
ENG | Engineering
DET | Detailing

tbDepartmentEmployees
fkEmployee ID | fkEmployeeID
------------------------------
ENG | jdoe
DET | bsmith

tbProjects
ProjectID |
---------------
1001

tbProjectTeam
fkProjectID | fkEmployeeID | fkDepartmentID
-------------------------------------------
1001 | jdoe | ENG
1001 | bsmith | DET


To the following view :


vProjects
ProjectID | Engineer | Detailer
-------------------------------------
1001 | Joe Doe | Blake Smith


Any Ideas?
Mike B

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Cross Tab

Jun 17, 2008

Is it possible change to cross tab using code?

Before code:

NAMETYPEVALUE
AAAHEIGHT66
AAAWEIGHT198

After code

NAMEHEIGHTWEIGHT
AAA66198

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Cross Tab

Oct 20, 2006

Hi,
I'm just starting to learn SQL, just on the querying side and have what I think is quite a tricky function. It may be simple for you guys.

I want to make a report based on three tables. Enrolment, Course and Student. Its pretty easy until I need to crosstab it.

It's more complex than this (more fields but this gives the gist) Basically I want AcademicYearId, StudentID, coursecode, completionstatusid which would give the following.

AcademicYearId StudentId coursecode completionstatusid
05/06 912345 FWFT1 CONTINUING
05/06 914587 FWFT1 CONTINUING
05/06 987654 FWFT1 WITHDRAWN
05/06 954376 FWFT1 CONTINUING
05/06 934512 FWFT1 TRANSFERRED
05/06 923000 FWFT1 TRANSFERRED
04/05 945109 FWFT1 COMPLETED

I have managed to group it by academicyearid, coursecode and completionstatusid and done the counts ok but I want to twist the completionstatusid so each type of status has its own column like this

Year CourseCode Students Continuing Withdrawn Transferred Completed
05/06 FWFT1 6 3 1 2 0
04/05 FWFT1 1 0 0 0 1

Can anyone help me with the the extra columns please.

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Cross Tab??

Jul 20, 2005

thought my question was misinterpreted.actual table can be smaller or larger. but,within a procedure need to turn a created #temptablesimilar to(examid is in asc order):(id, p/f, examid, examname)1 f xxxx xxxxx1 f xxxx xxxxx1 f xxxx xxxxx2 p3 p4 f xxxx xxxxx4 f xxxx xxxxx4 f xxxx xxxxx4 f xxxx xxxxx4 f xxxx xxxxx4 f xxxx xxxxx4 f xxxx xxxxx(note, id = 4 has 7 failed exams).to a table with up to five columns of failedexamnames:1 f xxxxx xxxxx xxxxx2 p2 p4 f xxxxx xxxxx xxxxx xxxxx xxxxxcan get rid of exameid if helps.--Sent by ricksql from yahoo subpart from comThis is a spam protected message. Please answer with reference header.Posted via http://www.usenet-replayer.com/cgi/content/new

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Warning - The Join Order Has Been Enforced Because A Local Join Hint Is Used

Dec 23, 2014

I have two select statements, in between select statement taking UNION ALL . I need to avoid the error

Warning: The join order has been enforced because a local join hint is used.

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'Left Outer Merge Join' Failing To Join Valid Row

Aug 10, 2007

Scenario:

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?

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Cross Tab Query

Sep 7, 2007

 Hi!
I m using sql 2005.I have a table as showing below.










year
Region
loan_amt
pur_id
purpose


1981
Andhra pradesh
$20,000.00
     1
Animal Husbandary

1981
Arunachal Pradesh
$110,000.00
     1
Animal Husbandary

1981
Assam
$240,000.00
     1
Animal Husbandary

1981
Bihar
$75,000.00
     1
Animal Husbandary

1981
Chhattisgarh
$55,500.00
     1
Animal Husbandary

1981
Gujarat
$77,500.00
     1
Animal Husbandary

1982
Goa
$44,888.00
     1
Animal Husbandary

1982
Himachal pradesh
$4,000.00
     1
Animal Husbandary

1982
Himachal pradesh
$20,000.00
     1
Animal Husbandary

1982
Jammu and kashmir
$30,000.00
     1
Animal Husbandary

1882
Jharkhand
$35,000.00
     1
Animal Husbandary

1982
Karnataka
$40,000.00
     1
Animal Husbandary

1982
Kerala
   $20,000.00   
     1
Animal Husbandary

1982
Madhya pradesh
$5,000.00
     1
Animal Husbandary
 
 
I want to produce report as  by using crosstab query as showing bellow
 
Year      Asam     Hyadrabad   goa  arunachal pardesh etc............
1981      1000.00    2000.00       8000.2  00000        000000 ......
1981
'
'
Is it possible by crosstab query ?or please suggest me another way as early as possible.
 
Thanx in advance.
Abhishek
 
 
 
 
 

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Hi Need Help In Cross Tab Query

Apr 14, 2008

I wanna develope a report using cross  tab query. I have table wit the name spend in which i have spenddate and there is also a amount field which will show the sum of amount field against months, i wanna develop repport in this format
merchant name jan 2007 feb 2007 dec 2007 jan 2008 feb2008
test                   45          50            25          10            11
 
Please can any one help me how to do this this is very urgent ?

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