Outer Join Oracle Query Translate In Sql Server
Apr 16, 2004
Hi,
I have this oracle query with outer join situation. how can i convert it into sql server query.
SELECT distinct ae.dB_CONTRACT,CP.PC_CODE,BID_ITEM.ITEM_NO,
'N',BID_ITEM.PRICE_WORDS,OFF_ITEM.DESCPT,
OFF_ITEM.UNITS,OFF_ITEM.TYPE_ITEM,
PRES_ITEM.RET_PERC
FROM BID_TOTAL,BID_ITEM,OFF_ITEM,PRES_ITEM, AE_CONTRACT AE, CONTRACT_PC CP
WHERE RANK_NUMB = 1
AND BID_TOTAL.DB_CONTRACT = 37044
AND BID_TOTAL.DB_CONTRACT = BID_ITEM.DB_CONTRACT
AND BID_TOTAL.BID_VENDOR = BID_ITEM.BID_VENDOR
AND BID_ITEM.DB_CONTRACT = OFF_ITEM.DB_CONTRACT
AND BID_ITEM.ITEM_NO = OFF_ITEM.ITEM_NO
AND OFF_ITEM.ITEM_NO = PRES_ITEM.ITEM_NO (+)
AND AE.DB_CONTRACT=BID_TOTAL.DB_cONTRACT
AND CP.DB_CONTRACT = AE.DB_CONTRACT
AND CP.pc_code = 1
Any Help will be appreciated.
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May 5, 2006
Hi
I want to know the equivalent of the Oracle translate function in SQL Server.
eg : select translate('entertain', 'et', 'ab') from dual.
I tried the SQL Server Replace function , but it replaces only one character or a sequence of character and not each occurrence of each of the specified characters given in the second argument i.e 'et'.
Please let me know if there is some other equivalent function in SQL Server
thanks.
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May 5, 2006
Hi
I want to know the equivalent of the Oracle translate function in SQL Server.
eg : select translate('entertain', 'et', 'ab') from dual.
I tried the SQL Server Replace function , but it replaces only
one character or a sequence of character and not each occurrence of
each of the specified characters given in the second argument i.e 'et'.
Please let me know if there is some other equivalent function in SQL Server
thanks.
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Apr 26, 2002
Take the following scenario:
We have two tables that have somewhat of a parent-child relationship. We are trying to use a SQL-92 outer join that returns the same results as a TSQL *= outer join. The difficulty we are having is that some of the parent records do not have any corresponding child records, but we still want to see those parent records with 0 (zero) for the count. How can we accomplish this with a SQL-92 compliant join (if it is even possible)? In the query results below, we would like the first set of results.
Thanks in advance for any help.
-David Edelman
Test script below, followed by results
===========================================
create table parent (p_id int NOT NULL)
go
create table child (p_id int NOT NULL, c_type varchar(6) NULL)
go
insert parent values (1)
insert parent values (2)
insert parent values (3)
insert parent values (4)
insert parent values (5)
insert parent values (6)
insert parent values (7)
insert parent values (8)
insert parent values (9)
insert parent values (10)
go
insert child values (1, 'AAA')
insert child values (1, 'BBB')
insert child values (1, 'CCC')
insert child values (2, 'AAA')
insert child values (4, 'AAA')
insert child values (4, 'DEF')
insert child values (4, 'AAA')
insert child values (4, 'BBB')
insert child values (5, 'AAA')
insert child values (5, 'AAA')
insert child values (6, 'AAA')
insert child values (7, 'AAA')
insert child values (7, 'BBB')
insert child values (7, 'CCC')
insert child values (7, 'DDD')
insert child values (10, 'AAA')
insert child values (10, 'CCC')
go
select p.p_id, count(c.p_id) as num_rows
from parent p, child c
where p.p_id *= c.p_id
and c.c_type in ('AAA', 'BBB')
group by p.p_id
select p.p_id, count(c.p_id) as num_rows
from parent p left outer join child c on p.p_id = c.p_id
where c.c_type in ('AAA', 'BBB')
group by p.p_id
=========================================
Results:
(T-SQL *= outer join)
p_id num_rows
----------- -----------
1 2
2 1
3 0
4 3
5 2
6 1
7 2
8 0
9 0
10 1
(SQL-92 outer join)
Warning: Null value eliminated from aggregate.
p_id num_rows
----------- -----------
1 2
2 1
4 3
5 2
6 1
7 2
10 1
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Nov 30, 2004
Hi,
Kindly give the SQL Server equivalent for the below Oracle query :
select *from t1, t2, t3 where
t1.t1col1 (+) = t2.t2col1 and
t2.t2col1 (+) = t3.t3col1
Thanks,
Sam
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Jul 5, 2004
I have a MSDE query that includes a "left outer join..." clause. It runs fine in MSDE Query (a 3rd party GUI tool) and produces 12 rows. column 3 has some NULL values (because of the outer join).
But when I use the same query in an ASP.NET page, and display the result in a datagrid, it only displays 7 rows - the rows with the NULL value in column 3 do not display.
Is there a parameter somewhere in datagrid or dataset that I should be setting?
thank you someone!
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Jul 20, 2005
Hi!I have a problem with a query:Two tables:CREATE TABLE Emp (empno INT, depno INT)CREATE TABLE Work (empno INT, depno INT, date DATETIME)I want a list of all employees that belongs to a department (from Emptable), together with ("union") all employeees WORKING on that department aspescial day (An employee can have been borrowed from another departmentwhich he does not belong)Sample dataINSERT INTO Emp (empno, depno) VALUES (1,10)INSERT INTO Emp (empno, depno) VALUES (2,10)INSERT INTO Emp (empno, depno) VALUES (3,20)INSERT INTO Work (empno, depno, date) VALUES (1,10,'2003-10-17')INSERT INTO Work (empno, depno, date) VALUES (3,10,'2003-10-17')INSERT INTO Work (empno, depno, date) VALUES (3,10,'2003-10-18')Note that Employee 3 works on a department to which he does not belong (heis borrowed to another department)The following querySELECT empno, depno, date FROM work WHERE depno = 10 AND date = '2003-10-17'gives me this result set:empno depno date1 10 2003-10-17 00:00:00.0003 10 2003-10-17 00:00:00.000But I want employee 2 to appear in the result set as well, because hebelongs to department 10 (eaven thoug he is not working this particular day)The result set should look like thisempno depno date1 10 2003-10-01 00:00:00.0002 10 NULL3 10 2003-10-01 00:00:00.000I have tried different approaches, but none of them is good.Could someone please help me?Thanks in advanceRegards,Gunnar VøyenliEDB-konsulent asNORWAY
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Aug 10, 2006
Hi.
I want to know the difference between taking an outer join on tables and taking an outer join on the conditions that are defined between the tables.
Thanks in Advance.
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Jul 20, 2005
Hi,I need your help to resolve this problem. I have written a right outerjoin query between 2 indipendent tables as follows.select b.Account_desc, b.Account, a.CSPL_CSPL from Actual_data_final aright outer join Actual_account_Tbl b on a.account_desc =b.account_desc where (a.source_type = 'TY02' or a.source_type isnull) and (a.month = '2ND HALF' or a.month is null) and (a.year = 2004or a.year is null) and (a.product = 'NP' or a.product is null) orderby b.SnoBut the problem is I have few records in table Actual_account_Tbl butdo not match the condition "a.account_desc = b.account_desc".As per right outer join, I suppose to get those records as a result ofthe above query with null values of a.CSPL_CSPL. But it is notdisplaying.Please help me to resolve this problem.Regards,Omav
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Aug 23, 2007
Using SQL Server Reporting services 2005
I am reporting on a system with 32 devices, each of these devices can have certain events that happen to it that are logged and timestamped.
I need a table to show the count of each events that have happened to it within a certain time period.
This code snippet below works fine BUT if there are no events that happen to a certain device in the time period, then that device is 'missing' from the table.
What I need is basically a row for every device, regardless of if it has had any events happen to it (I will just show '0' for the event count)
Any thoughts? I'm a complete newbie at this by the way.
Thanks
Code Snippet
SELECT DeviceStatusWords.DeviceName, COUNT(DeviceEventDurationLog.StatusBit) AS BitCount, DeviceEventDurationLog.StatusBit AS Bit
FROM DeviceEventDurationLog RIGHT OUTER JOIN
DeviceStatusWords ON DeviceEventDurationLog.DeviceID = DeviceStatusWords.DeviceID
WHERE (DeviceEventDurationLog.TimeIn > @StartDate) AND (DeviceEventDurationLog.TimeIn < @EndDate)
GROUP BY DeviceStatusWords.DeviceName, DeviceEventDurationLog.StatusBit
ORDER BY DeviceStatusWords.DeviceName
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Sep 12, 2006
Hello all,
I am stuck in a bit of a mess, and i really don't know how to get out of it.
I am a dot.net developer, working with MS SQL server 2000.
I am trying to write a query which essentially gives the amount of stock available for a particular stock_code.
select Stock_code, description from stock
Now what i want to do is, for each one of the stock_code that apears in the table above i want to look into another table called pop_item, and get the closest delivery_date for that particular stock_code. So i have top 1 and order it by delivery_date desc.
Individually for a particular stock_code, i can do this no problem. And here is my code for stock_code='E0016/6'
select top 1
stock_code, delivery_date, order_number,qty_order-qty_delivered as onorder
from pop_item
where
stock_code='E0016/6' and
qty_order>qty_delivered
order by delivery_date desc
But I can't seem to be able to do this for all the stock_code, and not a specific one, cause even though i try and left outer join it, i can't access the outer stock_code from the first query into the next...
i.e
select stock.Stock_code, description, tempp.stock_code, tempp.delivery_date, tempp.onorder from stock
left outer join
(select top 1
stock_code, delivery_date, order_number,qty_order-qty_delivered as onorder
from pop_item
where
--Can't say this(stock_code= stock.stock_code and )
qty_order>qty_delivered
order by delivery_date desc) as tempp
on tempp.stock_code=stock.stock_code
Now my question is, is there anyway to access stock.stock_code within the second query? Casue the whole query on top returns only one value for delivery_date, only of the highest delivery date in the whole of pop_item. which make sense... but i don;t know how to get around this...
OOOOOOOOOOOOOOOOOOhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!
Hope someone can help me.
Regards,
Munira
ps- should i be using a cursor, can i call cursors from asp.net. every where i read about cursors they adivice us not to use them.
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Aug 2, 2006
Hi,
How to translate oracle Decode without changed code I mean:
I have one application and instead to change all decode to case when I would like just replace decode for dbo.decode, so I
Wrote this function
select dbo.fnDecode( 1 , 2 , 3 )
first parameter always int, and the others parameters could be char, int or float.
I would like to test first value and return second or third value
-> sql_variant for all parameters, ok
but I can use + or -
I can't do this
select dbo.fnDecode( 1 , 2 , 3 ) + dbo.fnDecode( 1 , 2 , 3 )
If I put cast ok, but I is there another way, overload this call?
With clr doesn't work, because Sql Server doesn't accept function overload calls from C#
Any ideia????????????????????
cheers,
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Dec 16, 2004
What is the best way to use a left join in a SQL statement with multiple tables (more than 2)? I have a query that uses 7 tables, where most of the joins are inner joins, except for one, which needs to be a left join. The current SQL statement looks something like this:
SELECT [table1].[field1], [table2].[field1], [table3].[field1], [table4].[field1], [table5].[field1], [table6].[field1], [table7].[field1]
FROM [table1],[table2],[table3],[table4],[table5],[table6],[table7]
WHERE
[table4].[field2]=[table1.field2]{this is an inner join}
[table4].[field2]=[table2.field2]{this is an inner join}
[table4].[field2]=[table3.field2]{this is an inner join}
[table4].[field2]=[table5.field2]{this is an inner join}
[table5].[field3]=[table6.field2]{this is an inner join}
[table5].[field4]=[table7.field2]{this is needs to be a left join}
As it stands now, the last line in the WHERE clause is an INNER JOIN and limits the number of rows in my result. I need to select rows from [table7].[field2] whether or not a matching record exists in [table5].[field4]. The other INNER JOINS in the SQL statement must have matching records. Please advise.
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May 3, 2007
Hi - I'm struggling with a query, which is as follows.
(I have changed the context slightly for simplicity)
I have 4 tables: users, scores, trials, tests
Each pair of users takes a series of upto 4 tests in 1 trial, getting a score for each test.
There are a different numbers of trials for each pair of users.
In detail the tables are:
Users - userid(primary,int), name(varchar)
Scores - scoreid(primary,int), userid(int), trialid(int), userid(int), testid(int), score(int)
Trials - trialid(primary,int), attempt(int), location(varchar)
Tests - testid(primary,int), testname(varchar)
Important: Users do not take all tests.
EG TrialId 1 contains userA & userB with userA scoring 10 on test1, 20 on test2 and userB scoring 30 on test2, 40 on test3, 50 on test4 and is userA & userB's 1st attempt.
TrialId 2 may be the same, but their 2nd attempt.
TrialId 3 may be the 1st attempt for 2 different users etc.
Suppose the Tests table has 4 tests (1,test1),(2,test2),(3,test3),(4,test4)
There are always 2 users for each trial id.
I want a query which will return all scores for all users for all trials, BUT must include NULLs if a user did not take a test on that trial.
I thought it may involve a cross join between the Tests table and the Trials table.
Any help greatly appreciated.
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Dec 12, 2007
How to use two left outer join in a single query?
I was trying to run the follwoing query.It is giving me error
"select woancestor.wonum,wplabor.laborcode, wplabor.quantity,wplabor.laborhrs
from wplabor,workorder left outer join woancestor on workorder.wonum=woancestor.wonum
and wplabor left outer join labtrans on wplabor.laborcode=labtrans.laborcode
where woancestor.ancestor='572099' and workorder.istask=1
and workorder.wonum=wplabor.wonum"
Error is "Server: Msg 156, Level 15, State 1, Line 3
Incorrect syntax near the keyword 'left'."
But the following query works fine
"select woancestor.wonum,wplabor.laborcode, wplabor.quantity,wplabor.laborhrs
from wplabor,workorder left outer join woancestor on workorder.wonum=woancestor.wonum
where woancestor.ancestor='572099' and workorder.istask=1
and workorder.wonum=wplabor.wonum"
please help me
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Oct 10, 2014
I need to convert a OUTER APPLY hint in my query to LEFT JOIN.How it can be done?The code which is presently is this: OUTER APPLY Additional Fields. nodes('/AdditionalFields/AdditionalField') AS AF (C)
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May 10, 2010
what is difference between outer apply and outer join ,both return rows from left input as well as right input . isnt it?
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Jun 2, 2004
I have two tables:
1. tblProducts
columns: ProductID, ProductName
2. tblProductCodes
columns: ProductID, CustomerID, ProductCode
The 2nd table is for storing product codes for customers, in other words, one product can have different ProductCode for different customers. But some customers do not have ProductCode for a ProductID.
I want to create a query to return all the Products and its ProductCode (null is valid) for a specific customer.
I tried:
SELECT dbo.tblProductCodes.ProductCode, dbo.tblProductCodes.CustomerID,
dbo.tblProducts.ProductName,
dbo.tblProducts.ProductID
FROM dbo.tblProducts LEFT OUTER JOIN
dbo.tblProductCodes ON dbo.tblProducts.ProductID = dbo.tblProductCodes.ProductID
WHERE dbo.tblProductCodes.CustomerID = 2
But the query left out all products that does not have ProductCode value in tblProductCodes table for CustomerID = 2. I want all the ProductName returned from query and render null or empty string for ProductCode value if the code does not exist in tblProductCodes table for the customer.
Any help is highly appreciated.
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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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Nov 4, 2003
Hello
I've a table with these values:
Cod_Lingua - Des_Lingua
------------------------------
ITA Italian
GER German
ENG English
FRA French
and another table with product/description
ProductID - Cod_Lingua - Description
-------------------------------------------
1 ITA Mia Descrizione
1 ENG My Description
I've this SELECT:
SELECT Tab_Lingue.Cod_Lingua, Descrizioni_Lingua.Description
FROM Descrizioni_Lingua RIGHT OUTER JOIN Tab_Lingue ON Tab_Lingue.Cod_Lingua=Descrizioni_Lingua.Cod_Lingua
WHERE Descrizioni_Lingua.ProductID=1
I get these results:
ITA - Mia Descrizione
ENG - My Description
I don't want this. I'd like to have this:
ITA - Mia Descrizione
ENG - My Description
GER - (null)
FRA - (null)
How can I get the second result set?
Thanks for your support.
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Sep 12, 2014
I need to find;
Card number and date of borrowers earliest loan for all borrowers who had a loan before the 03/Jan/2004 OR who borrowed a book published before 1920
So far my query looks like this but it is bringing back date out after 03/Jan
select cardno, min(l.dateout)
from loan l right outer join book b
on l.isbn = b.isbn
where b.yearpublished < '1920'
or l.dateout < '03/Jan/2004'
group by cardno
order by cardno;
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Nov 1, 2004
I am getting different results with LEFT outer join operator and *= operator. With *= I am getting the expected results. Can anyone look at SQL and tell what I am doing wrong?
SQL with Left Outer join operator:
select CurrentWeekFinMetrics.[Hub+],
WeeklyMetricsFormat.line#,
WeeklyMetricsFormat.MetricsType,
WeeklyMetricsFormat.Metrics,
WeeklyMetricsFormat.Measure, WeeklyMetricsFormat.jobs, case when dataformatchar is not null then
case when IsPrefix = 'Y' then dataformatchar + convert (varchar, CurrentWeekFinMetrics.displayCol )
else convert (varchar, CurrentWeekFinMetrics.displayCol ) + dataformatchar end
else
convert (varchar, CurrentWeekFinMetrics.displayCol )
end
from WeeklyMetricsFormat LEFT JOIN CurrentWeekFinMetrics on (WeeklyMetricsFormat.Line# = CurrentWeekFinMetrics.Line#)
where CurrentWeekFinMetrics.WeekEndingDate = '10/09/04' and CurrentWeekFinMetrics.[Hub+] = 'Amstelveen'
order by CurrentWeekFinMetrics.[Hub+], WeeklyMetricsFormat.Line#
SQL with *= operator
select CurrentWeekFinMetrics.[Hub+],
WeeklyMetricsFormat.line#,
WeeklyMetricsFormat.MetricsType,
WeeklyMetricsFormat.Metrics,
WeeklyMetricsFormat.Measure, WeeklyMetricsFormat.jobs, case when dataformatchar is not null then
case when IsPrefix = 'Y' then dataformatchar + convert (varchar, CurrentWeekFinMetrics.displayCol )
else convert (varchar, CurrentWeekFinMetrics.displayCol ) + dataformatchar end
else
convert (varchar, CurrentWeekFinMetrics.displayCol )
end
from WeeklyMetricsFormat , CurrentWeekFinMetrics
where CurrentWeekFinMetrics.WeekEndingDate = '10/09/04' and CurrentWeekFinMetrics.[Hub+] = 'Amstelveen'
AND (WeeklyMetricsFormat.Line# *= CurrentWeekFinMetrics.Line#)
For Left outer join operator, I am getting 54 rows, *= I am getting 69 rows.
Thanks and Regards
mb
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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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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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Apr 15, 2015
I'm attempting to improve a vendor created query.
Here is the original -
SELECT m.lID
FROM Message m
inner join Message_Cc mCC on m.lID=mCC.lMessage and mCC.lOfficeRecipient = 200321
INNER JOIN UserRole d on mCC.szRecipient=d.szRoleName
inner Join Map_UserAtOfficeToRole a2 on a2.lUserRole = d.lid AND d.nRecordStatus = 1
[Code] ....
If I run this without the LEFT OUTER JOIN and the is null statement I get 648 rows. But If I include it I get 0 rows. I can't understand why I get 0 rows with the outer join.
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Jun 5, 2006
I have a merge join (full outer join) task in a data flow. The left input comes from a flat file source and then a script transformation which does some custom grouping. The right input comes from an oledb source. The script transformation output is asynchronous (SynchronousInputID=0). The left input has many more rows (200,000+) than the right input (2,500). I run it from VS 2005 by right-click/execute on the data flow task. The merge join remains yellow and the task never finishes. I do see a row count above the flat file destination that reaches a certain number and seems to get stuck there. When I test with a smaller file on the left it works OK. Any suggestions?
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Mar 1, 2008
hello, i am running mysql server 5 and i have sql syntax like this:
select
sales.customerid as cid,
name,
count(saleid)
from
sales
inner join
customers
on
customers.customerid=sales.customerid
group by
sales.customerid
order by
sales.customerid;
it works fine and speedy. but when i change inner join to right join, in order to get all customers even there is no sale, my server locks up. note: there is about 10000 customers and 15000 sales.
what can be the problem?
thanks,
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Oct 10, 2007
Given a table of building components e.g. floors, walls, etc, etc:
create table component_multiplier_table
(
system_code char(4),
system_component_code char(3),
function_code char(4),
component_multiplier dec(7,6)
)
Where function_code is the function of the area e.g. Auditorium, Classrom, etc, etc. And not all components are available for all functions e.g. Carpeting is available for Classrooms but not Power Plants or Warehouses.
I need to self join the above table to itself on system_code and system_component_code and find out which rows are missing from each side.
A query that I've been banging away at with no success is:
SELECT c1.*, c2.*
FROM [dbo].[component_multiplier_table] c1 FULL OUTER JOIN [dbo].[component_multiplier_table] c2
ON (c1.system_component_code = c2.system_component_code) AND (c1.[system_code] = c2.[system_code])
WHERE c1.function_code = '2120' AND c2.[function_code] = '2750' AND (c1.[system_code] IS NULL OR c2.system_code IS NULL);
I added the is null conditions, no joy. I've tried every flavor of outer join w/o success.
Could any T-SQL gurus out there help me figure out how to do this in a set before I start coding
DECLARE crsr CURSOR
Thanks.
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Apr 16, 2008
Anyone know why using
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".
Any enlightenment is very appreciated.
Thanks
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Jun 1, 2004
Oi! What follows is a hypothetical situation, but it is a totally analogous to a real problem Im having, but provides an easier model to understand.
Imagine that you have database-driven battleship game and its time to render the board. Also imagine that you have to render more than one board and that the ships are all the size of one point on the grid.
One sql result you need is a list of all the points on the grid, regardless of whether or not there is a ship on it. This will make rendering much easier for you, because you can simply look at the record index to determine if a ship is present. The data that is stored about the position of the ships consists of one record containing the grid index and ship name.
One possible way to retrieve this data is to build a table that you will not change which contains a record for each point on the grid. Is it possible to union or join on this table to retrieve a list of results that contain both unoccupied locations and occupied ones?
Here is what I've come up with, but it contains results that have a null location when there are no ship records:
SELECT
Grids.GridID,
Ships.GridLocation,
Ships.Name
FROM
Grids
FULL OUTER JOIN Ships
ON Ships.GridID = Grids.GridID
WHERE
Grids.PlayerID = 1
UNION-- (**not** UNION ALL)
SELECT
Grids.GridID,
GridLocations.GridLocation,
(SELECT ShipName FROM Ships WHERE GridID = Grids.GridID AND GridLocation = GridLocations.GridLocation)
FROM
GridLocations, Grids
WHERE
Grids.PlayerID = 1
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Jul 14, 2004
Hello there,
I have 2 tables:
Table: Leads
------------------
ID LDate ClientID
1 04/02/2004 101
2 04/03/2004 103
3 04/04/2004 104
....
Table: Tracking
------------------
ID TDate ClientID Shown Clicked
1 04/02/2004 101 3 2
2 04/03/2004 103 5 4
3 04/04/2004 101 3 9
....
I need a query to display results for any Client ID like this:
Date Leads Shown Clicked
=============================
04/02/2004 1 3 2
04/04/2004 0 3 9
.....
=============================
The following query doesn't work, it display 1 in leads column instead of 0:
select t.Tdate, count(l.id) as Leads, sum(t.shown) as Views
from tracking t left outer join Leads l on r.clientid = t.clientid
where l.clientid = 101
and l.Ldate >= 'April 2,2004'
and t.Tdate >= 'April 2,2004'
group by t.Tdate
Thanks a lot for your time and help in advance.
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Aug 10, 2006
Here's the lookup table, tblLookup:
Task
SubTask
Subset
Superset
Description
And here's the more voluminous table, tblRecords, to which I need to join that:
Task
SubTask
Acct_cat
Actual_Amount
Budgeted_Amount
The problem is that the Task data in tblLookup consists only of the first 5 chars of the same kind of data in tblRecords (e.g., if a field on that record in tblRecords says "BILLYGOAT", that field in tblLookup is entered only as "BILLY").
How do I match them up?
Thanks.
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Aug 31, 2006
Hello,
I am having problems with an outer join statement.
I have written a procedure that tests a table for missing and corrupt data and
to test my procedure, I take a table with 100% correct entries and corrupt them by hand. Then I test if my repaird data is looking like the correct data did.
To do the test, I copy the correct data into a temp table "copy", join it with the "repaired" table and check if any fields look different. The problem is, that i don't get the missing data. The statement is looking like this:
select o.*,'#',k.* from repaired o right outer join copy k on
(str(o.a) + 'A' + str(o.b) + 'A' + str(o.c) =str(k.a)+ 'A' + str(k.b) + 'A' + str(k.c) )
where
o.D<>k.D or
o.E<>k.E or
o.F<>k.F or
...
I have dont the concatenation because I thougt, that a join with 3 fields could be responsible for not finding the missing data in table "copy".
Before that it looked like:
... on (o.a=k.a and o.b=o.b and o.c = k.c) where ...
In table "copy" is a record missing that is in table "repaired".
Why is my statement not printingout that missing record?
Shouldn't be an outer join exactly what I have to use for finding missing data?
I anybody can help me, I would be very happy.
Sven
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