E.g.
SELECT *
FROM TestOne T1
WHERE
T1.ID1 IN (SELECT ID1 FROM TestTwo)
GO
SELECT T1.*
FROM TestOne T1
INNER JOIN TestTwo T2 ON T1.ID1 = T2.ID1
Which one among them is better?
I have seen contradictory explanations on the web and hence pasting a query here...
Personally I had an experience where IN I felt was in the end costly compared to INNER JOIN... was I correct in such a deduction?
Thanks,
Pratap.
is it possible to replace join type ( for eg. nested loop with hashjoin and so on) in xml plan...we will fst take plan in xml format ( show xml plan ) and then we willreplace join with other one .. and then execute this plane .. to seethe effect....for this we need to understand the way join information get stored inxml ....and then replace...for any extra info we can put garbage .. which will be filled byactual value while execution...so my question is : is it possible...( i think it is very muchpossible)and if yes then guide me... from where i can get these joinformat .. so that i can replace...or just running query on some dataset for both join type and thncomparing the way the get stored .. is sufficient to convert...thankx
View 1 Replies View RelatedI'm using SQL Server 2012 Analysis services in Tabular mode and connected to Oracle Database and while importing, I'm getting below error after importing some rows.
OLE DB or ODBC error: Accessor is not a parameter accessor.. The current operation was cancelled because another operation in the transaction failed.
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
I have two xml source and i need only left restricted data.
how can i perform left restricted 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 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.
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?
I'm having trouble with a multi-table JOIN statement with more than one JOIN statement.
For each order, I need to return the following: CarsID, CarModelName, MakeID, OrderDate, ProductName, Total ordered the Car Category.
The carid (primary key) and carmodelname belong to the Cars table.
The makeid and orderdate belong to the OrderDetails table.
The productname and carcategory belong to the Product table.
The number of rows returned should be the same as the number of rows in OrderDetails.
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?
View 4 Replies View RelatedI 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?
View 3 Replies View RelatedI'm using SQL Server 2005.
A piece of software I wrote starting timing out on a query that left outer joins a table to a view. Both the table and view have approximately the same number of rows (about 170000).
The table has 2 very similar columns, one is a varchar(1) and another is varchar(100). Neither are included in any index and beyond the size difference, the columns have the same properties. One of the employees here uses the varchar(1) column (called miscsearch) to tag large sets of rows to perform some action on. In this case, he had set 9000 rows miscsearch value to "g". The query then should join the table and view for all rows where miscsearch is set to g in the table. This query takes at least 20 minutes to run (I stopped it at this point).
If I remove the "where" clause and join all rows in the two tables, the query completes in about 20 seconds. If set the varchar(100) column (called descrip) to "g" for the same rows set via miscsearch, the query completes in about 20 seconds.
If I force the join type to a hash join, the query completes using miscsearch in about 30 seconds.
So, this works:
SELECT di.File_No, prevPlacements, balance,'NOT PLACED' as status FROM Info di LEFT OUTER HASH JOIN View_PP pp ON di.ram_file_no = pp.file_no WHERE miscsearch = 'g' ORDER BY balance DESC
and this works:
SELECT di.File_No, prevPlacements, balance,'NOT PLACED' as status FROM Info di LEFT OUTER JOIN View_PP pp ON di.ram_file_no = pp.file_no WHERE descrip = 'g' ORDER BY balance DESC
But this does't:
SELECT di.File_No, prevPlacements, balance,'NOT PLACED' as status FROM Info di LEFT OUTER JOIN View_PP pp ON di.ram_file_no = pp.file_no WHERE miscsearch = 'g' ORDER BY balance DESC
What should I be looking for here to understand why this is happening?
Thanks,
john
I am running SQL Server 7. I have an user that need to run the Set Identity On a table, and he gets an error message:
Server: Msg 8104. The current user is not the database or object owner of table 'tpartners'. Cannot perform SET operation.
I can grant this user with DBO user role, then he can edit anyting on the database.
Is there a work around that he can run the Set cmd and I don't need to grant him the DBO user role?
HiI have a database with full recovery model.Every night at 11.00pm performs full backup, and dayly every 3 hoursperforms differential backup, and trasnactional log backup performsevery 15 minutes during a day.I am interested what operations i can not recover from log ordifferential backup.I saw that when i drop table i can recover it from log backup, but isthere some operation that can not be recoverThanks a lotAlex*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
View 1 Replies View RelatedDear friends, I was not able to find any perfect toolbox item to use "not in" operation on my selected columns, also how can we use multiple join conditions in the merge join item? Thanks,
View 1 Replies View RelatedWhy do I get the message "Operation can't be completed?" when I try to save a stored procedure!!! When I create a new stored procedure and copy the code into it it works fine!
View 2 Replies View RelatedI have a sp that creates a #temp table and performs a bulk insert.
CREATE TABLE #template (template varchar(8000))
EXEC ('bulk INSERT #template FROM "' + @filename + '"')
SET @html = (SELECT template FROM #template)
DROP TABLE #template
...
When I access this sp with any other user than 'sa' I get this error message:
The current user is not the database or object owner of table '#template'. Cannot perform SET operation.
I've been everywhere (with no success) in the sql srv admin to look for the appropriate check box to allow another named user to access this sp.
Can anyone help?
On SQL 2k, How can I set my DTS package, which imports a 3 million row .TXT file to a table, as a NON-LOGGED operation?
(LOGGING is taking tooooo long!! I will be sure to run a full DB backup when the job completes.)
thx-
BT
If tables are in relation (foreign key), then how should one proceed for deletion of a record from a master table?
how will the database itself tackle the problem? What should be done from the front end for this?
please help.......I urgently require a solution for this.
I was looking into some of the System stored procedures like sp_denylogin, sp_grantLogin etc. I found bit wise operations like
update master.dbo.sysxlogins set xstatus = (xstatus & ~1) | 2, xdate2 = getdate()
where name = @loginame and srvid IS NULL
How does the bitwise NOT(~) works with different datatypes like INT, SMALLINT and TINYINT?
Look at the following sample code and result. I just wanted to understand how it works with int and smallint
declare @a int
declare @b smallint
declare @c tinyint
select @a = 1, @b = 1, @c = 1
select @a=~@a, @b= ~@b, @c= ~@c
select @a, @b, @c
Result
~~~~~
-2-2254
Thanks in advance
Gnana
hello,
I have a problem where I am calling the BCP utility to write a table to a file. I then need to delete the rows of the table. but not all of them. This all works fine. I've been asked to place this into a transaction..incase a piece fails. When I do that...SQL server hangs. I must shutdown SQL Server.
Any idea why that would happen. I am using the xp_cmdshell stored procedure to invoke bcp utility within a stored procdure. The procedure is executed every 15 minutes to provide files to an outboard system.
Salik.
IDENTITY_INSERT is already ON for table 'Elbalazo.dbo.DeliveryOption'. Cannot perform SET operation for table 'City'
Here's my entire script:
--------------------------------------------------------------------
/*Disable Constraints & Triggers*/
exec sp_MSforeachtable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL'
exec sp_MSforeachtable 'ALTER TABLE ? DISABLE TRIGGER ALL'
/*Perform delete operation on all table for cleanup*/
exec sp_MSforeachtable 'DELETE ?'
/*Enable Constraints & Triggers again*/
--exec sp_MSforeachtable 'ALTER TABLE ? CHECK CONSTRAINT ALL'
exec sp_MSforeachtable 'ALTER TABLE ? ENABLE TRIGGER ALL'
/*Reset Identity on tables with identity column*/
exec sp_MSforeachtable 'IF OBJECTPROPERTY(OBJECT_ID(''?''), ''TableHasIdentity'') = 1 BEGIN DBCC CHECKIDENT (''?'',RESEED,0) END'
-- City
SET IDENTITY_INSERT City ON
INSERT INTO Elbalazo.dbo.City (
[CityID]
,[CityName]
,[CountyID]
,[Active])
SELECT [CityID],[CityName],[CountyID],1
FROM [ElbalazoProduction].dbo.tbl_City
SET IDENTITY_INSERT City OFF
-- State
SET IDENTITY_INSERT [State] ON
INSERT INTO Elbalazo.dbo.State (
[StateID]
,[State]
,[Active])
SELECT [StateID],[State],1
FROM [ElbalazoProduction].dbo.tbl_State
SET IDENTITY_INSERT [State] OFF
-- NumberOfPeopleOption
SET IDENTITY_INSERT NumberOfPeopleOption ON
INSERT INTO [Elbalazo].[dbo].[NumberOfPeopleOption]
([NumberOfPeopleOptionID]
,[NumberOfPeopleNameOption]
,[Active])
SELECT [NumberOfPeopleID], [NumberOfPeopleName],1
FROM [ElbalazoProduction].dbo.tbl_NumberOfPeople
SET IDENTITY_INSERT NumberOfPeopleOption OFF
-- DeliveryOption
SET IDENTITY_INSERT DeliveryOption ON
INSERT INTO [Elbalazo].[dbo].[DeliveryOption]
([DeliveryOptionID]
,[DeliveryOptionName]
,[Active])
SELECT [DeliveryOptionID], [DeliveryOptionName],1
FROM [ElbalazoProduction].dbo.tbl_DeliveryOption
SET IDENTITY_INSERT DeliveryOption OFF
-- User
SET IDENTITY_INSERT [User] ON
INSERT INTO [Elbalazo].[dbo].[User]
([UserID]
,[FirstName]
,[LastName]
,[Address1]
,[Address2]
,[CityID]
,[StateID]
,[Zip]
,[PhoneAreaCode]
,[PhonePrefix]
,[PhoneSuffix]
,[Email]
,[CreateDate]
,[Active])
SELECT [CustomerID]
,[FirstName]
,[LastName]
,[AddressLine1]
,NULL
,[CityID]
,[StateID]
,[Zip]
,[PhoneAreaCode]
,[PhonePrefix]
,[PhoneSuffix]
,[EmailPrefix] + '@' + [EmailSuffix]
,[CreateDate]
,1
FROM [ElbalazoProduction].dbo.tbl_Customer
SET IDENTITY_INSERT [User] OFF
-- EntreeOption
SET IDENTITY_INSERT EntreeOption ON
INSERT INTO [Elbalazo].[dbo].[EntreeOption]
([EntreeOptionID]
,[EntreeOptionName]
,[Active])
SELECT [EntreeOptionID]
,[EntreeOptionName]
,1
FROM [ElbalazoProduction].dbo.tbl_EntreeOption
SET IDENTITY_INSERT EntreeOption OFF
-- CateringOrder
SET IDENTITY_INSERT CateringOrder ON
INSERT INTO [Elbalazo].[dbo].[CateringOrder]
([CateringOrderID]
,[UserID]
,[NumberOfPeopleID]
,[BeanOptionID]
,[TortillaOptionID]
,[CreateDate]
,[Notes]
,[EventDate]
,[DeliveryOptionID])
SELECT [CateringOrderID]
,[CustomerID]
,[NumberOfPeopleID]
,[BeanOptionID]
,[TortillaOptionID]
,[CreateDate]
,[Notes]
,[EventDate]
,[DeliveryOptionID]
FROM [ElbalazoProduction].dbo.tbl_CateringOrder
SET IDENTITY_INSERT CateringOrder OFF
-- CateringOrder_EntreeItem
SET IDENTITY_INSERT CateringOrderEntreeItem ON
INSERT INTO [Elbalazo].[dbo].[CateringOrderEntreeItem]
([CateringOrderEntreeItemID]
,[CateringOrderID]
,[EntreeItemID])
SELECT [CateringORder_EntreeItemID]
,[CateringOrderID]
,[EntreeItemID]
FROM [ElbalazoProduction].dbo.tbl_CateringOrder_EntreeItem
SET IDENTITY_INSERT CateringOrderEntreeItem OFF
select * from BeanOption
select * from CateringItemIncluded
select * from CateringOrder
select * from CateringOrderEntreeItem
select * from CateringOrderEntrees
select * from City
select * from Country
select * from DeliveryOption
select * from EntreeOption
select * from NumberOfPeopleOption
select * from [State]
select * from [User]
Can anybody explain whether Delete and Truncate are Logged Operations?
On some site, I came accross Truncate is not Logged Operation, on some site, Truncate is Logged Operation.
Can anybody explain, what exactly it is?
Thanks in advance,
Mahesh
A standard IN operation is like doing a series of OR statements in your WHERE clause. Is there anything like an IN statement that is like using a series of AND statements instead?
I tried looking into the ALL operator but that didn't seem to do it or else I just couldn't figure out how to use it correctly.
set rowcount 1select Idnum1,Idnum3 from mytable order by Idnum1 DESC, idnum3 ASCis equivelent toselect first(Idnum1),first(idnum3) from mytable order by first(Idnum1)DESC ,first(Idnum3) ASCIsn't that silly? why did Microsoft not add an agregate function Firstfor the Microsoft SQL Server to be consistent with its Microsoft Accessproduct eh?
View 3 Replies View Relatedi have FTP task in my SSIS package.
when executing FTP task,what i want each time i want to store copied file with new FileName(like timestamp attachto file name)
how i can do this?
Thanks,
Chetan S. Raut.
What I am looking to do is have a stored procedure begin a dialog with my request service.
With that dialog established my stored procedure sends 50 request messages, one for each of the 50 of the United States. I want these to be processed asynchronously by a procedure that is called on activation for the request queue. In that activation procedure the request is processed against the respective state and a response message is sent to the response service (to the response queue). I want to be able to tie these request messages and response messages together with some type of shared identifier. These requests don't need to be processed in any specific order and don't need any fancy locking mechanism via conversation group since these requests require to be processed asynchronously. What is the best approach? Do I need to create 50 seperate queues and open dialogs with each? If this is the route to take, would this be a performance hit?
My goal is to have all 50 states process all at once, each finishing with a response message sent to the response queue. The initiating procedure, after sending these 50 requests, would then spin and wait for all 50 to complete, be it a response, error, or timeout. When all 50 have returned, the procedure would then merge the results and return. So as you can see in my scenario, I dont care when a state is complete as they do not affect the outcome, nor do they access any of the same resources when being processed.
Awesome! I don't alway get the email notification of whoever reply to the posting. I think it only work after I log off of the forum.
Scott
We are trying to migrate from sql 2005 to 2012. I am changing one of the implicit join to explicit join. As soon as I change the join, the number of rows returned are fewer than before.
Below is my Implict join query
INSERT #RIF_TEMP1 (rf1_row_no,rf1_rif, rf1_key_id_no, rf1_last_date, rf1_start_date)
SELECT currow.rf0_row_no, currow.rf0_rif, currow.rf0_key_id_no, prevrow.rf0_start_date, currow.rf0_start_date
FROM #RIF_TEMP0 currow , #RIF_TEMP0 prevrow
[Code] ....
and below is explict join query
INSERT #RIF_TEMP1 (rf1_row_no,rf1_rif, rf1_key_id_no, rf1_last_date, rf1_start_date)
SELECT currow.rf0_row_no, currow.rf0_rif, currow.rf0_key_id_no, prevrow.rf0_start_date, currow.rf0_start_date
FROM #RIF_TEMP0 currow LEFT JOIN #RIF_TEMP0 prevrow
ON (currow.rf0_row_no = prevrow.rf0_row_no + 1)
[Code] ....
the count returned from both the queries is different.
I am not sure what am I doing wrong. The count of #RIF_TEMP0 is always 32, it never changes, but the variable @countTemp is different for both the queries.
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 guys,
I'll appreciate any help with the following problem:
I need to retrieve data from 3 tables. 2 master tables and 1 transaction table.
1. Master table TBLOC contain 2 records :
rcd 1. S01
rcd 2. S02
2. Master table TBCODE contain 5 records:
rcd 1. C1
rcd 2. C2
rcd 3. C3
rcd 4. C4
rcd 5. C5
3. Transaction table TBITEM contain 4 records which link to 2 master table:
rcd 1. S01, C1, CAR
rcd 2. S01, C4, TOY
rcd 3. S01, C5, KEY
rcd 4. S02, C2, CAR
I use Left Join & Right Join to retrieve result below (using non-ASNI method) but it doesn't work.
Right Join method:
SELECT C.LOC, B.CODE, A.ITEM FROM TBITEM A RIGHT JOIN TBCODE B ON A.CODE = B.CODE
RIGHT JOIN TBLOC C ON A.LOC = C.LOC
GROUP BY C.LOC, B.CODE, A.ITEM ORDER BY C.LOC, B.CODE
When I use Non-ASNI method it work:
SELECT C.LOC, B.CODE, A.ITEM FROM TBITEM A, TBCODE B, TBLOC C
WHERE A.CODE =* B.CODE AND A.LOC =* C.LOC
GROUP BY C.LOC, B.CODE, A.ITEM ORDER BY C.LOC, B.CODE
Result:
LOC CODE ITEM
-----------------------------
S01 C1 NULL
S01 C2 NULL
S01 C3 CAR
S01 C4 TOY
S01 C5 KEY
S02 C1 NULL
S02 C2 CAR
S02 C3 NULL
S02 C4 NULL
S02 C5 NULL
Please Help.
Thanks.
Is there a way to do a super-table join ie two table join with no matching criteria? I am pulling in a sheet from XL and joining to a table in SQLServer. The join should read something like €œfor every row in the sheet I need that row and a code from a table. 100 rows in the sheet merged with 10 codes from the table = 1000 result rows.
This is the simple sql (no join on the tables):
select 1.code, 2.rowdetail
from tblcodes 1, tblelements 2
But how to do this in SSIS?
Thanks - Ken
I read that merge joins work a lot faster than hash joins. How would you convert a hash join into a merge join? (Referring to output on Execution Plan diagrams.)
THANKS