Subquery Woes; Hints ?
Feb 9, 2008
hi all,
I'm trying to run queries on relatively small tables (a few hundred thousand rows) with subqueries of counts per primary key columns as such:
(ColA in tableA is the primary key)
select * from tableA p
where exists (select 1 from ( select ColA, count(1) cnt
from TableA
group by ColA
having count(1)>1 ) t
where t.ColA= p.ColA)
order by some_col
my problem is that sqlserver 2005 sp5 does not materialize the internal subquery properly, or execute it beforehand and it gets confused as heck and pegs the CPUs at 100% forever.
What hints can I use to solve this issue?
I've tried to use ..... "with ...." to prepare/materialize the table upfront, no luck, one version of statement pegged one cpu at 100%, while the other statement pegged ALL cpu's at 100% -- don't remember which.
My only solution right now was to create these subqueries as PHYSICAL tables -- and this would solve the problem but that would entail creating a lot of un-necessary objects.
thanks much for any feedback!!
Cos
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Apr 26, 2008
hello friends.. I am newbie for sql server...I having a problem when executing this procedure .... ALTER PROCEDURE [dbo].[spgetvalues] @Uid intASBEGIN SET NOCOUNT ON; select DATEPART(year, c.fy)as fy, (select contribeamount from wh_contribute where and contribename like 'Retire-Plan B-1% JRF' ) as survivorship, (select contribeamount from wh_contribute where and contribename like 'Gross Earnings' and ) as ytdgross, (select contribeamount from wh_contribute where and contribename like 'Retire-Plan B-1.5% JRP') as totalcontrib, from wh_contribute c where c.uid=@Uid Order by fy Asc .....what is the wrong here?? " Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression."please reply asap...
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Jul 20, 2005
I am getting 2 resultsets depending on conditon, In the secondconditon i am getting the above error could anyone help me..........CREATE proc sp_count_AllNewsPapers@CustomerId intasdeclare @NewsId intset @NewsId = (select NewsDelId from NewsDelivery whereCustomerId=@CustomerId )if not exists(select CustomerId from NewsDelivery whereNewsPapersId=@NewsId)beginselect count( NewsPapersId) from NewsPapersendif exists(select CustomerId from NewsDelivery whereNewsPapersId=@NewsId)beginselect count(NewsDelId) from NewsDelivery whereCustomerid=@CustomeridendGO
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Mar 6, 2008
I am getting an error as
Msg 512, Level 16, State 1, Line 1
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
while running the following query.
SELECT DISTINCT EmployeeDetails.FirstName+' '+EmployeeDetails.LastName AS EmpName,
LUP_FIX_DeptDetails.DeptName AS CurrentDepartment,
LUP_FIX_DesigDetails.DesigName AS CurrentDesignation,
LUP_FIX_ProjectDetails.ProjectName AS CurrentProject,
ManagerName=(SELECT E.FirstName+' '+E.LastName
FROM EmployeeDetails E
INNER JOIN LUP_EmpProject
ON E.Empid=LUP_EmpProject.Empid
INNER JOIN LUP_FIX_ProjectDetails
ON LUP_EmpProject.Projectid = LUP_FIX_ProjectDetails.Projectid
WHERE LUP_FIX_ProjectDetails.Managerid = E.Empid)
FROM EmployeeDetails
INNER JOIN LUP_EmpDepartment
ON EmployeeDetails.Empid=LUP_EmpDepartment.Empid
INNER JOIN LUP_FIX_DeptDetails
ON LUP_EmpDepartment.Deptid=LUP_FIX_DeptDetails.Deptid
AND LUP_EmpDepartment.Date=(SELECT TOP 1 LUP_EmpDepartment.Date
FROM LUP_EmpDepartment
WHERE EmployeeDetails.Empid=LUP_EmpDepartment.Empid
ORDER BY LUP_EmpDepartment.Date DESC)
INNER JOIN LUP_EmpDesignation
ON EmployeeDetails.Empid=LUP_EmpDesignation.Empid
INNER JOIN LUP_FIX_DesigDetails
ON LUP_EmpDesignation.Desigid=LUP_FIX_DesigDetails.Desigid
AND LUP_EmpDesignation.Date=(SELECT TOP 1 LUP_EmpDesignation.Date
FROM LUP_EmpDesignation
WHERE EmployeeDetails.Empid=LUP_EmpDesignation.Empid
ORDER BY LUP_EmpDesignation.Date DESC)
INNER JOIN LUP_EmpProject
ON EmployeeDetails.Empid=LUP_EmpProject.Empid
AND LUP_EmpProject.StartDate=(SELECT TOP 1 LUP_EmpProject.StartDate
FROM LUP_EmpProject
WHERE EmployeeDetails.Empid=LUP_EmpProject.Empid
ORDER BY LUP_EmpProject.StartDate DESC)
INNER JOIN LUP_FIX_ProjectDetails
ON LUP_EmpProject.Projectid=LUP_FIX_ProjectDetails.Projectid
WHERE EmployeeDetails.Empid=1
PLEASE HELP.................
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May 14, 2008
Hi,
I've running the below query for months ans suddenly today started getting the following error :"Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression."
Any ideas as to why??
SELECT t0.DocNum, t0.Status, t0.ItemCode, t0.Warehouse, t0.OriginNum, t0.U_SOLineNo, ORDR.NumAtCard, ORDR.CardCode, OITM_1.U_Cultivar,
RDR1.U_Variety,
(SELECT OITM.U_Variety
FROM OWOR INNER JOIN
WOR1 ON OWOR.DocEntry = WOR1.DocEntry INNER JOIN
OITM INNER JOIN
OITB ON OITM.ItmsGrpCod = OITB.ItmsGrpCod ON WOR1.ItemCode = OITM.ItemCode
WHERE (OITB.ItmsGrpNam = 'Basic Fruit') AND (OWOR.DocNum = t0.DocNum)) AS Expr1, OITM_1.U_Organisation, OITM_1.U_Commodity,
OITM_1.U_Pack, OITM_1.U_Grade, RDR1.U_SizeCount, OITM_1.U_InvCode, OITM_1.U_Brand, OITM_1.U_PalleBase, OITM_1.U_Crt_Pallet,
OITM_1.U_LabelType, RDR1.U_DEPOT, OITM_1.U_PLU, RDR1.U_Trgt_Mrkt, RDR1.U_Wrap_Type, ORDR.U_SCCode
FROM OWOR AS t0 INNER JOIN
ORDR ON t0.OriginNum = ORDR.DocNum INNER JOIN
RDR1 ON ORDR.DocEntry = RDR1.DocEntry AND t0.U_SOLineNo - 1 = RDR1.LineNum INNER JOIN
OITM AS OITM_1 ON t0.ItemCode = OITM_1.ItemCode
WHERE (t0.Status <> 'L')
Thanks
Jacquues
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Jul 19, 2007
Hi guys,
A have a problem that I need understand.... I have 2 server with the same configuration...
SERVER01:
-----------------------------------------------------
Microsoft SQL Server 2000 - 8.00.2191 (Intel IA-64)
Mar 27 2006 11:51:52
Copyright (c) 1988-2003 Microsoft Corporation
Enterprise Edition (64-bit) on Windows NT 5.2 (Build 3790: Service Pack 1)
sp_dboption 'BB_XXXXX'
The following options are set:
-----------------------------------
trunc. log on chkpt.
auto create statistics
auto update statistics
********************************
SERVER02:
-----------------------------------------------------
Microsoft SQL Server 2000 - 8.00.2191 (Intel IA-64)
Mar 27 2006 11:51:52
Copyright (c) 1988-2003 Microsoft Corporation
Enterprise Edition (64-bit) on Windows NT 5.2 (Build 3790: Service Pack 1)
sp_dboption 'BB_XXXXX'
The following options are set:
-----------------------------------
trunc. log on chkpt.
auto create statistics
auto update statistics
OK, the problem is that if a run the below query in server01, i get error 512:
Msg 512, Level 16, State 1, Line 1
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
But, if run the same query in the server02, the query work fine -.
I know that I can use IN, EXISTS, TOP, etc ... but I need understand this behavior.
Any idea WHY?
SELECT dbo.opf_saldo_ctb_opc_flx.dt_saldo,
dbo.opf_saldo_ctb_opc_flx.cd_indice_opf,
dbo.opf_saldo_ctb_opc_flx.cd_classificacao,
dbo.opf_movimento_operacao.ds_tipo_transacao ds_tipo_transacao_movimento ,
dbo.opf_header_operacao.ds_tipo_transacao ds_tipo_transacao_header,
'SD' ds_status_operacao,
dbo.opf_header_operacao.ds_tipo_opcao ,
dbo.opf_header_operacao.id_empresa,
dbo.opf_saldo_ctb_opc_flx.ic_empresa_cliente,
0 vl_entrada_compra_ctro ,0 vl_entrada_compra_premio,
0 vl_entrada_venda_ctro , 0 vl_entrada_venda_premio,
0 vl_saida_compra_ctro, 0 vl_saida_compra_premio,
0 vl_saida_venda_ctro, 0 vl_saida_venda_premio,
0 vl_lucro , 0 vl_prejuizo, 0 vl_naoexec_contrato,
0 vl_naoexec_premio,
sum(dbo.opf_saldo_ctb_opc_flx.vl_aprop_ganho) vl_aprop_ganho,
sum(dbo.opf_saldo_ctb_opc_flx.vl_aprop_perda) vl_aprop_perda,
sum(dbo.opf_saldo_ctb_opc_flx.vl_rever_ganho) vl_rever_ganho,
sum(dbo.opf_saldo_ctb_opc_flx.vl_rever_perda) vl_rever_perda,
sum(dbo.opf_saldo_ctb_opc_flx.vl_irrf) vl_irrf
FROM dbo.opf_saldo_ctb_opc_flx,
dbo.opf_header_operacao ,
dbo.opf_movimento_operacao
WHERE dbo.opf_saldo_ctb_opc_flx.dt_saldo = '6-29-2007 0:0:0.000'
and ( dbo.opf_header_operacao.no_contrato = dbo.opf_saldo_ctb_opc_flx.no_contrato )
and ( dbo.opf_header_operacao.no_contrato = dbo.opf_movimento_operacao.no_contrato )
and ( dbo.opf_movimento_operacao.dt_pregao = (select (o.dt_pregao) from dbo.opf_movimento_operacao o
where o.no_contrato = dbo.opf_movimento_operacao.no_contrato and o.dt_pregao <='6-28-2007 0:0:0.000' ) )
and (dbo.opf_saldo_ctb_opc_flx.ic_tipo_saldo = 'S')
group by dbo.opf_saldo_ctb_opc_flx.dt_saldo,
dbo.opf_saldo_ctb_opc_flx.cd_indice_opf,
dbo.opf_saldo_ctb_opc_flx.cd_classificacao,
dbo.opf_movimento_operacao.ds_tipo_transacao,
dbo.opf_header_operacao.ds_tipo_transacao ,
ds_status_operacao,
dbo.opf_header_operacao.ds_tipo_opcao ,
dbo.opf_header_operacao.id_empresa,
dbo.opf_saldo_ctb_opc_flx.ic_empresa_cliente
Thanks
Nilton Pinheiro
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Jun 16, 2004
Is there anything equivalent available in SQL Server for Oracle HINTS ?
eg : Oracle query
select /* + INdex(sno index1) */ sno from test_table
Thanks,
Sam
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Jul 23, 2005
I am kind of confused about the way SQL Server 2000 handles the hintsthat users supply with their SQL statements.[color=blue]>From BOL, it seems that one can specify them with "WITH (...)" clauses[/color]in SQL statements known as table hints. Sometimes, multiple uses ofthis form in a statement is OK. Then there is the OPTION clause forspecifying statement hints. However, the documentation on OPTIONsection discourages their use.Being relatively new to SQL Server and still learning about it, what isthe general practice? Use hints or not? And if so, how (through WITHor OPTION clauses)?Cheers!
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Sep 12, 2005
My experience with query hints are that they are just that, a hint. What I don't understand is when does SQL decide to ignore your hint?
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May 15, 2001
I am running SQL7 SP2 and and noticing table the query processor table scans when I ussue a between 'date1' and 'date2' instead of using the datetime index. If I put in the index hint (index = ix_datetimeXXXX) the query runs fine. My question is does this index hint restict the use of other indexes in the query and secondly how can I specify multiple index hints? Thanks in advance.
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Sep 29, 2003
Please advise.
Whilst running a query I recieved the error below.
Cannot create a worktable row larger than allowable maximum. Resubmit your query with the ROBUST PLAN hint.
What is ROBUST PLAN hint?.
Help Appreciated.
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May 1, 2007
Hi
My VB.Net (with SQL Server backend) application currently allows more than one user to look at a particular record at the same time. This is not a problem unless both those users also try to update that record as well. One user's changes then overwrite the other's.
I've been reading up on locking hints but my database knowledge is a little scant and I'm also rather dense and need things spelling out for me!! So I have a few questions that I hope someone can help with:
If I add an updlock to my update SQL statement, this would allow both users to view the record but would only allow one user's changes through. Is that correct?
For the other user, would SQL Server return an error message that I can use to tell the user that their update has not worked?
Would I have to get my VB.NET application to re-get the record information so that the user who's update failed can see the changes made by the other user and reapply their own changes?
Does the updlock become unlocked once the record is updated or do I need to specifically unlock it somehow?
Thanks!
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Apr 20, 2007
I am having problems with doing what seams to be a very easy query. For some reason the SQL Server is trying to do nested loops instead of hash join. I tried to force the use of the hash join using the join hint.
Query 1
select *
from DIM_DATE DD
inner hash join (
select A.student_key,
CONVERT(int, CONVERT(varchar, COALESCE (A.date_withdrawn, getdate()), 112)) AS date_withdrawn_current
FROM FACT_STUDENT AS A
) SSE on DD.date_key= date_withdrawn_current
This query gives an error:
Msg 8622, Level 16, State 1, Line 1
Query processor could not produce a query plan because of the hints defined in this query. Resubmit the query without specifying any hints and without using SET FORCEPLAN
Second query is not really what I want but it illustrate that it works fine when getdate() is not used.
Query 2
select *
from DIM_DATE DD
inner hash join (
select A.student_key,
CONVERT(int, CONVERT(varchar, COALESCE (A.date_withdrawn, A.date_enrolled), 112)) AS date_withdrawn_current
FROM FACT_STUDENT AS A
) SSE on DD.date_key= date_withdrawn_current
Is there some problem with using function getdate() ? It works fine in SQL Server 2000
This problem occurs on the SQL Server 2005 SP2 ( 9.00.3050.00 (X64) )
and (9.00.2050)
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Jul 6, 2014
I am trying to add the results of both of these queries together:
The purpose of the first query is to find the number of nulls in the TimeZone column.
Query 1:
SELECT COUNT(*) - COUNT (TimeZone)
FROM tablename
The purpose of the second query is to find results in the AAST, AST, etc timezones.
Query 2:
SELECT COUNT (TimeZone)
FROM tablename
WHERE TimeZone NOT IN ('EST', 'MST', 'PST', 'CST')
Note: both queries produce a whole number with no decimals. Ran individually both queries produce accurate results. However, what I would like is one query which produced a single INT by adding both results together. For example, if Query 1 results to 5 and query 2 results to 10, I would like to see a single result of 15 as the output.
What I came up with (from research) is:
SELECT ((SELECT COUNT(*) - COUNT (TimeZone)
FROM tablename) + (SELECT COUNT (TimeZone)
FROM tablename
WHERE TimeZone NOT IN ('EST', 'MST', 'PST', 'CST'))
I get a msq 102, level 15, state 1 error.
I also tried
SELECT ((SELECT COUNT(*) - COUNT (TimeZone)
FROM tablename) + (SELECT COUNT (TimeZone)
FROM tablename
WHERE TimeZone NOT IN ('EST', 'MST', 'PST', 'CST')) as IVR_HI_n_AK_results
but I still get an error. For the exact details see:
[URL]
NOTE: the table in query 1 and query 2 are the same table. I am using T-SQL in SQL Server Management Studio 2008.
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Mar 19, 2006
I noticed that the online books say the following:
Note The SQL Server query optimizer automatically makes the correct determination. It is recommended that table-level locking hints be used to change the default locking behavior only when necessary.
Also, at another place in online books, it says:
The table hints are ignored if the table is not accessed by the query plan.
From the above, it seems that using locking hints is not going to guarantee that SQL Server will follow them. Is this true?
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Sep 9, 1998
Hi,
Why SQL server dose work as follows when I dose not provide any join hints?
It looks like HASH join is the best plan, but SQL dose not. What kind of
JOIN method is used by SQL optimizer?
Thanks in advance,
Wonhyuk William Chung
wonhyukc@usa.net
MCSE/ MCT
-----------
use northwind
go
select orderid, CompanyName --productname,
from orders o inner join customers c on o.customerID = c.CustomerID
/*
Table `Orders`. Scan count 91, logical reads 184, physical reads 0,
read-ahead reads 0.
Table `Customers`. Scan count 1, logical reads 1, physical reads 0,
read-ahead reads 0.
.0553
*/
select orderid, CompanyName --productname,
from orders o inner hash join customers c on o.customerID = c.CustomerID
/*
hash
Table `Customers`. Scan count 1, logical reads 1, physical reads 0,
read-ahead reads 0.
Table `Orders`. Scan count 1, logical reads 4, physical reads 0, read-ahead
reads 0.
.115
*/
select orderid, CompanyName --productname,
from orders o inner merge join customers c on o.customerID = c.CustomerID
/*
merge
Table `Customers`. Scan count 1, logical reads 4, physical reads 1,
read-ahead reads 3.
Table `Orders`. Scan count 1, logical reads 4, physical reads 0, read-ahead
reads 0.
.115
*/
select orderid, CompanyName --productname,
from orders o inner loop join customers c on o.customerID = c.CustomerID
/*
loop
Table `Customers`. Scan count 830, logical reads 1681, physical reads 0,
read-ahead reads 0.
Table `Orders`. Scan count 1, logical reads 5, physical reads 0, read-ahead
reads 0.
.116
*/
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Sep 3, 1999
I need to use two hints (INDEX=indexname) and (NOLOCK).
I've tried
(INDEX=indexname),(NOLOCK)
(INDEX=indexname,NOLOCK)
(INDEX=indexname)(NOLOCK)
and nothing works.
Thanks
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Aug 5, 1999
While investigating performance problems within an application recently I carried out some tests using SET SHOWPLAN ON.
I had a query like this within a stored procedure:
SELECT MAX(X) FROM Y WHERE Z LIKE @MYVAR
Where @MYVAR was passed in. I discovered that SQL Server did a Table Scan even when Z had an index on it. A problem with 200,000 rows!
If I said
SELECT MAX(X) FROM Y WHERE Z LIKE 'HELLO%'
(i.e., used a constant instead of a variable) SQL Server did use the index correctly and did not do a table scan.
I got around this by rewriting my statement:
SELECT MAX(X) FROM Y (INDEX=MYINDEX) WHERE Z LIKE @MYVAR
in other words by manually specifying the index I had created on the Z column.
Hope this helps someone.
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Jul 23, 2001
Hello.
There is a trace flag that tells SQL Server to ignore index hinting in incoming queries. I'm having a Monday morning problem and I can't remember the trace number nor find it in my notes. Can anyone else come up with it?
Thanks in advance,
-darin
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Aug 18, 2006
have a dts package that does txt -> sql server.
i have 200 txt files with the same exact format.
just want to know if i can write a SP passing a parameter that loads this txt files. because i dont wanna create 200 packages or 200 sources to load 200 txt files.
say:
exec SP_loadTXT txt1
or should i use bulk insert?
any approaches are fine. any suggestions are fine too.
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Dec 3, 2007
I've got a SELECT WITH (UPDLOCK, ROWLOCK) WHERE followed by an UPDATE WHERE statement. The results of the SELECT statement are deserialized in C# and updates are made to the deserialized object. Then the object is serialized back into the table with the UPDATE statement. I've got this code running within a transaction scope with the ReadCommited isolation level.
My service receives requests to update data and the requests can come in on different threads. What I'm seeing, is that once in a while, the log messages from my application indicate that two different threads are able to issue the above SELECT statement and both are receiving results. This is a problem since the thread that issues the last UPDATE will overwrite the changes made by the first. Each thread has its own connection and transaction scope.
I've researched all over the place and have tried a few different things, but all things point to the fact that query hints are just hints and that SQL may or may not pay attention to them. If that's the case, how am I suppose to perform a SELECT with the intention of updating so that no one else can do the same? I haven't tried table level locking, but I'd really like to avoid that if possible.
-Mike
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Jul 14, 2006
Hi,
Using Merge replication, I have a table that is filtered using the HOST_NAME() function. The filter also makes use of a function (as the HOST_NAME() is overriden to return some complex data).
Everything replicates and filters just fine. but when I add a join filter on a different table (the join filter is a simple foreign key join) I get the following error when the snapshot agent is run:
Message: Conflicting locking hints are specified for table "fn_GetIDList". This may be caused by a conflicting hint specified for a view.
Command Text: sp_MSsetup_partition_groups
Parameters: @publication = test1
fn_GetIDList is the function used in the original filter.
Thanks for any help
Graham
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Aug 23, 2007
I am trying to use hints and they don't seem to be working.
Something like:
select * from TABLE_NAME with (tablock,xlock)
fails.
Documentation clearly states that this is supported (TABLOCK, NOLOCK, XLOCK, etc.), so I must be missing something simple.
Please let me know how do I use Hints in SQL Server 2005 Compact.
Thanks.
PS.
I am using C#. It doesn't work in my code when I use
SqlCeDataReader rs = cmd.ExecuteReader();
And it doesn't work from inside the VS 2005 "query tool" or whatever it is called, when you do "Connect to Database" and so on.
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Dec 3, 2007
Do you know of a way, in the OLE DB Command (Executing a sql command for each record), to specify a lock hint?
Example: in my component, I want to update a table but I want to specify a ROWLOCK or UPDLOCK hint.
When I try using this sql statement in the 'SqlCommand' property:
UPDATE DIM_Accounts WITH (UPDLOCK)
SET COL1 = ''
SSIS gives a syntax error.
Do you know any workarounds?
Thanks!
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Jul 25, 2006
Hi,
I would like to implement a kind of standard packages which can be used in all other processes and will be started using the variables.
But I do not know where to store these kind of packages in "best practise", because we
- would like to use them in Dev and in "Real" also without having to change something in the other processes
- we are storing the packages in the folders of the package store
and as far as I understood I would have to share the package store to all developers though that they would be able to do this?
Then I would better choose another folder with defined access rights I think...
Or would it be better to spend some time in developing a custom component?
But this component would work with recordsets rather than the standard data flow elemtents and therefor I would expect a leak of performance...
Or is it possible to do "trasnformation" from a packae to a custom component?
Thanks in advice!
cheers,
Markus
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Apr 25, 2008
This article instructed me on how to process rows from a table used as a data queue for multiple processes.
http://www.mssqltips.com/tip.asp?tip=1257
I tested this against the AdventureWorks DB (SQL 2005) and multiple SQL connections inside of Sql Mgmt. Studio).
Connection1:
BEGIN TRANSACTION
SELECT TOP 1 * FROM Production.WorkOrder WITH (updlock, readpast) --skips over locked rows
--COMMIT TRANSACTION
Connection2:
BEGIN TRANSACTION
SELECT TOP 1 * FROM Production.WorkOrder WITH (updlock, readpast) --skips over locked rows
COMMIT TRANSACTION
This works like I want where connection 2 skips over the locked row from connection 1 and gets the next available record from the table / queue. However, when I add ORDER BY tsql to each sql statement, connection 2 is now blocked waiting for Connection 1 to commit. (This is not what I want)
Connection1:
BEGIN TRANSACTION
SELECT TOP 1 * FROM Production.WorkOrder WITH (updlock, readpast) order by DueDate
--COMMIT TRANSACTION
Connection2:
BEGIN TRANSACTION
SELECT TOP 1 * FROM Production.WorkOrder WITH (updlock, readpast) order by DueDate --is blocked until connection 1 commits transaction
COMMIT TRANSACTION
How do I prevent blocking when using these locking hints with ORDER BY?
thanks
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Oct 26, 2006
Greetings,
I have two tables:
CustomerOrder
----
ID
CustomerID
StatusID
CustomerOrderDetail
----
ID
Order_ID
StockID
Quantity
CustomerOrderDetail table has clustered unique index for ID and non-clustered for Order_ID
SQL Server 2005 is using table scan for CustomerOrderDetail table When I user the following query:
select
cod.*
from CustomerOrder co
inner join CustomerOrderDetail cod ON cod.Order_ID = co.ID
where
co.StatusID = 8 -- Pending
Both of the tables are pretty big, detail table has more than million records, so scanning the table is a bad idea.
When I specify hint to use index then sql seeks, but how do I make SQL server to use index automatically? I don't want to use hints in my queries.
Thanks!
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Nov 26, 2001
I have a DTS setup that copies a couple of databases from one server to another in order to have a hot backup server. When I execute the DTS package from the DTS portion of the Enterprise Manager tree it runs fine. When I schedule it, it fails with the following error:
DTSRun OnStart: DTSStep_OMWCustomTasks.OMWTransferLogins_1
DTSRun OnError: DTSStep_OMWCustomTasks.OMWTransferLogins_1, Error = -2147467259 (80004005)
Error string: Unspecified error
Error source: Microsoft Data Transformation Services (DTS) Package
Help file: sqldts80.hlp
Help context: 700
I cannot find anywhere where this error is explained or even referenced. Any help would be greatly appreciated.
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Mar 9, 2000
Here's the table:
Create Table{
id int
comments text}
Much of the data in the Comments field already has carriage return in it. When I use bcp out -c, it uses as a new record to figure out when the new row stats. However, the data in that column has carriage returns! Hence, when it detects the carriage return in the user data(comments) itself, it is pushing the remainder of that text to the 2nd line. Then, when I try to BCP IN, it is trying to push it into ID column!
The text file looks something like this:
ID COMMENTS
-- ---------
1 This is a very long comment with a line return now. User hits return here.
This should be part of the previous record but gets detected as a new row
2 Some Text
3 Some Text
So, in the BCP IN, it is trying to put 'This should be part of..' into the ID column and I am getting an error.
Is there any way I can get BCP to NOT recognize in user data as end of a record??
Thanks
Joyce
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Jan 10, 2007
We've had RS running on an internal network for a while now and initially
installed it with no SSL certificate. We recently decided that we would like
to make some reports available through the web, and that we should secure the
data with SSL. So, we registered and set up the subdomain, bought and
installed the certificate, closed off all but port 443 on the box in
question, and opened it up to the world. We tweaked a few options in the RS
config files (after reading around):
RSReportServer.config:
- SecureConnectionLevel changed from 0 to 2 (recommended) - this changed
all but the help file links to https://.
- UrlRoot changed from HTTP to HTTPS, and also changed from internal to
external name (to match the SSL certificate)
RSWebApplication.config:
- ReportServerUrl changed from HTTP to HTTPS and changed from internal to
external name.
After this was changed, along with some IIS tweaks, we were able to get to
the report manager through the web, and force SSL only. The problem right
now is that we are intermittently getting "Underlying connection closed"
errors (described here: http://support.microsoft.com/kb/915599). ; The odd
thing is that we first get the Windows login prompt, wait about a minute then
get the error (which is encapsulated by the Report Manager page style).
After a quick browser refresh, the Report Manager appears almost instantly,
with no 2nd request for a windows login.
My question: Are there any IIS or RS config settings I can look at, or any
log file entries I should look for in order to determine the cause of this
problem? My guess at this point is the error has to do with some sort of
timeout, but to be honest, I have no clue.
Thanks in advance!
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Oct 18, 2006
I want to be able to intersect many tables. I am building my query from vb code in asp .net based on key fields entered in a search engine box.my query should look like this, which will return the rows that will have the values var, var_2, var_3 in any columns. All three must be in a row for it to be a hit. I cant get this to work in ms sql. I don't know if it supports this feature.select * from t where column1 Like '%var%' or column2 like '%var%' or column3 like '%var%'intersect select * from t where column1 Like '%var_2%' or column2 like '%var_2%' or column3 like '%var_2%'intersectselect * from t where column1 Like '%var_3%' or column2 like '%var_3%' or column3 like '%var_3%' I also googled around and found a where exists... But cant seem to figure out how to do multiple tables:select * from t where exists (select * from t where column1 Like '%var_3%' or column2 like '%var_3%' or column3 like '%var_3%') i would like to add multiple conditions to the where exists table. Could anyone please tell me what I am doing wrong.
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Jan 24, 2000
Taking the advise from one of the postings I removed the setting for checkpoint log
on checkpoint. I have set up a batch job that does a dbcc checktable (syslogs)
and a dump transaction with no_log every 15 minutes. We are a development
shop and do not need the transaction log, I would have liked to use the truncate
log on checkpoint. I found that the transaction log seems to grow indefinitely by
viewing DBCC sqlPerf and sp_spaceused if I do not first issue the checktable
command. Why is this needed? This is the same problem I had with the truncate log
on checkpoint option. Has anyone else encountered a similar problem? We have an
application that does single row inserts multithreaded at a rate of 2500 rows a second.
Without performing the dbcc checktable the log filled to over 80% in a 45 minute period.
Running the stored procedure with the two commands the logs stays under 40%.
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Nov 10, 2004
Trying to get my jobs to send mail when job fails. Should be easy but it's giving me headache
Had a whole slew of issues. Outlook is installed with a n outlook mail profile set up that can send mail in outlook. I can create a SendMail DTS and execute it to send mail
Email works in these scenarios
1. I create a DTS package in SQL Server with just SendMail with the same Profile "ABC" and click Execute and it sends
2. I can send using Outlook with the same profile "ABC"
3. I can run DTSRun with command prompt calliing the DTS package and it sends fine
However it wont send in these 3 scenarios (where I need it!):
1. I go to Operator, and put my Profile "ABC" in the Email Name, click Test and I get this error "Error 22022: SQLServerAgent Error: The SQLSErverAgent mails ession is not running; check the mail profile and/or the SQLServerAgent service startup account in the SQLSErverAGent Properties
sQLServer Agent is running
2. If I add the DTS Package "EmailTest" to one of my jobs as a step to go to if the 1st step fails, nothing gets sent
3. In JObs -- Notificatioin, If I set the E-maill operator to my operator, nothing gets sent
I set the Mail Profile to the Mail Profile (in SQL Server AGent' properties)
However when I click Test, I get this error:
Error 0: Cannot load the DLL sqlmap70.dll, or one of the DLLs it references
I am using
SQLServer Version 8.00.194,
OS Windows 2003
Help!
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