Local Temp Tables And OLEDB/ODBC
May 5, 2008
I have recently switched from ODBC to OLEDB and I have noticed a difference in the way these two handle local temp tables. With ODBC the scope of the local temp tables is the connection in which they were created (unless they are created in a stored proc, in which case the scope is the stored proc). That means you can create the temp table in one statement, fill it with data in another and retrieve the data in the third, and everything works fine as long as these statements are bound to the same connection. I have used this in a few places in my applications as a way to store connection specific data and a way to simplify some other things.
But now I have a problem. In OLEDB the scope of the temp tables is the session it was created in and that is not good for me since I can not store connection specific data in temp tables any more.
Any ideas?
Thank you!
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Nov 17, 2004
Hi all,
Looking at BOL for temp tables help, I discover that a local temp table (I want to only have life within my stored proc) SHOULD be visible to all (child) stored procs called by the papa stored proc.
However, the following code works just peachy when I use a GLOBAL temp table (i.e., ##MyTempTbl) but fails when I use a local temp table (i.e., #MyTempTable). Through trial and error, and careful weeding efforts, I know that the error I get on the local version is coming from the xp_sendmail call. The error I get is: ODBC error 208 (42S02) Invalid object name '#MyTempTbl'.
Here is the code that works:SET NOCOUNT ON
CREATE TABLE ##MyTempTbl (SeqNo int identity, MyWords varchar(1000))
INSERT ##MyTempTbl values ('Put your long message here.')
INSERT ##MyTempTbl values ('Put your second long message here.')
INSERT ##MyTempTbl values ('put your really, really LONG message (yeah, every guy says his message is the longest...whatever!')
DECLARE @cmd varchar(256)
DECLARE @LargestEventSize int
DECLARE @Width int, @Msg varchar(128)
SELECT @LargestEventSize = Max(Len(MyWords))
FROM ##MyTempTbl
SET @cmd = 'SELECT Cast(MyWords AS varchar(' +
CONVERT(varchar(5), @LargestEventSize) +
')) FROM ##MyTempTbl order by SeqNo'
SET @Width = @LargestEventSize + 1
SET @Msg = 'Here is the junk you asked about' + CHAR(13) + '----------------------------'
EXECUTE Master.dbo.xp_sendmail
'YoMama@WhoKnows.com',
@query = @cmd,
@no_header= 'TRUE',
@width = @Width,
@dbuse = 'MyDB',
@subject='none of your darn business',
@message= @Msg
DROP TABLE ##MyTempTbl
The only thing I change to make it fail is the table name, change it from ##MyTempTbl to #MyTempTbl, and it dashes the email hopes of the stored procedure upon the jagged rocks of electronic despair.
Any insight anyone? Or is BOL just full of...well..."stuff"?
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Mar 14, 2006
We have a complicated select query that needs to build a couple temporary work tables that are then used in the final select statement (in an OLEDB Source data flow control). We can click preview and see the resultset, but if we click on the Columns view there are no columns. We can save and close the OLEDB Source control but downstream from it there are messages saying that there are no input columns. The T-SQL looks something like this (abbreviated):
SELECT fieldlist INTO #temp1 FROM table
SELECT fieldlist INTO #temp2 FROM table
SELECT fieldlist FROM table INNER JOIN #temp1 INNER JOIN #temp2
DROP TABLE #temp1; DROP TABLE #temp2
Has anyone been able to use temp tables in a source SQL statement in a data flow? Are we doing something wrong or incomplete?
Thanks, Gordy
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Jul 20, 2005
Can anyone tell me or post a link that says how many global temptables can exist SQL Server 2000? Also, is there a limit to thenumber of local temp tables that can exist?Thanks,Billy
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Jun 26, 2015
I have to combine data from DB2 and SQL server and do some manipuation. I wanted to do union all and put in temp table for further manipulation. I created a temp table in control flow,Â
CREATE TABLE ##SiteTemp
  (
   LEVEL2 VARCHAR(20),
   LEVEL3  VARCHAR(25)
Then I was trying to use that temp table for destination but I can do see that in destination. I have to automate the package and do that everyday. I read some blogs but did not understand how they did it. I did set retainsameconnection to true. I did find this thread but i did not understand how it was done. URL....
I have two OBL DB sources, Then I have Union ALL and then OLE Destination in data flow.I have the temp table code in Execute sql task.
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Aug 8, 2002
Is anyone using OLEDB instead of ODBC? If so why did you choose to use OLEDB vs ODBC? Our application is written in VB and we have a developer that believes switching to OLEDB from ODBC would be beneficial to us. Please give any information that you have! Thanks.
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Jan 13, 2004
I am working on a large ASP application(s) which uses SQL Server 2K on the back end, ADO 2.7 for Data Access. The current connection strings are setup to use older ODBC drivers. I wanted to change them to OLEDB for performance gains and better support in the future.
The problem encountered is that once the driver is changed the pages become riddled with errors. There are many piece of ADO code that are supported using the new driver. Many are cursor issues or code dealing with identity columns.
Has anyone else gone through this process?
Is there a comprehensive listing of those methods that are not compliant between these two drivers?
Any input would be appreciated....Thanks
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Feb 6, 2007
I want to know the difference between SQL ODBC and SQL OLEDB.
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Feb 6, 2007
What are ODBC and OLEDB
1)libraries or
2)standards
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Jan 12, 1999
We are trying to extract data from DB2 on an as400 machine. Can we simply use SQL statements to extract the proper data that we need from as400 using the SQL Server 7.0 functionality? How do we do that?
We think this needs to be done via DTS(Data Transformation Service).
Thanks in advance.
Shaikh & Sande.
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Jan 5, 2007
Hi,
I am trying to establish a connection to an Oracle database using the following code in a script task:
Dim oOleDbConnection As OleDbConnection
Dim sConnString As String = _
"Provider=OraOLEDB.Oracle;" & _
"Data Source=DBxxx;" & _
"User ID=Userxxx;" & _
"Password=Passxxx"
oOleDbConnection = New OleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()
When I execute the script task, I receive the following error:
The 'OraOLEDB.Oracle' provider is not registered on the local machine.
Am using the correct provider?
I do not know how to resolve the said error.
Here are some facts:
Oracle 8i is installed.
Tnsnames.ora is updated.
I have successfully connected to Oracle SQL *Plus to test the above credentials.
Please help.
Thanks.
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Mar 6, 2006
i notice that in toolbox panel, there are these kind of different dataadapter and dataset, what is difference between them, and under which situation we use which one?
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Oct 25, 2007
I am on an XP Pro 32-bit laptop, running SQL Server 2005 Developer Edition. I want to import an Excel spreadsheet into one of my databases using (formerly known as) DTS. The Excel spreadsheet was created in 2003 (I have Office 2007 installed on this laptop). Whenever I try and do any OleDb import, I get the error:
TITLE: SQL Server Import and Export Wizard
------------------------------
The operation could not be completed.
------------------------------
ADDITIONAL INFORMATION:
The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine. (System.Data)
------------------------------
BUTTONS:
OK
------------------------------
I cannot install/reinstall MDAC because I have the latest version. What else can I try?
As additional information, I also get the error when trying to import anything into or export anything out of Access 2007. I'm pretty sure MDAC is awful, but I still need OleDb providers for much of the work I am doing.
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Jul 20, 2005
I have an application that I am working on that uses some small temptables. I am considering moving them to Table Variables - Would thisbe a performance enhancement?Some background information: The system I am working on has numeroustables but for this exercise there are only three that really matter.Claim, Transaction and Parties.A Claim can have 0 or more transactions.A Claim can have 1 or more parties.A Transaction can have 1 or more parties.A party can have 1 or more claim.A party can have 1 or more transactions. Parties are really many tomany back to Claim and transaction tables.I have three stored procsinsertClaiminsertTransactioninsertPartiesFrom an xml point of view the data looks like this<claim><parties><info />insertClaim takes 3 sets of paramters - All the claim levelinformation (as individual parameters), All the parties on a claim (asone xml parameter), All the transactions on a claim(As one xmlparameter with Parties as part of the xml)insertClaim calls insertParties and passes in the parties xml -insertParties returns a recordset of the newly inserted records.insertClaim then uses that table to join the claim to the parties. Itthen calls insertTransaction and passes the transaction xml into thatsproc.insertTransaciton then inserts the transactions in the xml, and alsocalls insertParties, passing in the XML snippet
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Jan 6, 2004
Hello,
I have a SQL Server instance on my local computer and an Oracle
Database on a remote server. I want to run queries from tables
within both databases and am using linked servers to accomplish
this.
I configure my linked server in SQL Server using the Microsoft
OLE DB Provider for Oracle and can run queries using sql server
tables and oracle tables. However, even the simplest queries
take more than 10 minutes to run.
I have the Oracle 9 Client Installed and MDAC 2.7. I configured
my registry settings to match oracle 9's settings.
However nothing i do improves the performance of the queries
through the Microsoft OLEDB Provider for Oracle.
When I use MS Access, or use an ASP page with the following
string:
Set objConn = Server.CreateObject("ADODB.Connection")
objConn.Open "dsn=Oberon;uid=mfs;pwd=mfs;"
I implement the ODBC driver that I configured in my system DSN
and both run the same queries very fast. The data comes back
without a problem.
So i believe I have narrowed down my problem to the OLEDB
Provider. However, SQL Server does not give me a choice to use
the ORACLE native ODBC Provider.
So then I tried using Pass-Through Queries and this worked alot
faster in SQL Server...I am completely confused as to whats
going on.
Linked Server Query that takes over 10 minutes:
SELECT * FROM OBERON..LOGS.DATA_PHOTO ldp where Machine=301 AND C3='I051097';
Pass-Through Query that works faster:
select * from Openquery(OBERON, 'SELECT * FROM LOGS.DATA_PHOTO ldp where MACHINE=301 AND C3=''I051097''')
From researching pass through queries, my understanding is that
it actually uses ODBC to give the whole query to the remote
database where the query is then run and the results are passed
back as a table, thats why you say select * from (query)...however if my understanding is correct, then you cant combine tables in different databases very easily. And will it work with .asp and .aspx pages?
Anybody have any insight as to whats going on?
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Jan 10, 2008
I have the following query for my site which was functioning great using the OLEDB driver. Unfortunately, my client's web host forced us to use ODBC and it is no longer working Any suggestions for what I should do?
Here is the query:
SELECT t.*
FROM (SELECT TOP 10 itemnum, itemnum FROM (
SELECT TOP 100 itemnum, itemnum
FROM(CatView)
WHERE [CATALOG PAGE] LIKE 'SM%'
ORDER BY itemnum ASC) AS foo
ORDER BY itemnum DESC) AS bar INNER JOIN CatView AS t ON bar.itemnum = t.itemnum
ORDER BY bar.itemnum;
Here is the error i'm now receiving:
ERROR [HY000] [Microsoft][ODBC Microsoft Access Driver] The specified field 'itemnum' could refer to more than one table listed in the FROM clause of your SQL statement.
I know it was working great before, so i'm not sure what to do.
Michael
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Mar 12, 2008
We are experiencing failures when accessing a datatype="Attachments" field in a query in an MS Access 2007 database using ACE ODBC or OLEDB drivers.
We are using an MS Access 2007 database
ACE ODBC/OLEDB drivers installed (i.e. Office 2007, which installs these drivers)
DB contains a table with a field of type "Attachments" (which is new in MS Access 2007)
DB contains a query that selects the fields of the above table
Using ACE ODBC or ACE OLEDB drivers to display the table works fine. The "Attachments" field is displayed as the file name of the attachment(s).
However, using either ACE ODBC or ACE OLEDB to display the query (i.e. NOT the table) results in either incorrect results or unexpected failures of the ODBC/OLEDB drivers.
Error using ODBC (using "ODBC Test"):
=============================
select * from Query1 does not give an error, but displays a "1" for the Attachment field.
select Attachments from Query1 gives the following error:
stmt: szSqlState = "HY000", *pfNativeError = -3087, *pcbErrorMsg = 97,
*ColumnNumber = -2, *RowNumber = -2
MessageText = "[Microsoft][ODBC Microsoft Access Driver] Reserved error (|);
there is no message for this error."
Error using OLEDB (using "RowSetViewer"):
================================
select * from Query1 gives the following error:
Interface: Unknown
Result: 0x0004001 = E_NOTIMPL
FormatMessage: €œNot implemented
File: F:DepotSQLVaultmdac28sdkSamplesoledb
owsetviewerSDKobji386CRowset.cpp
Line: 616
select Attachments from Query1 gives the following error:
Interface: IID_ICommand
Result: 0x0004005 = E_FAIL
IErrorInfo: [0x0000f3f1] €œUnspecified error€?
File: F:DepotSQLVaultmdac28sdkSamplesoledb
owsetviewerSDKobji386CCommand.cpp
Line: 439
If it would help to analyze the problem, I have a folder containing all pertinent files (bare-bone database, tools, instructions) to reproduce this. I could attach it as a ZIP file, if requested.
Thanks,
Joe
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Jan 24, 2008
I'm new to my company, although not new to SQL 2005 and I found something interesting. I don't have an ERD yet, and so I was asking a co-worker what table some data was in, they told me a table that is NOT in SQL Server 2005's list of tables, views or synonyms.
I thought that was strange, and so I searched over and over again and still I couldn't find it. Then I did a select statement the table that Access thinks exists and SQL Server does not show and to my shock, the select statement pulled in data!
So how did this happen? How can I find the object in SSMS folder listing of tables/views or whatever and what am I overlooking?
Thanks,
Keith
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Feb 22, 2008
I have 3 Checkbox list panels that query the DB for the items. Panel nº 2 and 3 need to know selection on panel nº 1. Panels have multiple item selection. Multiple users may use this at the same time and I wanted to have a full separation between the application and the DB. The ASP.net application always uses Stored Procedures to access the DB. Whats the best course of action? Using a permanent 'temp' table on the SQL server? Accomplish everything on the client side?
[Web application being built on ASP.net 3.5 (IIS7) connected to SQL Server 2005)
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Jan 15, 2004
Hi,
I would like to join two tables: one on a local server which I have admin access to and another server which I only have read access. The local table is very small, but the remote table is very large.
If I look at Query Analyzer's execution plan, it appears that the join will be done locally (i.e. the entire table is transferred from the remote server and then joined to my local table). Is there a way to create a temp table using linked servers, transfer my small local table to the remote server and then perform the join on the remote server? In the past, I have been able to use openquery to restrict the data to a small subset that is transferred but the local table is a little too large for that.
I appreciate any advice / guidance anyone can offer me!
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Jan 23, 2008
Hi!
What is the difference in performance if I use a Temp-table or a local-table variable in a storedprocedure?
Why?
//Daniel
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Mar 17, 2008
hello guys,
I have 10 tables, table1, table2, table3, table4.......table10. all these tables have different structure.
From each of these tables I want extract data and dump into flat file csv.
So i have OLEDB source and FlatFile Destination.
If i write seperate data flow task for each of the tables, then there is no issue.
But i want to use a single data flow task for all these tables. So for this, i use a variable @SQLStr . And i dynamically set the value of this variable to select * from table1, select * from table2.........selct * from table10.
So in the OLEDB source I select Data Access Mode as : SQL Command from variable. And I use @SQLStr for this varible.
For Destination, i dynamically generate the flat file for each of the table.
But this doesnt work, i get validation errors.
So, first can i use a single data flow task to dynamically change the source(different source tables) and destination. If so, what i am missing in the above process?
any help appriciated.
Thanks
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Nov 3, 2000
I am attempting to execute a stored procedure as the sql query for a data transformation from sql into an excel file. The stored procedure I am calling uses temp tables (#tempT1, #tempT2, etc.) to gather results from various calculations. When I try to execute this sp, I get
'Error Source: Microsoft OLE DB Provider for SQL Server
Error Description: Invalid Object name "#tempT1"'
Is there a way to make a DTS package call a stored procedure that uses temp tables?
Thanks.
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Jun 12, 2002
Hi,
I want to check to see if a temporary table exists before I try creating one but I can't seem to find which sys table or schema collection I check. Any ideas?
Seoras
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Jun 16, 2004
I have a stored proc that creates a temporary table, then calls several other stored procs to insert data.
CREATE PROCEDURE usp_CreateTakeoff
@iEstimate int,
AS
CREATE TABLE ##Temp_Takeoff
(
Field1 ......
Field2 ......
)
-- Add Structural data
usp_AddStructural @iEstimateID, 1, 'Structural'
usp_AddForming @iEstimateID, 2, 'Forming'
...
...
...
GO
Now, a couple of problems, after the table is created and populated, I cannot find it in my list of tables, even after "refreshing".
I checked to ensure that it exists using the query analyzer and it does so I know the table is being created.
Also, I cannot see the table using crystal reports, connecting etc...... Can I not access a temporary table from 3rd party applications? I have crystal reports 7.0 professional.
Any ideas?
Mike B
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Dec 14, 2004
Hey,
I am in the process of modifying some stored procedures that currently do not use temp tables. For this modification I am required to make the stored procedures use temp tables. There are several UDF's within this stored procedure that will need to use the temp tables, and this is where in lies the problem. Does anyone know of a work around that would allow UDF's to use temp tables, or does anyone know of alternate methods instead of temp tables that wouldn't involve too much change?
Thanks
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Apr 7, 2006
Hi,
I have a called stored procedure which creates a bunch of temporary tables, inserts data into them, indexes the tables and then returns to the main calling SP. In the main stored procedure I then do SELECTs from the temporary tables. My problem is I keep getting
invalid object errors on the temporary tables:
Invalid object name '#temp_table1'
The stored procedure is in a test environment. In the SELECT I tried a prefix of database owner (my logon) as well as "dbo." but still get the error. Any suggestions as to what I am doing wrong would be much appreciated.
Thanks,
Jeff
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Sep 4, 2007
hi All,
I am using a temp table creating it as
create table #process
(
tons of coomuns in here
)
then
insert into #process(collumns)
select from peon
where etc....
Can i use the same temp table definition , but insert into another tempTable.Does alias help me accomplish this task.
Thanks for your input
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Dec 11, 2007
In these two tables im just to bring the data back where the two DesignID's dont match. Im gettin an error
Server: Msg 107, Level 16, State 3, Line 1
The column prefix '#ttTopSellers' does not match with a table name or alias name used in the query.
Declare @CustomerID as VARCHAR(25)
Set @CustomerID = 'DELCOZ01-10'
/*Figure the designs that stores carry*/
Select Design.Description, Item.DesignID,
CustomerClassificationID, CustomerID, Region.[ID] as RegionID, Region.Name
Into #ttDesign
From Mas.dbo.Item Item
Inner Join MAS.dbo.Style Style
on Item.StyleID = Style.[ID]
Inner Join MAS.dbo.Line Line
on Style.LineID = Line.[ID]
Inner Join MAS.dbo.Design Design
on Item.DesignID = Design.[ID]
Inner Join Mas.dbo.DesignRegionIndex DRI
on Design.[ID] = DRI.DesignID
Inner Join MAS.dbo.Region Region
on DRI.RegionID = Region.[ID]
Inner Join MAS.dbo.CustomerClassificationRegionIndex CRI
on Region.[ID] = CRI.RegionID
Inner Join MAS.dbo.CustomerClassification CC
on CRI.CustomerClassificationID = CC.[ID]
Where @CustomerID = CustomerID
Group By Design.Description, Item.DesignID,
CustomerClassificationID, CustomerID, Region.[ID], Region.Name
/*This finds the top retail sales globally*/
Select Top 10 Sum(Sales) as Sales, DesignID, Design.[Description]
Into #ttTopSellers
From Reporting.dbo.RetailSales_ByStore_ByCustomer_ByDay_ByItem DI
Inner Join Mas.dbo.Item Item
on DI.ItemNumber = Item.ItemNumber
Inner Join MAS.dbo.Style Style
on Item.StyleID = Style.[ID]
Inner Join MAS.dbo.Line Line
on Style.LineID = Line.[ID]
Inner Join MAS.dbo.Design Design
on Item.DesignID = Design.[ID]
Where [Date] >= Month(getdate())-12
and DesignID <> 0
Group By DesignID, Design.[Description]
Order by Sum(Sales) Desc
Select *
From #ttDesign
Where #ttDesign.DesignID <> #ttTopSellers.DesignID
--Drop Table #ttDesign
--Drop Table #ttTopSellers
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Jul 20, 2005
Why cant I use the same temptable name i a stored procedure after i have droped it?I use the Pubs database for the test case.CREATE PROCEDURE spFulltUttrekk ASSELECT *INTO #tempFROM JobsSELECT *FROM #tempDROP TABLE #tempSELECT *INTO #tempFROM EmployeeSELECT *FROM #temp
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Nov 15, 2007
I am having problem with my temp table.
I cannot get the syntax correct.
I need to do the following, If @mybit & br > 0 then
insert childid 'condidtion case when br & @mybit > then 0'
into the temp table.
CREATE TABLE #tmp_table(
childid integer null
)
IF @mybit & br > 0 THEN
INSERT INTO #tmp_table
SELECT c.childid
VALUES (childid,
CASE WHEN br & @mybit > 0 THEN 1 ELSE 0
END)
FROM
child c
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Jul 23, 2005
I have a stored procedure which contains a temp table called #NamesThis has n rows of values which are peoples names (they are varchars)i.e#NamesRickRobFrankI have a table called tblPeople.tblPeopleid Name Telephone1 Ric 012334213452 Robert 0321120931233 Paul 123 123 123 123 I want to find all the people in tblPeople whose names are like those in the temp table #NamesHow do I do this?
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Apr 12, 2006
Please tell me there's something I haven't set. I've done several tests now. If your final return in a stored proc is from a temp table (ala #mytable ) the system cannot read the schema - for that matter, it won't run at all, complaining that the object #mytable doesn't exists.
It can't possible be that temp tables aren't allowed in procs used by SQLDatasource - please tell me what I am doing wrong.
This proc, when fed to a sqldatasource, fails in the designer with #temp does not exists.
CREATE PROCEDURE dbo.repTest_TempASBEGIN
CREATE TABLE #Temp( [iTestID] uniqueidentifier, [bTest] [bit], [cTest] [varchar] )
INSERT INTO #TempSELECT *FROM tTest
SELECT *FROM #Temp
END
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