Temp Tables In SQL Server 2005

Mar 3, 2007

Could anyone describe the pitfalls and best practices with temp tables in SQL Server 2005 for me?
Locking, concurrency issues etc

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A Curious Error Message, Local Temp Vs. Global Temp Tables?!?!?

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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Global Temp Tables In SQL Server

Oct 5, 2006

Hi!

I have a stored proc that creates a global temp table. How can I have multiple users select records from and insert records in that table without overwriting and/or deleting data?

Thanks so much for your help!

-Parul

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Temp Tables Vs Temp Variables

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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Working With SQL Server Temp Tables In Stored Procs

Nov 18, 2005

I am trying to create a SQL data adapter via the wizard, however, I get
the error "Invalid object name #ords" because the stored procedure uses
a temp table. Anyway around this? Thanks.

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SQL Server 2008 :: Service Broker And Temp Tables

Feb 12, 2015

Let's say that I have a stored proc that is assigned to a service broker queue and is constantly running while it waits for messages in said queue. When a message comes in on the queue, the stored proc creates a table variable based off of the contents of the message and performs various operations with the data. Since the stored proc is constantly running, do the contents of this table variable ever truly get emptied? Should I be deleting the contents of the table variable at the end of the operation to ensure that stale data doesn't persist?

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SQL Server 2008 :: Temp Tables Persisting In TembDB

Apr 30, 2015

I've recently started a new position and our production box. Contains a procedure that uses 30 + temp tables. I'm currently not in a position to change this as it's production and I would have to be granted a window to re-design.

However the tempDb is showing some strange activity.

If a table is created #CarrierService (CarrierServiceID,DeliveryZoneID,CollectionZoneID) for example

Once the procedure is called It will appear in the tempDB with the session info appended as expected

#CarrierService________________________________________________________2C78E45A

However once the session has ended the above table will get dropped and a new one created

#2C78E45A, I now have 7000 of these different Tables in the TempDB

When I Interrogate this using

SELECT o.name, o.create_date,o.modify_date , c.Name,C.Column_Id
FROM tempdb.sys.Objects o
Inner join tempdb.Sys.Columns c
ON o.object_id =c.Object_ID
WHERE o.type ='U'

I get the Following results

name create_date modify_date object_id name
#2C78E45A26/04/2015 18:0930/04/2015 14:55746120282CarrierServiceId
#2C78E45A26/04/2015 18:0930/04/2015 14:55746120282CollectionZoneId
#2C78E45A26/04/2015 18:0930/04/2015 14:55746120282DeliveryZoneId

Notice How It's getting Modified today.

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SQL Server 2008 :: Temp DB Size Values From Different Tables

May 25, 2015

For finding size values of temp database:

select * from sys.master_files -
size column value here is 1024 for .mdf,size here for .ldf is 64
select * from tempdb.sys.database_files -
size column value here is 3576 for .mdf,size here for .ldf is 224

Why is there a difference and not the same. size columns in the above 2 tables for temp db's do they represent different values ?

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SQL Server 2008 :: How Temp Tables Associated To Deferred Recompilation

May 25, 2015

1) "Deferred compile" recompile event occurs because of deferred name resolution. In other words, an object referred to in the statement does not exist at compile time. Later, when the object does exist, it requires a recompile of the statement so that it can create an optimal execution plan. One example of when a deferred compile will occur is if a temporary table is used in a batch and does not exist when the first statements in the batch are compiled.

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SQL Server 2012 :: Clearing Contents Of Temp Tables

Jun 6, 2015

I am just learning about temp temps using Iteration, how do I clear the contents of the #temp table because when I re-run the query I get the following error:

Msg 2714, Level 16, State 6, Line 6

There is already an object named '#mytemp2' in the database.

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SQL Server 2008 :: Using EXEC Functions And Temp Tables?

Jul 14, 2015

here's an example of what I am trying to do.

--Exec Database.Employees
--Use Database
--Go
--Create PROCEDURE AEM.TempTable
--AS
--BEGIN
--Select * into #emptemp From Database.Employees
--End
--Select * From #emptemp

Is something like this possible? I can get the EXEC to run the "Select * into #emptemp From Database.Employees" statement, but when I try to use the temp table it doesnt see it.

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SQL Server 2008 :: Turning Complex Query Into Temp Tables

Mar 5, 2015

do you have a general rule of thumb for breaking a complex query into temp tables? For someone who is not a sql specialist, a query with more than a few table joins can be complex. So a query with 10+ table joins can be overwhelming for someone who is not a sql specialist.

One strategy is to break a problem into pieces so to speak by grouping together closely related tables into temp tables and then joining those temp tables together. This simplifies complex SQL and although not as performant as one big query it's much easier to understand. So do you have a general rule of thumb as far as a threshold for the number of joins you include in a query before you break the query into temp tables?

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Temp. Tables / Variables / Process Keyed Tables ?

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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DTS - SP And Temp Tables

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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Temp Tables

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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##Temp Tables

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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Temp Tables And UDF's

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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Temp Tables

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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Temp Tables

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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Help With These Temp Tables

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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#Temp Tables

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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Temp Tables

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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SQL, Temp Tables And The Like Statement

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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No Temp Tables In SQLDatasource?????

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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Temp Tables And Performance

Mar 17, 2001

I have been researching some performance problems in a very large
application and I have a couple of questions about temp tables. (SQL 7.0
SP2)

I have one large procedure that I have been using as a test case.
Originally this procedure was a cursor with lots of processing steps
involving writing to, reading from and deleting in temp tables inside the
cursor. I remember reading that temp tables inside a cursor were a
potential performance problem, so I rewrote the procedure, replacing the
cursor with a While Loop.

Doing this showed no increase in performance. Since Profiler was showing .5
second duration times on statements in the procedure accessing the temp
tables I tested some more. I moved all the create statements to the top of
the procedure, as I know these statements after processing steps can cause
recompiles to happen. Still no performance increase.

Finally I replaced all the temp tables with actual tables, just to see what
would happen. With no other changes the performance increased by more than
500%.

Can someone give me some clues as to what is happening here, because if this
is a symptom of something I don't understand, the potential performance
problems from other places where temp tables are similarly used in the
application are enormous.

Thanks.

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Seeing SQL 7.0 ##temp Tables In Access 97

May 2, 2001

The problem is we need local tables in Access for SubReports (can't use store procedures as record source for this), therefore trying to create temp table and link to Access for each report instance.


When we create the ## type table in tempdb this cannot be linked from Access (cannot be seen via DSN).
The only other option we can find is doing
CREATE TABLE tempdb.dbo.[tablename]
but this requires the user to have admin permissions and therefore be 'dbo' on tempdb and not 'guest'.

Any clues?

Palmy

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Testing For Temp Tables

May 11, 2004

Is there any way to test if a table exists in the temp dB. In a procedure I create table called ##Test but I want to test if it exists before it's created and if it does I want to delete it. (It has to be a ## table because it's in a procedure being called in another procedure depending on an IF statement). The reason I want to do this is that I have multiple users and Occasionally they get the ... There is already an object named '##Test' in the database. error

Many Thanks

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Global Temp Tables

Aug 11, 1998

Hi everyone:

I am creating an sp, in which I check for the existence of a global temp table (using the exists)
statement. If the Exists returns a false, I move on to processing without the temp table. If it
returns a true, I utilize the temp table to do some inserts. I create the temp table when my
application first starts up. The problem that I am facing is that the check for the temp table`s
existence seems to be failing. Is there any other way to check for the existence of a global
temp table??

Any info really appreciated
Thanks
Nisha

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Temp Tables In Dts Package

Jul 18, 2002

Sql 2000

Hi All,

I am creating a dts package which copies data via transform data task from a sql sever connection to an excel spreadsheet connection.
The transform data task uses a query that goes like this.

create table #temp1(CName varchar(10))

Insert #temp1
select CName from tbl1

--tbl1 is in a user DB called SALES

create table #temp2(VName varchar(10))

Insert #temp2
select CName from #temp1


select * from #temp2

--I need the resultset of the last select statement into an excel spreadsheet.
The problem is I can't even create the dts package..it shows up with an error saying that #temp1 is an invalid object....I am guessing that since the default database for the transform data task has been selected as SALES it is trying to locate the the #temp1 or #temp2 table in that DB instead of looking in the TEMPDB....My question is..is there any workaround for this problem.

Sample code welcome!!!!

Any help appreciated !

TIA
Kinnu

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Help With A SQL Query Using Temp Tables

Aug 30, 2004

Hi All,

I have 4 temporary tables that hold criteria selected through a report wizard.
I've created a SQL statement and used the four tables in my WHERE/ AND clauses but the results retuned are not being filtered correctly.

Would somebody be kind enough to help me out please.

To briefly summarise, I have created a SQL statement that returns all rows in my recordset, I now need to implement some additional SQL to filter the recordset using my temporary tables, which contain the filters as follows:

(1) Temp table 1 (##tblTempAssetFilt) is mandatory and will always contain at least one row.
(2) Temp table 2 (##tblTempRepairTypeFilter) is optional and may never contain any rows. If this is the case then I have no reason to filter my resultset against this table.
(3) Temp table 3 (##tblTempRepairFilter) / Temp table 4 (##tblTempRepairElementFilter) are both optional, only one of these tables will contain data at one time. Again, as an optional filter the tables may never contain rows, and thus need to be ignored.

I have the following SQL, can somebody tell me how I would go about filtering the recordset using the temporary tables. The creation of the temporary tables occurs at the beginning so will always exist even when no rows have been inserted.

SELECT *
FROM tblActualWork [ActualWork]
JOIN tblRepair [Repair] ON ActualWork.intRepairID = Repair.intRepairID
JOIN tblRepairElement [RepairElement] ON Repair.intRepairElementID = RepairElement.intRepairElementID
JOIN tblRepairType [RepairType] ON Repair.intRepairTypeID = RepairType.intRepairTypeID
JOIN tblAsset [Asset] ON ActualWork.intAssetID = Asset.intAssetID
WHERE ActualWork.intAssetID IN (Select intAssetID From ##tblTempAssetFilter) AND Repair.intRepairTypeID IN (Select intRepairTypeID From ##tblTempRepairTypeFilter)
AND Repair.intRepairID IN (Select intRepairID From ##tblTempRepairFilter)
AND Repair.intRepairElementID IN (Select intRepairElementID From ##tblTempRepairElementFilter)

Any filtering must be based on the recordset filtered by temp table 1, which is a mandatory filter. Rows will always exist in this temp table.

Please help, not having much joy with this. Many thanks.

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Union 2 Temp Tables

Nov 8, 2007

I have 2 temporary tables from a previous operation, Tab1 and Tab2, with the same dimensions. How do I create a third table Tab3 with the same dimensions containing the the combined rows of the 2 previous tables? TIA!

Tab1
Col1 Col2 Col3
A1 B1 C1
A2 B2 C2

Tab2
Col1 Col2 Col3
X1 Y1 Z1
X2 Y2 Z2
X3 Y3 Z3

After the required sql operation I should have

Tab3
Col1 Col2 Col3
A1 B1 C1
A2 B2 C2
X1 Y1 Z1
X2 Y2 Z2
X3 Y3 Z3

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Update Temp Tables

Aug 19, 2013

how to update a temp table with another temp table for example I have #tempdashboard that has info in it.I also have #tempappscount of which I want to insert the info inside it into #tempdashboard...I believe the column in #tempdashboad is DailyAppsInINT,

I did a query that gave me the number of daily apps created. I was told to create #tempappscount and my query to dump into #tempappsaccount. Then dump the info from #tempappsaccount into #tempdashboard.

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Retrieving From Two Temp Tables

Mar 31, 2014

I have two temporary tables, both contain field 'BranchID'.

First table @TEMPNET returns 10 different BranchIDs, but the second table @TEMPCREDIT returns only 7 of those IDs, so when I run select from both tables 'WHERE N.BranchID = C.BranchID2' the result is blank. If I limit both tables to the IDs that are the same in both sets, it works.

How can I get ALL the results from table1 AND the results from table2 which match table1?

DECLARE @TEMPNET
TABLE
( BranchID int
, NetSales decimal(18,4)
, Cost decimal(18,4)
, SaleMonthNbr int
, SaleMonth varchar(15))

[Code] ....

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