Temp Table Vs. Union: Which Has Better Performance?
Aug 13, 2007
Right now, a client of mine has a T-SQL statement that does the
following:
1) Create a temp table.
2) Populate temp table with data from one table using an INSERT
statement.
3) Populate temp table with data from another table using an INSERT
statement.
4) SELECT from temp table.
Would it be more efficient to simply SELECT from table1 then UNION
table 2? The simply wants to see the result set and does not need to
re-SELECT from the temp table.
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Apr 3, 2008
This may be a dumb question, but I can't seem to get the syntax right. I have two temp tables that have the same columns, I want to do a union on them and store the results in a temp table. Any ideas?
Ie.
select * from #tmpTable1
union
select * from #tmpTable2
into #tmpTable3
Thanks!!!
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Mar 26, 2008
I'm having trouble creating a temp table out of a select statement that uses multipe union alls.
Here's what I have, I'm trying to get the results of this query into a temp table...
select
parent,
(select cst_id from co_customer (nolock) where cst_key = Parent) as cst_id,
(select cst_name_cp from co_customer (nolock) where cst_key = Parent) as cst_name_cp,
(select org_total_assets_ext from dbo.co_organization_ext where org_cst_key_ext = parent) as Parent_Total_assets,
sum(own_assets) as Total_child_own_assets
from
(
Select parent,
Child,
(select org_own_assets_ext from dbo.co_organization_ext where org_cst_key_ext = child) as Own_assets
from
(Select Cst_key as Child,
dbo.return_org_parent(cst_key,0,1) as Parent
from co_customer (nolock)
where cst_type = 'Organization'
and cst_delete_flag = 0
and dbo.return_org_parent(cst_key,0,1) is not null
union all
Select Cst_key as Child,
dbo.return_org_parent(cst_key,0,2) as Parent
from co_customer (nolock)
where cst_type = 'Organization'
and cst_delete_flag = 0
and dbo.return_org_parent(cst_key,0,2) is not null
union all
Select Cst_key as Child,
dbo.return_org_parent(cst_key,0,3) as Parent
from co_customer (nolock)
where cst_type = 'Organization'
and cst_delete_flag = 0
and dbo.return_org_parent(cst_key,0,3) is not null
union all
Select Cst_key as Child,
dbo.return_org_parent(cst_key,0,4) as Parent
from co_customer (nolock)
where cst_type = 'Organization'
and cst_delete_flag = 0
and dbo.return_org_parent(cst_key,0,4) is not null
union all
Select Cst_key as Child,
dbo.return_org_parent(cst_key,0,5) as Parent
from co_customer (nolock)
where cst_type = 'Organization'
and cst_delete_flag = 0
and dbo.return_org_parent(cst_key,0,5) is not null
union all
Select Cst_key as Child,
dbo.return_org_parent(cst_key,0,6) as Parent
from co_customer (nolock)
where cst_type = 'Organization'
and cst_delete_flag = 0
and dbo.return_org_parent(cst_key,0,6) is not null
union all
Select Cst_key as Child,
dbo.return_org_parent(cst_key,0,7) as Parent
from co_customer (nolock)
where cst_type = 'Organization'
and cst_delete_flag = 0
and dbo.return_org_parent(cst_key,0,7) is not null )as c
) as d
group by parent
having sum(own_assets) <> (select org_total_assets_ext from dbo.co_organization_ext where org_cst_key_ext = parent)
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May 8, 2015
I have a performance issue with one of the views when I join the view with a temp table
I have 2 Views - View1 and View2.
There is a third view - view_UNION where the
view_UNION =
SELECT * FROM View1
UNION ALL
SELECT * FROM View2
If I have a query like -
Select view_UNION.* FROM
view_UNION INNER JOIN #TMP ON #TMP.ID = view_UNION.ID
the execution is too slow.
But if I execute the views separately, I get good performance.
How to improve the performance of the view_Union
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Jul 21, 2015
I have the following UNION ALL query with SELECT INTO @tblData temp table. I would like to confirm if my query is correct.
In my first SELECT statement, I have INSERT INTO @tblData.
Do I need another INSERT INTO @tblData again in my second SELECT statement after UNION ALL?
DECLARE @BeginDate as Datetime
DECLARE @EndDate as Datetime
SET @BeginDate = '7/1/2015'
SET @EndDate = '7/13/2015'
DECLARE @tblData table
[Code] ....
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Jun 12, 2014
SQL Server 2008 r2...
I have a query which does 3 selects and Union ALLs each to get a final result set. The performance is unacceptable - takes around a minute to run. If I remove the Union All so that the result sets are returned individually it returns all 3 from the query in around 6 seconds (acceptable performance).
Any way to join the result sets together without using Union All.
Each result set has exactly the same structure returned...
Query below [for reference]...
WITH cte AS (
SELECT A.[PoleID], ISNULL(B.[IsSpanClear], 0) AS [IsSpanClear], B.[SurveyDate], ROW_NUMBER() OVER (PARTITION BY A.[PoleID] ORDER BY B.[SurveyDate] DESC) rownum
FROM[UT_Pole] A
LEFT OUTER JOIN [UT_Surveyed_Pole] B ON A.[PoleID] = B.[PoleID]
[Code] .....
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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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Feb 11, 2004
I need to know what is the best performance for needing to do calculations for a particular column. I want to do something like:
Select IID
, ItemNo
, StdRun
, ActRun
, dbo.fnCalc(OutCount)
From myTable
The function is basically a set of Case Statements and various calculations dependant upon the Case.
Is this the best (performance wise) way to do it or should I dump the needed info in a Temp Table and do the calcs on it and then tie the select statement to the table.
I've seen both approaches done, but they both seem to be a different way of getting to the same conclusion. I'm just wondering which puts the lightest load on the server.
Thanks,
Tim
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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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Oct 4, 2007
Hello,
I'm using SQL2005, SP2
I have multiple temp tables with the same column structure that I would combine into into a single temp table using Unions.
Is this possible?
Example:
Select * From #temp1
Union All
Select * From #temp2
Union All
Select * From #temp3
Into #Temp4
I thought I would ask while I continue to research this in case someone came back with the solution before I was able to track it down elsewhere.
Thanks!
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Nov 20, 2007
Hi,
I have follwing union query. I want to put this all in a temp table.
select Store_Id,batchnumber
From
Adjustments where updatedDt between '10/30/2007' and '11/20/2007' and Store_id in(8637 ,8641)
group by Store_Id, batchnumber
Union
select DestinationId,b.batchNumber
from
batch b
inner join Carton C on C.Carton_Id = b.General_ID
inner join Document d on d.Document_Id = c.Document_Id
where b.BatchType = 'Warehouse' and b.TranTable = 'Carton'
and (d.DestinationId in (8637 ,8641) ) and c.UpdatedDt Between '10/30/2007' and '11/20/2007'
Union
select d.DestinationId,b.Batchnumber
From
batch b
inner join Document d
on d.Document_Id = b.General_Id
where b.BatchType = 'TransferIn' and b.TranTable = 'Document'
and (d.DestinationId in (8637,8641) ) and d.UpdatedDt Between'10/30/2007' and '11/20/2007'
Union
select d.SourceId,b.batchNumber
From
batch b
inner join Document d
on d.Document_Id = b.General_Id
where b.BatchType = 'TransferOut' and b.TranTable = 'Document'
and (d.SourceId in (8637,8641) ) and d.UpdatedDt Between'10/30/2007' and '11/20/2007'
order by batchnumber
Kindly advice.
Thanks
Renu
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Feb 18, 2008
I'm trying to summarize costs assigned to active jobs for a manufacturing business. I need to aggregate work in process (WIP) cost that resides in labor-transaction and part-transaction tables based on transaction types, and transaction dates. Some transactions increase the WIP cost of the job while others decrease WIP. The business needs to see how much $$ is tied up in each job as of a particular date -- the calculation is:
ToDate (cost of materials and labor assigned to job)
- ToInv (cost of materials returned to inventory)
- ToSales (cost of materials sold).
I developed this query incrementally and, so far, the #ToDate, #ToInv, and #ToSales temp tables seem to be populating with the correct data. My thought was to combine these three tables with a UNION and then extract the grand totals and here's where I started getting the following error:
------------------------------------------
Incorrect syntax near the keyword 'UNION'.
------------------------------------------
The problem is with the UNIONs going into #myTotal.
I would appreciate any help with this. Also, please let me know if you can suggest a better design for this. Thanks!
Below is a simplified version of my query:
--#ToDate
CREATE TABLE #ToDate (JobNum varchar(14), Cost decimal (16,2)
INSERT INTO #ToDate (JobNum, Cost)
--M&S To Date
SELECT pt.jobnum,
SUM(pt.extcost) AS Cost
FROM parttran pt
JOIN jobhead jh ON pt.jobnum=jh.jobnum
WHERE trantype IN ( <valid trans types> )
AND jh.JobReleased = 1
AND pt.TranDate < '2007-9-30'
GROUP BY pt.jobnum
UNION -- This one works ok.
--L&B To Date
SELECT jh.JobNum,
sum(l.LaborRate*l.LaborHrs) + sum(l.BurdenRate*l.BurdenHrs) AS Cost
FROM LaborDtl l
JOIN JobHead jh ON l.JobNum = jh.JobNum
WHERE jh.JobReleased = 1
AND l.PayrollDate < '2007-9-30'
GROUP BY jh.JobNum
--#ToInv
CREATE TABLE #ToInv (JobNum varchar(14), Cost decimal (16,2)
INSERT INTO #ToInv (JobNum, Cost)
SELECT pt.jobnum,
SUM(pt.extcost) AS ToInv
FROM parttran pt
JOIN jobhead jh ON pt.jobnum=jh.jobnum
WHERE trantype IN (<valid trans types>)
AND jh.JobReleased = 1
AND pt.TranDate < '2007-9-30'
GROUP BY pt.jobnum
--#ToSales
CREATE TABLE #ToSales (JobNum varchar(14), Cost decimal (16,2))
INSERT INTO #ToSales (JobNum, Cost)
SELECT pt.jobnum,
SUM(pt.extcost) AS ToInv
FROM parttran pt
JOIN jobhead jh ON pt.jobnum=jh.jobnum
WHERE trantype IN (<valid trans types>)
AND jh.JobReleased = 1
AND pt.TranDate < '2007-9-30'
GROUP BY pt.jobnum
--#myTotal
CREATE TABLE #myTotal (JobNum varchar(14), Cost decimal (16,2), Source varchar(9))
INSERT INTO #myTotal (JobNum, Cost, Source)
SELECT d.JobNum, SUM(d.Cost) AS Cost FROM #ToDate d GROUP BY d.JobNum ORDER BY d.JobNum
UNION -- Problem**********************
SELECT i.JobNum, SUM(-1*i.Cost) AS Cost FROM #ToInv i GROUP BY i.JobNum ORDER BY i.JobNum
UNION -- Problem**********************
SELECT s.JobNum, SUM(-1*s.Cost) AS Cost FROM #ToSales s GROUP BY s.JobNum ORDER BY s.JobNum
--Select grand total for each job
SELECT JobNum, SUM(Cost) FROM #myTotal ORDER BY JobNum
--Drop temp tables
DROP TABLE #ToDate
DROP TABLE #ToInv
DROP TABLE #ToSales
DROP TABLE #myTotal
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Apr 9, 2014
Below are my temp tables
--DROP TABLE #Base_Resource, #Resource, #Resource_Trans;
SELECT data.*
INTO #Base_Resource
FROM (
SELECT '11A','Samsung' UNION ALL
[Code] ....
I want to loop through the data from #Base_Resource and do the follwing logic.
1. get the Resourcekey from #Base_Resource and insert into #Resource table
2. Get the SCOPE_IDENTITY(),value and insert into to
#Resource_Trans table's column(StringId,value)
I am able to do this using while loop. Is there any way to avoid the while loop to make this work?
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Jun 9, 2004
I have a view which uses UNION of two tables. First table has a 1.5 Million records and the second one has 40,000 records. When I query the view with a column (that is indexed in both tables) in the where clause, it's taking taking 3 Minutes to give the result. The column is of DateTime data Type. Any ideas as to how to improve the query performance ???
TIA
-XLDB
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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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May 16, 2015
I am running A View that INSERTS into #Temp Table - On Only Certain Days the INSERT Speed into #tempDB is so slow.
Attached snapshot that shows after one minute so many few records are inserted - and it dosent happen every day somedays its very fast.
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Jun 24, 1999
I think this is a very simple question, however, I don't know the
answer. What is the difference between a regular Temp table
and a Global Temp table? I need to create a temp table within
an sp that all users will use. I want the table recreated each
time someone accesses the sp, though, because some of the
same info may need to be inserted and I don't want any PK errors.
thanks!!
Toni Eibner
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Feb 11, 2015
i am inserting something into the temp table even without creating it before. But this does not give any compilation error. Only when I want to execute the stored procedure I get the error message that there is an invalid temp table. Should this not result in a compilation error rather during the execution time.?
--create the procedure and insert into the temp table without creating it.
--no compilation error.
CREATE PROC testTemp
AS
BEGIN
INSERT INTO #tmp(dt)
SELECT GETDATE()
END
only on calling the proc does this give an execution error
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Jul 19, 2012
I don't know if it's a local issue but I can't use temp table or table variable in a PP query (so not in a stored procedure).
Environment: W7 enterprise desktop 32 + Office 2012 32 + PowerPivot 2012 32
Simple example:
declare @tTable(col1 int)
insert into @tTable(col1) values (1)
select * from @tTable
Works perfectly in SQL Server Management Studio and the database connection is OK to as I may generate PP table using complex (or simple) queries without difficulty.
But when trying to get this same result in a PP table I get an error, idem when replacing table variable by a temporary table.
Message: OLE DB or ODBC error. .... The current operation was cancelled because another operation the the transaction failed.
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Jul 20, 2005
Hi thereApplication : Access v2K/SQL 2KJest : Using sproc to append records into SQL tableJest sproc :1.Can have more than 1 record - so using ';' to separate each linefrom each other.2.Example of data'HARLEY.I',03004,'A000-AA00',2003-08-29,0,0,7.5,7.5,7.5,7.5,7.0,'Notes','General',1,2,3 ;'HARLEY.I',03004,'A000-AA00',2003-08-29,0,0,7.5,7.5,7.5,7.5,7.0,'Notes','General',1,2,3 ;3.Problem - gets to lineBEGIN TRAN <---------- skipsrestINSERT INTO timesheet.dbo.table14.Checked permissions for table + sproc - okWhat am I doing wrong ?Any comments most helpful......CREATE PROCEDURE [dbo].[procTimesheetInsert_Testing](@TimesheetDetails varchar(5000) = NULL,@RetCode int = NULL OUTPUT,@RetMsg varchar(100) = NULL OUTPUT,@TimesheetID int = NULL OUTPUT)WITH RECOMPILEASSET NOCOUNT ONDECLARE @SQLBase varchar(8000), @SQLBase1 varchar(8000)DECLARE @SQLComplete varchar(8000) ,@SQLComplete1 varchar(8000)DECLARE @TimesheetCount int, @TimesheetCount1 intDECLARE @TS_LastEdit smalldatetimeDECLARE @Last_Editby smalldatetimeDECLARE @User_Confirm bitDECLARE @User_Confirm_Date smalldatetimeDECLARE @DetailCount intDECLARE @Error int/* Validate input parameters. Assume success. */SELECT @RetCode = 1, @RetMsg = ''IF @TimesheetDetails IS NULLSELECT @RetCode = 0,@RetMsg = @RetMsg +'Timesheet line item(s) required.' + CHAR(13) + CHAR(10)/* Create a temp table parse out each Timesheet detail from inputparameter string,count number of detail records and create SQL statement toinsert detail records into the temp table. */CREATE TABLE #tmpTimesheetDetails(RE_Code varchar(50),PR_Code varchar(50),AC_Code varchar(50),WE_Date smalldatetime,SAT REAL DEFAULT 0,SUN REAL DEFAULT 0,MON REAL DEFAULT 0,TUE REAL DEFAULT 0,WED REAL DEFAULT 0,THU REAL DEFAULT 0,FRI REAL DEFAULT 0,Notes varchar(255),General varchar(50),PO_Number REAL,WWL_Number REAL,CN_Number REAL)SELECT @SQLBase ='INSERT INTO#tmpTimesheetDetails(RE_Code,PR_Code,AC_Code,WE_Da te,SAT,SUN,MON,TUE,WED,THU,FRI,Notes,General,PO_Nu mber,WWL_Number,CN_Number)VALUES ( 'SELECT @TimesheetCount=0WHILE LEN( @TimesheetDetails) > 1BEGINSELECT @SQLComplete = @SQLBase + LEFT( @TimesheetDetails,Charindex(';', @TimesheetDetails) -1) + ')'EXEC(@SQLComplete)SELECT @TimesheetCount = @TimesheetCount + 1SELECT @TimesheetDetails = RIGHT( @TimesheetDetails, Len(@TimesheetDetails)-Charindex(';', @TimesheetDetails))ENDIF (SELECT Count(*) FROM #tmpTimesheetDetails) <> @TimesheetCountSELECT @RetCode = 0, @RetMsg = @RetMsg + 'Timesheet Detailscouldn''t be saved.' + CHAR(13) + CHAR(10)-- If validation failed, exit procIF @RetCode = 0RETURN-- If validation ok, continueSELECT @RetMsg = @RetMsg + 'Timesheet Details ok.' + CHAR(13) +CHAR(10)/* RETURN*/-- Start transaction by inserting into Timesheet tableBEGIN TRANINSERT INTO timesheet.dbo.table1select RE_Code,PR_Code,AC_Code,WE_Date,SAT,SUN,MON,TUE,WE D,THU,FRI,Notes,General,PO_Number,WWL_Number,CN_Nu mberFROM #tmpTimesheetDetails-- Check if insert succeeded. If so, get ID.IF @@ROWCOUNT = 1SELECT @TimesheetID = @@IDENTITYELSESELECT @TimesheetID = 0,@RetCode = 0,@RetMsg = 'Insertion of new Timesheet failed.'-- If order is not inserted, rollback and exitIF @RetCode = 0BEGINROLLBACK TRAN-- RETURNEND--RETURNSELECT @Error =@@errorprint ''print "The value of @error is " + convert (varchar, @error)returnGO
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Sep 23, 2015
If on the source I have a new column, the script generated by SqlPackage.exe recreates the table on the background with moving the data into a temp storage. If the table is big, such approach can cause issues.
Example of the script is below: in the source project I added columns [MyColumn_LINE_1] and [MyColumn_LINE_5].
Is there any way I can make it generating an alter statement instead?
BEGIN TRANSACTION;
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
SET XACT_ABORT ON;
CREATE TABLE [dbo].[tmp_ms_xx_MyTable] (
[MyColumn_TYPE_CODE] CHAR (3) NOT NULL,
[Code] ....
The same script is generated regardless the table having data or not, having a clustered or nonclustered PK.
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Oct 25, 2015
I have a temp table like this
CREATE TABLE #Temp
(
ID int,
Source varchar(50),
Date datetime,
CID varchar(50),
Segments int,
Air_Date datetime,
[code]....
Getting Error
Msg 102, Level 15, State 1, Procedure PublishToDestination, Line 34 Incorrect syntax near 'd'.
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Jun 6, 2005
Hello,
I am receiving the following error:
Column name or number of supplied values does not match table definition
I am trying to insert values into a temp table, using values from the table I copied the structure from, like this:
SELECT TOP 1 * INTO #tbl_User_Temp FROM tbl_User
TRUNCATE TABLE #tbl_User_Temp
INSERT INTO #tbl_User_Temp EXECUTE UserPersist_GetUserByCriteria @Gender = 'Male', @Culture = 'en-GB'
The SP UserPersist_GetByCriteria does a
"SELECT * FROM tbl_User WHERE gender = @Gender AND culture = @Culture",
so why am I receiving this error when both tables have the same
structure?
The error is being reported as coming from UserPersist_GetByCriteria on the "SELECT * FROM tbl_User" line.
Thanks,
Greg.
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Aug 14, 2015
Below is my table structure. And I am inserting data from other temp table.
CREATE TABLE #revf (
[Cusip] [VARCHAR](50) NULL, [sponfID] [VARCHAR](max) NULL, GroupSeries [VARCHAR](max) NULL, [tran] [VARCHAR](max) NULL, [AddDate] [VARCHAR](max) NULL, [SetDate] [VARCHAR](max) NULL, [PoolNumber] [VARCHAR](max) NULL, [Aggregate] [VARCHAR](max) NULL, [Price] [VARCHAR](max) NULL, [NetAmount] [VARCHAR](max) NULL,
[Code] ....
Now in a next step I am deleting the records from #revf table. Please see the delete code below
DELETE
FROM #revf
WHERE fi_gnmaid IN (
SELECT DISTINCT r2.fi_gnmaid
FROM #revf r1, #revf r2
[Code] ...
I don't want to create this #rev table so that i can avoid the delete statement. But data should not affect. Can i rewrite the above as below:
SELECT [Cusip], [sponfID], GroupSeries, [tran], [AddDate], [SetDate], [PoolNumber], [Aggregate], [Price], [NetAmount], [Interest],
[Coupon], [TradeDate], [ReversalDate], [Description], [ImportDate], MAX([fi_gnmaid]) AS Fi_GNMAID, accounttype, [IgnoreFlag], [IgnoreReason], IncludeReversals, DatasetID, [DeloitteTaxComments], [ReconciliationID],
[Code] ....
If my above statement is wrong . Where i can improve here? And actually i am getting 4 rows difference.
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Sep 8, 2006
Hello
Is it possible to insert data into a temp table with data returned from a stored procedure joined with data from another table?
insert #MyTempTable
exec [dbo].[MyStoredProcedure] @Par1, @Par2, @Par3
JOIN dbo.OtherTable...
I'm missing something before the JOIN command. The temp table needs to know which fields need be updated.
I just can't figure it out
Many Thanks!
Worf
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Feb 6, 2008
Is there a way to attach a single record to a Select expression without another table?
Here's my case: I am developing a Select query for a report. The report has to show a row for each month, but not all months are necessarily represented in the data, so the result is a report with some of the months missing. Can't have that. To "force" the appearance of all months, I'd like to UNION my Select query to "dummy" records for each month with zeros in the data fields, or something like that. But I'd like to avoid creating a table just to hold the months for the Union. Is there a way to attach records to the result of a Select without those records coming from a table? I'd like to be able to say something like this:
"Do this SELECT. Now, append a row with the following values..."
Thanks!
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Sep 17, 2007
In a table-valued UDF, does the UDF use a table variable or a temp table to form the resultset returned?
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Nov 23, 2007
Hello guys..
Can u plz help me by giving me an idea how i can copy the temp table data to permanent table
Thanks,
sohails
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Oct 5, 2015
I want to insert the data from temp table to other table. Only condition is, it needs to sorted based on tool number and tool date. For example if we have ten records for tool number 1000, it should be order by tool number and then based on tool_dt. Both tables doesn't have any primary keys. Please find below my code. I removed all the unnecessary columns for simple understanding. INSERT INTO tool_summary (tool_nbr, tool_dt) select tool_nbr, tool_dt from #tool order by tool_nbr, tool_dt...But this query is not working as expected. Data is getting shuffled.
Actual Data
Expected Result
1000
1-Aug
1000
1-Feb
1000
1-Jul
1000
[code]....
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Dec 19, 2007
WE have a job that loads data from an Oralce DB into our SQL Server 2000 DB twice a day. The schedule has just changed so that now there is a possibility of having my west coast users impacted when it runs at 5 PM PST and my east coast users impacted when it runs at 7 AM EST. As a workaround, I have developed a DTS package that loads the data into temp tables instead of the real tables. IE. Oracle -> XTable_temp instead of Oracle -> XTable. The load sometimes takes about an hour to an hour and a half to load, so this solution works great, but I want to then lock the table, delete it and rename the temp table to table X. The pseudo code would be:
Begin Transaction
Lock Table XTable
Drop XTable
Alter Table XTable_temp rename to XTable
Release Lock XTable
End Transaction
Create XTable_temp
I see two issues with this solution. 1) I think if I can lock XTable that the lock would be released when the table is dropped and the XTable_temp was being renamed. 2) I can't find a command to rename a table.
Any ideas on a process that might help?
TIA,
A
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Jul 11, 2006
I want to pass the 'inserted' table from a trigger into an SP, I think I need to do this by dumping inserted table into a temporary table and passing the temp table. However, I need to do this for many tables, and don't want to list all the column names for each table/trigger (maintenance nightmare).
Can I dump the 'inserted' table to a temp table WITHOUT specifying the column names?
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Sep 21, 2005
What am I missing?
I have three tables "UNIONED" and I want the this inserted into a table.
INSERT INTO mytable (A, B, C, D, E)
SELECT A, B, C, D, E
FROM
(SELECT * FROM temp_PARTS1 UNION SELECT * FROM temp_PARTS2)
UNION
(SELECT A, B, C, D, E
FROM a_lot_of_parts)
GROUP BY A,B,C,D,E
This part alone works just like I want it:
(SELECT * FROM temp_PARTS1 UNION SELECT * FROM temp_PARTS2)
UNION
(SELECT A, B, C, D, E
FROM a_lot_of_parts)
I just want it inserted inte stated columns in my table.
I've stared so much at this I'm "homeblind", ie I can't see the forest because of all the trees...
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Jul 7, 2004
I want to create a table with a union. Which I have already accomplished. I want to specify the Primary Key in the statement.
Or would I have to use another statement. How would I do that? With an update and what would the syntax be?
Thanks before hand,
itarin
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