SQL Server 2012 :: OVER Clause With Insert Very Slow
Sep 29, 2015
I am using an aggregate with the OVER clause.Running the script is fast less than 1 second but when I say insert into a temp table the execution plan is very different at it take 8 seconds.I have attached the execution plans. Also the Statistics IO, Time messages. I am using SQL Server 2014 with backward compatibility to 2008 R2.
if (select OBJECT_ID('tempdb..#MM')) is not null drop table #MM
CREATE TABLE #MM ([MyTableID] [int], [ParticipantID] [int], [ConferenceID] [nvarchar](50), [Points] [money], [DateCreated] [datetime], [StartPoints] [money], [EndPoints] [money], [LowPoints] [money], [HighPoints] [money])
insert into #MM ([MyTableID], [ParticipantID], [ConferenceID], [Points], [DateCreated], [StartPoints], [EndPoints], [LowPoints], [HighPoints])
selectmm.MyTableID, mm.ParticipantID, mm.ConferenceID, mm.Points, mm.DateCreated,
[code]....
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Aug 16, 2006
Hi,It takes 4 minutes to insert 40 000 records on a SQL Server and 40 secon an other SQL Server. The slower run on windows 2000 terminal serverand the faster on windows 2000. The slower The slower have 2 Go ofram, the faster 512 Mo!!!How to diagnostic what's going wrong on the slower server? I can'tchange the application who do the insertions.
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Dec 26, 2007
Hi everybody !!! I have a problem with database SQL server 2000, and I need anyone help me.
I have PC machine with hardware configuration following:
+ RAM : 512M
+ CPU : 2.4 GHz (intel Pentium 4)
+ System : Microsoft Windows Server 2003 Enterprice Edition , Service Pack 1
(this is call Machine1 )
and other Server machine with hardware configuration the following :
+ RAM : 2G
+ CPU : 3.6 GHz( intel Xeon)
+System : Microsoft Windows Server 2003 Enterprice Edition , Service Pack 2
(use RAID 5)
(this is call Machine2 )
.And SQL Server 2000 is installed in these machine.
I created one table and one script to insert several records into this table. and script for inserting:
declare @count int , @max int
set @count =1
set @max = 5000
WHILE (@count < @max or @count = @max)
BEGIN
insert into TBAT_STOCKEOD(TRDT,SEQNO,COMPID,TRANSTYPE) values('20071219',cast(@count as varchar(5)),'13215','1')
set @count = @count +1
END
I execute this script on Machine1 and Machine2 :
+ Machine1 : spent 3 seconds.
+ Machine2 : spent 30 seconds. I don't understand why Machine2 is slower than Machine1 ( while configuration of Machine2 is better than Machine1's ). I don't know what happen.
I checked resource usages in perfmon when SQL server execute script and result following :
Machine1:
Proccessor used 100%
whereas,Machine2 used physical Disk 100%
Is there the way to configurate SQL server to improve speed writting of hard disk?
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Apr 15, 2008
Hi,
hoping some one can explain the following
I have a large data set with a few million records in it,
in query analyser if i run the following query it will return 260 results in 19 seconds
the Tel_ID is an int the InvoiceNo is an nvarchar
SELECT * FROM Call_Data WHERE Tel_ID=18668 AND InvoiceNo='519657'
if i run this query then i get the same result but in less than a second
SELECT * FROM Call_Data WHERE Tel_ID=18668 AND InvoiceNo=519657
???
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Sep 10, 2014
So we got ServerA.dbA and ServerB.dbB and looks like nobody thought about that MVew. IT works thru linked server now, so surely enough it sucks..
Then even more: we got piece of DW on ServerRep with replcicated pieces of ServerA and ServerB, how it works I asked: "Don't worry man, we took care of everything, go directly to ServerRep for everything..."
And I see that our MView sucks even deeper, practically 0 performance, I think what going on it's still hit that linked server between ServerA.dbA and ServerB.dbB on background.I still can use it on ServerRep WITH NOEXPAND hint, which means it was properly defined...
Can we have that scenario at all? Or we can replicate all Tables on ServerRep and then define/redefine this view directly on replicated server ?
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Jan 12, 2007
Dear Experts,I have a fairly simple query in which adding a where clause slowsthings down by at least a factor of 100. The following is the slowversion of the query-------------------------SELECT * FROM( Select x.event_date From x FULL OUTER JOIN yON x.event_date = y.event_date) innerQWHERE ( innerQ.event_date >= {ts '1980-01-01 00:00:00'} )------------------------Removing the where clause makes the query run quickly. This seemsextremely strange because it seems like SQL Server should simply beable to take the results of innerQ and discard anything with a datethat doesn't match. If I instead split the query into two pieces whereI create a temp table and put innerQ into that and then do the select *WHERE (...) from the temp table things work fine.Any thoughts on what SQL Server might be doing to make things slow andhow I can fix it?Thanks,-Emin
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Jul 15, 2007
Hello,
first of all, some facts of the case:
Table Master Table Dimension
ID Code Price ID Name
1 A44333 5000 1 "Scanner"
2 D442 3000 2 "Notebook"
3 D6644 4000 3 "Banana"
I join both tables on ID and search one time for ID and another time for Name. Looks like
(a)
SELECT AVG(Price) From Master JOIN Dimension ON Master.id = Dimension.id
WHERE master.id=1
AND Code like 'A44'
(b)
SELECT AVG(Price) From Master JOIN Dimension ON Master.id = Dimension.id
WHERE Name = 'Scanner'
AND Code like 'A44'
Why does query (b) take longer than query (a)? Dimension has 12 Rows and
Master has about 24M Rows.
For index I did
Create Index IX_Master_ID on Master(ID)
Create Index IX_Master_Code on Master(Code)
Create Index IX_Dimension_ID on Dimension(ID)
Create Index IX_Dimension_Name on Dimension(Name)
I noticed, that when i leave the Code like 'A44' clause, query (a) and (b) do take same time. I'm really confused. Can someone please help me out?
Thank you
Silas
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Feb 4, 2014
From MS Dynamics NAV 2013 I get a lot of querries that have a where clause like this:
where [Field1] like @p1 and [Field1] < @p2.
Field1 is the only primary key field and clustered index. The query also has a TOP 50 clause.
@p1 is always a "Starts-With"-value (something like N'abc%').
The query plan uses a clustered index seek but the number of reads look more like a clustered index scan.
Depending on the table size I see 1M or more reads for these querries.
If I rebuild the query in SSMS, but replace the paramerters with actual values I only see a few reads.
I was able to reproduce the issue with a temp table. See code below.
Is there a way to make SQL Server use another strategy when using the parameterized query?
SQL Server Version is 11.0.3401.
if object_id('tempdb..#tbl') is not null
drop table #tbl;
create table #tbl
(
[No] nvarchar(20)
,[Description1] nvarchar(250)
[Code] ....
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May 16, 2014
Right now I have to do something like this and it is time consuming every time I have to query a specific table...
SELECT lots_of_columns
FROM table
WHERE (column5 = '1' OR column6 = '1' OR column7 = '1' OR column8 = '1' OR column9 = '1' OR column10 = '1' OR column11 = '1' OR column12 = '1')
AND other_query_critiera_here
Typing out the OR statement gets long, time consuming and prone to errors because that first where line with all the ORs can sometimes have 20+ ORs in it. As some insight, the columns are text columns, sometimes they have data, sometimes they are NULL. Sometimes they have the same data (i.e., column5 and column6 and column12 could both have '1' as values).
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May 5, 2015
I found a code snippet that use the curious following sintax on the creation of View:
CREATE VIEW [dbo].[vw_EvenValues]
AS
SELECT [TestColumn]
FROM [dbo].[TestTable]
WHERE [TestColumn] % 2 = 1
[code]....
IF [TestColumn] on the Select is varchar, then error occurs and say:"Conversion failed when converting for the varchar value 'A001' to data type int"
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May 8, 2015
I would like to be able to combine the functionality of IN and LIKE in a WHERE clause. Although the simple AdventureWorks2012 example below illustrates the concept with 3 search criteria, the real-world example I need to apply the concept to has a couple dozen. This returns 50 rows, but requires multiple OR ... LIKE functions:
SELECT DISTINCT c.Name
FROM Sales.Store c
WHERE c.Name LIKE '% sports %'
OR c.Name LIKE '% exercise %'
OR c.Name LIKE '%toy%'
What I would like to do is something like this, which doesn't work:
SELECT DISTINCT c.Name
FROM Sales.Store c
WHERE c.Name IN(LIKE '% sports %', LIKE '% exercise %', LIKE '%toy%')
I could load up a cursor and loop through it, but the syntax is more cumbersome than the multiple LIKE statements, not to mention most SQL programmers are horrified at the mention of the abominable word 'cursor' for performance reasons.
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May 28, 2015
A while back, a "quirky update" method was proposed for lightning fast running totals based on the three-part MSSQL UPDATE's SET statement and tally tables. However, some claimed this was not 100% absolutely guaranteed behavior.
How does the new OVER clause compare in terms of performance ?
DECLARE @Tbl TABLE
(
pk int not null primary key identity,
N int
)
INSERT INTO @Tbl (N) SELECT TOP 1000 1 FROM syscolumns a CROSS JOIN syscolumns b
SELECT pk, SUM(pk) OVER (ORDER BY pk )
FROM @Tbl
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Jul 2, 2015
I am creating a dynamic query where i am appending a where clause something like -
IF (@CurCaptureDate IS NOT NULL)
SET @where_clause = @where_clause + CHAR(10) + 'AND CD.CaptureDate = ' + @CurCaptureDate
PS - CD.CaptureDate is datetime and @CurCaptureDate is also datetime
but when executing , it gives this error - Msg 241, Level 16, State 1, Line 169 Conversion failed when converting date and/or time from character string.
i am not able to use convert here with these quotes.
i tried this - SET @where_clause = @where_clause + CHAR(10) + 'AND CD.CaptureDate = ' + CONVERT(VARCHAR(25),@CurCaptureDate )
but it makes it to -
AND CD.CaptureDate = Jul 19 2014 12:00AM. I would need the date in quotes.
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Sep 11, 2015
Because of the way in which a specific piece of code is written, I'm bound into using a WHERE clause for a report generation.Each Inspection generates a unique Inspection Number. Any re-inspection created from that inspection is assigned that Inspection Number and appended with ".A", ".B", ".C" and so on.
The problem is this: Each row's Primary Key is the "InspectionId" in "dbo.v_InspectionDetailsReports". I need to return not only the data related to that particular InspectionId, but also the data related to any previous related inspection. For example, if I have a main number of CCS-2012 and three re-inspections, CCS-2012.A, CCS-2012.B and CCS-2012.C, and I report on CCS-2012.B, I need all the data for CCS-2012, CCS-2012.A and CCS-2012.B but NOT CCS-2012.C.
I would prefer to not have to do everything in a WHERE statement, but my hands are a bit tied.
The "SELECT * FROM dbo.v_InspectionDetailsReports WHERE . . ." is already hardcoded (don't ask).
SELECT *
FROM dbo.v_InspectionDetailsReports
WHERE ( RefOnly = 0
OR RefOnly IS NULL
[code]...
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Nov 6, 2014
I'm looking at various methods for deleting duplicate rows. Among the alternatives, one works just fine but gives me results that make me go?.
Consider this script:
declare @t table (a int, b int, c int, d int, e int)
insert into @t (a, b, c, d, e) values
(1, 2, 3, 4, 5),
(3, 4, 2, 3, 4),
(1, 2, 3, 4, 5)
select a,b,c,d,e, rn = row_number() over (
partition by a,b,c,d,e
[Code] ....
The code works -- that is, the duplicate row is deleted. However the output clause returns:
abcdern
123451
So....why? Why does the output clause show that the row with rn=1 was deleted, when the where clause stipulates rn > 1?
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Dec 28, 2014
I have 10k indexes I need to rebuild and each time the script reaches an error it stops all further activity. How can I append 'GO' to the end of each line so it will continue on error messages?
Once I have the syntax I can do a find and replace function in Notepad++
USE [AdventureWorks2014] + char(13) + char(10) + GO
ALTER INDEX [IX_Person] ON [Person].[Person] REBUILD PARTITION = ALL WITH (PAD_INDEX = OFF) + char(13) + char(10) + GO
ALTER INDEX [IX_Emp] ON [HumanResources].[Employee] REBUILD PARTITION = ALL WITH (PAD_INDEX = OFF) + char(13) + char(10) + GO
************** Truncate ***********
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Jul 2, 2015
so async cursor population is supposed to create the cursor and return the cursor id quickly, while the server works on async populating the results. For a keyset-driven cursor, SQL Server stores the key sets in tempdb, which it then uses to fetch data for cursor results. Anyway, this works fine for smaller tables, but I'm finding for large result sets, the async cursor population is very slow and indeed seems to approximate synchronous time. The wait stat I get while it is running (supposedly asynchronously) is TRANSACTION_MUTEX.
Example:
--enable async cursor
exec dbo.sp_configure 'cursor threshold', 0; reconfigure;
declare @cursor int, @stmt nvarchar(max), @scrollopt int, @ccopt int, @rowcount int;
--example of giant result set
set @stmt = 'select * from sys.all_objects o1, sys.all_objects o1';
[code]...
Note that using the SQL "select * from sys.all_objects o1" is much faster than "select * from sys.all_objects o1, sys.all_objects o2". However, if cursor population is async, I'd expect the time to return a cursor id to be similar between the two.
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Feb 22, 2008
Hi All
I decided to change over from Microsoft Access Database file to the New SQLServerCe Compact edition. Although the reading of data from the database is greatly improved, the inserting of the new rows is extremely slow.
I was getting between 60 to 70 rows per sec using OLEDB and an Access Database but now only getting 14 to 27 rows per sec using SQLServerCe.
I have tried the below code changes and nothing seams to increase the speed, any help as I would prefer to use SQLServerCe as the database is much smaller and I€™m use to SQL Commands.
Details:
VB2008 Pro
.NET Frameworks 2.0
SQL Compact Edition V3.5
Encryption = Engine Default
Database Size = 128Mb (But needs to be changes to 999Mbs)
Where Backup_On_Next_Run, OverWriteQuick, CompressAns are Booleans, all other column sizes are nvarchar and size 10 to 30 expect for Full Folder Address size 260
TRY1
Direct Insert Using Data Adapter.
Me.BackupDatabaseTableAdapter1.Insert(Group_Name1, Full_Folder_Address1, File1, File_Size_KB1, Schedule_To_Run1, Backup_Time1, Last_Run1, Result1, Last_Modfied1, Last_Modfied1, Backup_On_Next_Run1, Total_Backup_Times1, Server_File_Number1, Server_Number1, File_Break_Down1, No_Of_Servers1, Full_File_Address1, OverWriteQuick, CompressAns)
14 to 20 rows per second (Was 60 to 70 when using OLEDB Access)
TRY 2
Using Record Sets
Private Sub InsertRecordsIntoSQLServerce(ByVal Group_Name1 As String, ByVal Full_Folder_Address1 As String, ByVal File1 As String, ByVal File_Size_KB1 As String, ByVal Schedule_To_Run1 As String, ByVal Backup_Time1 As String, ByVal Last_Run1 As String, ByVal Result1 As String, ByVal Last_Modfied1 As String, ByVal Latest_Modfied1 As String, ByVal Backup_On_Next_Run1 As Boolean, ByVal Total_Backup_Times1 As String, ByVal Server_File_Number1 As String, ByVal Server_Number1 As String, ByVal File_Break_Down1 As String, ByVal No_Of_Servers1 As String, ByVal Full_File_Address1 As String, ByVal OverWriteQuick As Boolean, ByVal CompressAns As Boolean)
Dim conn As SqlCeConnection = Nothing
Dim CommandText1 As String = "INSERT INTO BackupDatabase (Group_Name, Full_Full_Folder_Adress, File1,File_Size_KB, Schedule_To_Run, Backup_Time, Last_Run, Result, Last_Modfied, Latest_Modfied, Backup_On_Next_Run, Total_Backup_Times, Server_File_Number, Server_Number, File_Break_Down, No_Of_Servers, Full_File_Address, OverWrite, Compressed) VALUES ('" & Group_Name1 & "', '" & Full_Folder_Address1 & "', '" & File1 & "', '" & File_Size_KB1 & "', '" & Schedule_To_Run1 & "', '" & Backup_Time1 & "', '" & Last_Run1 & "', '" & Result1 & "', '" & Last_Modfied1 & "', '" & Latest_Modfied1 & "', '" & CStr(Backup_On_Next_Run1) & "', '" & Total_Backup_Times1 & "', '" & Server_File_Number1 & "', '" & Server_Number1 & "', '" & File_Break_Down1 & "', '" & No_Of_Servers1 & "', '" & Full_File_Address1 & "', '" & CStr(OverWriteQuick) & "', '" & CStr(CompressAns) & "')"
Try
conn = New SqlCeConnection(strConn)
conn.Open()
Dim cmd As SqlCeCommand = conn.CreateCommand()
cmd.CommandText = "SELECT * FROM BackupDatabase"
cmd.ExecuteNonQuery()
Dim rs As SqlCeResultSet = cmd.ExecuteResultSet(ResultSetOptions.Updatable Or ResultSetOptions.Scrollable)
Dim rec As SqlCeUpdatableRecord = rs.CreateRecord()
rec.SetString(1, Group_Name1)
rec.SetString(2, Full_Folder_Address1)
rec.SetString(3, File1)
rec.SetSqlString(4, File_Size_KB1)
rec.SetSqlString(5, Schedule_To_Run1)
rec.SetSqlString(6, Backup_Time1)
rec.SetSqlString(7, Last_Run1)
rec.SetSqlString(8, Result1)
rec.SetSqlString(9, Last_Modfied1)
rec.SetSqlString(10, Latest_Modfied1)
rec.SetSqlBoolean(11, Backup_On_Next_Run1)
rec.SetSqlString(12, Total_Backup_Times1)
rec.SetSqlString(13, Server_File_Number1)
rec.SetSqlString(14, Server_Number1)
rec.SetSqlString(15, File_Break_Down1)
rec.SetSqlString(16, No_Of_Servers1)
rec.SetSqlString(17, Full_File_Address1)
rec.SetSqlBoolean(18, OverWriteQuick)
rec.SetSqlBoolean(19, CompressAns)
rs.Insert(rec)
Catch e As Exception
MessageBox.Show(e.Message)
Finally
conn.Close()
End Try
End Sub
€™20 to 24 rows per sec
TRY 3
Using SQL Commands Direct
Private Sub InsertRecordsIntoSQLServerce(ByVal Group_Name1 As String, ByVal Full_Folder_Address1 As String, ByVal File1 As String, ByVal File_Size_KB1 As String, ByVal Schedule_To_Run1 As String, ByVal Backup_Time1 As String, ByVal Last_Run1 As String, ByVal Result1 As String, ByVal Last_Modfied1 As String, ByVal Latest_Modfied1 As String, ByVal Backup_On_Next_Run1 As Boolean, ByVal Total_Backup_Times1 As String, ByVal Server_File_Number1 As String, ByVal Server_Number1 As String, ByVal File_Break_Down1 As String, ByVal No_Of_Servers1 As String, ByVal Full_File_Address1 As String, ByVal OverWriteQuick As Boolean, ByVal CompressAns As Boolean)
Dim conn As SqlCeConnection = Nothing
Dim CommandText1 As String = "INSERT INTO BackupDatabase (Group_Name, Full_Full_Folder_Adress, File1,File_Size_KB, Schedule_To_Run, Backup_Time, Last_Run, Result, Last_Modfied, Latest_Modfied, Backup_On_Next_Run, Total_Backup_Times, Server_File_Number, Server_Number, File_Break_Down, No_Of_Servers, Full_File_Address, OverWrite, Compressed) VALUES ('" & Group_Name1 & "', '" & Full_Folder_Address1 & "', '" & File1 & "', '" & File_Size_KB1 & "', '" & Schedule_To_Run1 & "', '" & Backup_Time1 & "', '" & Last_Run1 & "', '" & Result1 & "', '" & Last_Modfied1 & "', '" & Latest_Modfied1 & "', '" & CStr(Backup_On_Next_Run1) & "', '" & Total_Backup_Times1 & "', '" & Server_File_Number1 & "', '" & Server_Number1 & "', '" & File_Break_Down1 & "', '" & No_Of_Servers1 & "', '" & Full_File_Address1 & "', '" & CStr(OverWriteQuick) & "', '" & CStr(CompressAns) & "')"
Try
conn = New SqlCeConnection(strConn)
conn.Open()
Dim cmd As SqlCeCommand = conn.CreateCommand()
cmd.CommandText = CommandText1
'cmd.CommandText = "INSERT INTO BackupDatabase (€¦"
cmd.ExecuteNonQuery()
Catch e As Exception
MessageBox.Show(e.Message)
Finally
conn.Close()
End Try
End Sub
€˜ 25 to 30 but mostly holds around 27 rows per sec I
Is this the best you can get or is there a better way. Any help would be greatly appericated
Kind Regards
John Galvin
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Aug 21, 2014
How I am using a CASE statement within a WHERE clause to filter data:
CREATE PROCEDURE dbo.GetSomeStuff
@filter1 varchar(100) = '',
@filter2 varchar(100) = ''
AS
BEGIN
SELECT
[Code] .
What I want, is to be able to pass in a single value to filter the table, or if I pass in (at the moment a blank) for no filter to be applied to the table.
Is this a good way to accomplish that, or is there a better way? Also, down the line I'm probably going to want to have multiple filter items for a single filter, what would be the best way to implement that?
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Jun 4, 2015
the code below works (this is only a quick dumbed down version of the actual code, it might not work 100% for all cases). Is it at all possible to exploit the functions that were added to SSQL since v. 2005 to simplify this code ?
In SSRS, a parameter allows the user to create a list of invoices (from CRM) to be ordered in any of the following ways the user prefers:
'Document Date (most recent date first)'
'Document Number (highest number first)'
'Document Date (most recent first) and Number'
'Document Number (lowest number first)'
The invoices have a (supposedly) sequential identity-generated number. However Accounting may want to set a different date than the creation date on some invoices. So there is no way the invoice numbers will be in the same sequence as the invoice dates.
So I just created the "sorting fields" - they appear as junk in the output dataset (just do not drop them in the SSRS tablix - they have to be part of the SELECT statement to be usable in the ORDER BY clause.
The code is:
DECLARE @ls_OrderBy varchar(80)
--'Document Number (highest number first)'
--'Customer and Document Date (most recent date first)'
--'Customer and Document Number (highest number first)'
--'Document Date (most recent first) and Number'
[code]....
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Jun 8, 2015
I have a two tables each having a uniqueidentifier column person_id
I am trying to a select statement where I want a list of the person_id's in one table that are not in another table.
-- insert into wch_needed those who need checked
insert into #wch_needed (person_id, rendered_by )
select distinct e.person_id, e.rendered_by
from #wch_who o, encounter e
where o.person_id not in (select distinct person_id from #wch_have )
and o.person_id = e.person_id
the where conditional
where o.person_id not in (select distinct person_id from #wch_have )
does not work.
How can I do this?
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Jul 3, 2007
Hi,
I need to pass data from a SQL Server data base to an Access data base. To do this I use the OPENROWSET as followed:
FR
INSERT INTO OPENROWSET('Microsoft.Jet.OLEDB.4.0', 'C:Aux.mdb'; 'Admin'; '',Test) (Id, Name, TypeId) SELECT Id,Name,TypeId
FROM Test
ORDER BY TypeId
FR
On SQL Server 2000 or MSDE the data is transfered as expected, respecting the specified order. But when I run the same clause on a SQL 2005 EE the data is transfered, but the order is not respected.
So my question is if I have to activate an option for the order to be respected or if this is a bug.
Best regards,
Ă‚ngelo Vilela
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Feb 19, 2014
I'm trying to write a query to select various columns from 3 tables. In the where clause I use a set of conditions, but most important condition is that I only want to see all results from the different columns where the ph.ProdHeaderDossierCode contains at least 25 lines of processed hours. I tried this with group by and having, but I constant get error messages on all other columns that I want to see: "is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause". How can I make this so I can see all information I need?
Here is my code so far:
selectph.CalculatedTotalTime,
ph.ProdHeaderDossierCode,
ph.MachGrpCode,
ph.EmpId,
pd.PartCode
fromdbo.T_ProcessedHour ph,
[Code] ....
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Jul 27, 2014
I want to create the following scenario. I have a table that stores employees working on projects and their project hours by week, but now I also need a running total per week for each of those projects. For example take a look below:
EmployeeID, Project, Sunday, Monday, Tuesday,....Saturday, ProjectHours, TotalProjectHoursPerWeek(this is the column I am trying to derive), FiscalWeek
101, ProjectABC, 5,5,5,...5, 20, 40,25
102, ProjectXYZ 4,4,4,....4, 20 ,40,25
103,ProjectQWE, 2,2,2,...2, 8, 32,26
104, ProjectPOP, 6,6,6,...6, 24, 32,26
What I have tried so far:
Correlated Subquery:
SELECT EmployeeID,Project, Sunday, Monday,....Saturday, ProjectHours, SELECT(SUM(ProjectHours) FROM dbo.TableABC ap GROUP BY FiscalWeek),
FROM
dbo.TableABC a
I got this to work one time before, but now I am 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.
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Oct 11, 2014
I can't understand why I get 2 different results on running with a Bracket I get 'NULL' and without a bracket I get the declared variable value which is 'Noname'
Below is Query 1:
Declare @testvar char(20)
Set @testvar = 'noname'
Select @testvar= pub_name
FROM publishers
WHERE pub_id= '999'
Select @testvar
Out put of this query is 'Noname'
BUT when I type the same query in the following manner I get Null-------Please note that the only difference between this query below is I used brackets and Select in the Select@testvar statement
Declare @testvar char(20)
Set @testvar = 'noname'
Select @testvar=(Select pub_name
FROM publishers
WHERE pub_id= '999')
Select @testvar
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Sep 9, 2014
I am writing a stored procedure and have a query where I create a variable from other table
Declare @Sem varchar (12) Null
@Decision varchar(1) Null
Select emplid,name, Semester
Decision1=(select * from tbldecision where reader=1)
Decision2=(select * from tbldecision where reader=2)
Where Semester=@Sem
And Decision1=@Decision
But I am getting error for Decision1 , Decision2. How can I do that.
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Jan 14, 2008
This problem is being seen on SQL 2005 SP2 + cumulative update 4
I am currently successfully using the output clause of an insert statement to return the identity values for inserted rows into a table variable
I now need to add an "instead of insert" trigger to the table that is the subject of the insert.
As soon as I add the "instead of insert" trigger, the output clause on the insert statement does not return any data - although the insert completes successfully. As a result I am not able to obtain the identities of the inserted rows
Note that @@identity would return the correct value in the test repro below - but this is not a viable option as the table in question will be merge replicated and @@identity will return the identity value of a replication metadata table rather than the identity of the row inserted into my_table
Note also that in the test repro, the "instead of insert" trigger actually does nothing apart from the default insert, but the real world trigger has additional code.
To run the repro below - select each of the sections below in turn and execute them
1) Create the table
2) Create the trigger
3) Do the insert - note that table variable contains a row with column value zero - it should contain the @@identity value
4) Drop the trigger
5) Re-run the insert from 3) - note that table variable is now correctly populated with the @@identity value in the row
I need the behaviour to be correct when the trigger is present
Any thoughts would be much appreciated
aero1
/************************************************
1) - Create the table
************************************************/
CREATE TABLE [dbo].[my_table](
[my_table_id] [bigint] IDENTITY(1,1) NOT NULL,
[forename] [varchar](100) NULL,
[surname] [varchar](50) NULL,
CONSTRAINT [pk_my_table] PRIMARY KEY NONCLUSTERED
(
[my_table_id] ASC
)WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF, FILLFACTOR = 70) ON [PRIMARY]
)
GO
/************************************************
2) - Create the trigger
************************************************/
CREATE TRIGGER [dbo].[trig_my_table__instead_insert] ON [dbo].[my_table]
INSTEAD OF INSERT
AS
BEGIN
INSERT INTO my_table
(
forename,
surname)
SELECT
forename,
surname
FROM inserted
END
/************************************************
3) - Do the insert
************************************************/
DECLARE @my_insert TABLE( my_table_id bigint )
declare @forename VARCHAR(100)
declare @surname VARCHAR(50)
set @forename = N'john'
set @surname = N'smith'
INSERT INTO my_table (
forename
, surname
)
OUTPUT inserted.my_table_id INTO @my_insert
VALUES( @forename
, @surname
)
select @@identity -- expect this value in @my_insert table
select * from @my_insert -- OK value without trigger - zero with trigger
/************************************************
4) - Drop the trigger
************************************************/
drop trigger [dbo].[trig_my_table__instead_insert]
go
/************************************************
5) - Re-run insert from 3)
************************************************/
-- @my_insert now contains row expected with identity of inserted row
-- i.e. OK
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Hi,
I have a table with 110 nvarchar (255) columns in the database. I receive the data from the server (array) and them loop through it to insert the data into the database. The problem is it takes more than 3 minutes to insert (or update) (in memory) the 310 records it got from the array. I am reusing the Statement (with parameters). How could I improve the performance?
It's really a small quantity of data, the CPU in the device is 520Mhz... it should be alright!
Can aynone help me please?
Thanks
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Below is the table and trigger.
CREATE TABLE [dbo].[scancode](
[scancode_id] [int] IDENTITY(1,1) NOT NULL,
[scancode] [varchar](50) NOT NULL,
[parent_object] [varchar](150) NOT NULL,
[parent_object_id] [int] NOT NULL,
[Created] [datetime] NOT NULL,
[code].....
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Hello,
I don't know what to do anymore ;o(
I've got 2 servers, with sql server 2000 sp3 and ms windows 2003 server.
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On the first server (P-IV 2 GHz), it takes 700 ms / 1000 insertions
and on the second (2x Xeon 2,6 GHz), it takes 13 s / 1000 insertions...
(insertion is : INSERT INTO TEST (id, msg) VALUES (@id, 'dummy text'))
...
SQL Server was installed exactly in the same way...
what could I do see where the problem is ? With profiler, I see no difference while logging all events....
please help or give ideas
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