I`ve written a pretty complex powerbuilder application and my performance
is fair use stored procedures. Is there any way to force sql server 6.5
to reevaluate the current query plan and if it is bad create a new
query plan.
Hi, im developing an action site and im having proplems with stored procedures
that are causing extreme load on the server.
PLEASE LOOK AT THE CODE AND TELL ME IF U SEE ANYTHING THAT CAUSES LOW PERFORMANCE OR SOME SUGGESTIONS ON HOW TO INCREASE THE PERFORMANCE.
SHOULD I F.E. TAKE THIS LOGIC FROM THE DB AND TRY DOING IT IN c#?
The action-site uses an auto-bid-feature that is causing a load.
Basically when a user makes a bid, i have to loop through all other users that have a bid in
the product and automatically increase a bid untill it matches the highest bid of a user.
F.e. a user bids auto-bid $2000 in a product where another user has a $2100 bid in the product and the current bid is $1200. So the SP loops through the users increases the bid-history untill it mathces the highest bid of a user.
- $1250
- $1300
- $1350
- etc...
This is the SP that loops through the users and calls another function each time to increase the bid in the bid-history.
------------------------------------------
CREATE PROC HaekkaBodIUppbodi
@uID INT
AS
DECLARE @curUpphaed DECIMAL
SELECT @curUpphaed = MAX(upphaed) FROM bodsaga WHERE uppbod_ID = @uID
IF(@curUpphaed IS null)
BEGIN
SET @curUpphaed = 0
END
DECLARE @curCount INT
SELECT @curCount = COUNT(kaupandi_netfang) FROM bod WHERE upphaed >
@curUpphaed AND uppbod_ID = @uID
WHILE(@curCount>0)
BEGIN
-- skilgreinum notanda breytu
DECLARE @notandi NVARCHAR(255)
IF(@curCount<2)
BEGIN
SELECT @notandi = kaupandi_netfang FROM bod WHERE upphaed >
@curUpphaed AND uppbod_ID = @uID
EXEC HaekkaBodAVoru @uID, @notandi
BREAK;
END
-- búum til cursor fyrir alla notendur
-- sem eru með hærri boð en núverandi boð
DECLARE crs CURSOR FAST_FORWARD FOR
SELECT kaupandi_netfang FROM bod WHERE upphaed > @curUpphaed
AND uppbod_ID = @uID
ORDER BY dags
-- opnum cursorinn
OPEN crs
-- sækjum fyrsta notandann inn í @notandi
FETCH NEXT FROM crs
INTO @notandi
DECLARE @returnValue INT
SET @returnValue = 0
DECLARE @tempValue INT
SET @tempValue = 0
-- lúppum í gegnum notendurna
WHILE @@FETCH_STATUS = 0
BEGIN
EXEC HaekkaBodAVoru @uID, @notandi
FETCH NEXT FROM crs
INTO @notandi
END
CLOSE crs
DEALLOCATE crs
-- sækjum hæstu upphæð í boðsögu
SELECT @curUpphaed = MAX(upphaed) FROM bodsaga WHERE uppbod_ID = @uID
SELECT @curCount = COUNT(kaupandi_netfang) FROM bod WHERE upphaed >
@curUpphaed AND uppbod_ID = @uID
END
GO
-------------------------------------------------------------
And here is the SP that increases the bid...
CREATE PROC HaekkaBodAVoru
@uID INT,
@notandi NVARCHAR(255)
AS
-- Hækkun á uppboði
DECLARE @haekkun DECIMAL
SELECT @haekkun = haekkun_upphaed
FROM uppbod WHERE id = @uID
-- Hæsta boð í vöru
DECLARE @haesta_bod DECIMAL
SELECT @haesta_bod = MAX(upphaed) FROM bodsaga
WHERE uppbod_id = @uID
-- Hæsta boð sem notandi vill gera
DECLARE @haesta_bod_notanda DECIMAL
SELECT @haesta_bod_notanda = upphaed FROM
BOD WHERE kaupandi_netfang = @notandi
-- Seinasti notandi sem gerði boð í uppboðinu
DECLARE @seinasti_notandi NVARCHAR(255)
SELECT @seinasti_notandi = notandi FROM
BODSAGA WHERE uppbod_id = @uID
DECLARE @upphaed DECIMAL
SET @upphaed = @haekkun
-- Ef búið að bjóða í vöruna
IF(@haesta_bod IS NOT null)
BEGIN
IF(@haesta_bod = @haesta_bod_notanda)
BEGIN
SET @upphaed = @haesta_bod
END
ELSE
BEGIN
SET @upphaed = @haesta_bod + @haekkun
END
END
-- Ef hæsta boð notanda er sama eða lægra en núverandi verð
-- og notandi var ekki sá síðasta til þess að setja inn boð
IF(@upphaed <= @haesta_bod_notanda)
BEGIN
-- Ef notandi hefur EKKI sett inn þessa upphæð áður...
IF((SELECT COUNT(*) FROM bodsaga WHERE notandi = @notandi AND upphaed = @upphaed)=0
-- Og notandi á EKKI núverandi hæsta boð
AND (SELECT COUNT(*) FROM bodsaga WHERE notandi = @notandi AND upphaed = @haesta_bod)=0)
BEGIN
INSERT INTO bodsaga
VALUES(@uID, @notandi, @upphaed, GETDATE())
RETURN 1
END
END
RETURN 0
GO
Hello folks,I usually use this way to store more procedures inside a single SP:CREATE PROCEDURE usp_MyProc(@usp_mode int)ASIF @usp_mode = 1BEGINENDIF @usp_mode = 2BEGINENDand so on...My question is about performance: I don't know deeply how SP executionruns, is there a performance fall following this way? Do you haveother methods or suggestion instead of this way to avoid having dozensof procedures inside my database (obviously I use this method becauseI have many procedures and I prefer a more compact view andorganization)?TIA, tK
View 3 Replies View RelatedHello Everybody,
I posted this same question couple of times in the news groups but no answers. I have a 2 tables and i am doing a union query using a view. each has 250 rows. The query takes 20 seconds to return the results. no joins or anything. the create view simply looks like this:
create view myview as
select id, name from table1
union
select id,name from table2
Where as if i write a stored procedure like below, it returns the rows in 4 seconds.
create table #mytable
( id int, name varchar(30))
insert into #mytable (id, name) select id, name from table1
insert into #mytable (id, name) select id, name from table2
select id,name from #mytable.
I prefer doing in the view since both returns the same result. I tried running dbcc, update statistics. but no luck. Can anyone please help me in this issue.
Thanks
Ramesh
What is the overhead of using extended stored procedures?I created a table with 500,000 rows.1) I ran a select on two columns and it runs in about 5 seconds.2) I ran a select on one column and called an UDF (it returns aconstant string) and it takes 10 seconds.3) I ran a select on one column and called a UDF that calls an extendedstored procedure that returns a string and it takes 65 seconds.I also tried running test 3 with 4 concurrent clients and each clienttakes about 120 seconds.
View 1 Replies View RelatedI am working on a technical design of data integration ETL package which will be moving data from SQL Server Source to DB2 destination. I currently have two options, when moving data to DB2(IBM AS400). I can call a AS400 Stored Procedure, and pass in the data to the stored procedure, and perform the insert processing within the AS400 environment or I could do inserts from SSIS in a DFT and write individually to AS400 tables. My question is from a performance and good practice perspective, which method should I move forward with. I need a possible list of pros- and cons when using AS400 Sproc vs using SQL within SSIS? I would really appreciate response from individuals who have done something similar in the past. Thanks a lot and I am really looking forward to responses.
I want to know the differences between SQL Server 2000 storedprocedures and oracle stored procedures? Do they have differentsyntax? The concept should be the same that the stored proceduresexecute in the database server with better performance?Please advise good references for Oracle stored procedures also.thanks!!
View 11 Replies View RelatedHi,
This Might be a really simple thing, however we have just installed SQL server 2005 on a new server, and are having difficulties with the set up of the Store Procedures. Every time we try to modify an existing stored procedure it attempts to save it as an SQL file, unlike in 2000 where it saved it as part of the database itself.
Thank you in advance for any help on this matter
Using SQL 2005, SP2. All of a sudden, whenever I create any stored procedures in the master database, they get created as system stored procedures. Doesn't matter what I name them, and what they do.
For example, even this simple little guy:
CREATE PROCEDURE BOB
AS
PRINT 'BOB'
GO
Gets created as a system stored procedure.
Any ideas what would cause that and/or how to fix it?
Thanks,
Jason
One particular SQL stored procedure executes 25 times more slowly when invoked by an SQlAgent job than when executed directly. Any suggestions?
View 4 Replies View RelatedHow do I search for and print all stored procedure names in a particular database? I can use the following query to search and print out all table names in a database. I just need to figure out how to modify the code below to search for stored procedure names. Can anyone help me out?
SELECT TABLE_SCHEMA + '.' + TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
Seems like I'm stealing all the threads here, : But I need to learn :) I have a StoredProcedure that needs to return values that other StoredProcedures return.Rather than have my DataAccess layer access the DB multiple times, I would like to call One stored Procedure, and have that stored procedure call the others to get the information I need. I think this way would be more efficient than accessing the DB multiple times. One of my SP is:SELECT I.ItemDetailID, I.ItemDetailStatusID, I.ItemDetailTypeID, I.Archived, I.Expired, I.ExpireDate, I.Deleted, S.Name AS 'StatusName', S.ItemDetailStatusID, S.InProgress as 'StatusInProgress', S.Color AS 'StatusColor',T.[Name] AS 'TypeName', T.Prefix, T.Name AS 'ItemDetailTypeName', T.ItemDetailTypeID FROM [Item].ItemDetails I INNER JOIN Item.ItemDetailStatus S ON I.ItemDetailStatusID = S.ItemDetailStatusID INNER JOIN [Item].ItemDetailTypes T ON I.ItemDetailTypeID = T.ItemDetailTypeID However, I already have StoredProcedures that return the exact same data from the ItemDetailStatus table and ItemDetailTypes table.Would it be better to do it above, and have more code to change when a new column/field is added, or more checks, or do something like:(This is not propper SQL) SELECT I.ItemDetailID, I.ItemDetailStatusID, I.ItemDetailTypeID, I.Archived, I.Expired, I.ExpireDate, I.Deleted, EXEC [Item].ItemDetailStatusInfo I.ItemDetailStatusID, EXEC [Item].ItemDetailTypeInfo I.ItemDetailTypeID FROM [Item].ItemDetails IOr something like that... Any thoughts?
View 3 Replies View RelatedGreetings:
I have MSSQL 2005. On earlier versions of MSSQL saving a stored procedure wasn't a confusing action. However, every time I try to save my completed stored procedure (parsed successfully ) I'm prompted to save it as a query on the hard drive.
How do I cause the 'Save' action to add the new stored procedure to my database's list of stored procedures?
Thanks!
We recently upgraded to SQL Server 2005. We had several stored procedures in the master database and, rather than completely rewriting a lot of code, we just recreated these stored procedures in the new master database.
For some reason, some of these stored procedures are getting stored as "System Stored Procedures" rather than just as "Stored Procedures". Queries to sys.Objects and sys.Procedures shows that these procs are being saved with the is_ms_shipped field set to 1, even though they obviously were not shipped with the product.
I can't update the sys.Objects or sys.Procedures views in 2005.
What effect will this flag (is_ms_shipped = 1) have on my stored procedures?
Can I move these out of "System Stored Procedures" and into "Stored Procedures"?
Thanks!
Hello friends......How are you ? I want to ask you all that how can I do the following ?
I want to now that how many ways are there to do this ?
How can I call one or more stored procedures into perticular one Stored Proc ? in MS SQL Server 2000/05.
Hello
I'm start to work with SSIS.
We have a lot (many hundreds) of old (SQL Server2000) procedures on SQL 2005.
Most of the Stored Procedures ends with the following commands:
SET @SQLSTRING = 'SELECT * INTO ' + @OutputTableName + ' FROM #RESULTTABLE'
EXEC @RETVAL = sp_executeSQL @SQLSTRING
How can I use SSIS to move the complete #RESULTTABLE to Excel or to a Flat File? (e.g. as a *.csv -File)
I found a way but I think i'ts only a workaround:
1. Write the #Resulttable to DB (changed Prozedure)
2. create data flow task (ole DB Source - Data Conversion - Excel Destination)
Does anyone know a better way to transfer the #RESULTTABLE to Excel or Flat file?
Thanks for an early Answer
Chaepp
Hi,
Do you know how to write stored procedures inside another stored procedure in MS SQL.
Create procedure spMyProc inputData varchar(50)
AS
----- some logical
procedure spMyProc inputInsideData varchar(10)
AS
--- some logical
--- go
-------
I am writing a set of store procedures (around 30), most of them require the same basic logic to get an ID, I was thinking to add this logic into an stored procedure.
The question is: Would calling an stored procedure from within an stored procedure affect performance? I mean, would it need to create a separate db connection? am I better off copying and pasting the logic into all the store procedures (in terms of performance)?
Thanks in advance
John
Hi all - I'm trying to optimized my stored procedures to be a bit easier to maintain, and am sure this is possible, not am very unclear on the syntax to doing this correctly. For example, I have a simple stored procedure that takes a string as a parameter, and returns its resolved index that corresponds to a record in my database. ie
exec dbo.DeriveStatusID 'Created'
returns an int value as 1
(performed by "SELECT statusID FROM statusList WHERE statusName= 'Created')
but I also have a second stored procedure that needs to make reference to this procedure first, in order to resolve an id - ie:
exec dbo.AddProduct_Insert 'widget1'
which currently performs:SET @statusID = (SELECT statusID FROM statusList WHERE statusName='Created')INSERT INTO Products (productname, statusID) VALUES (''widget1', @statusID)
I want to simply the insert to perform (in one sproc):
SET @statusID = EXEC deriveStatusID ('Created')INSERT INTO Products (productname, statusID) VALUES (''widget1', @statusID)
This works fine if I call this stored procedure in code first, then pass it to the second stored procedure, but NOT if it is reference in the second stored procedure directly (I end up with an empty value for @statusID in this example).
My actual "Insert" stored procedures are far more complicated, but I am working towards lightening the business logic in my application ( it shouldn't have to pre-vet the data prior to executing a valid insert).
Hopefully this makes some sense - it doesn't seem right to me that this is impossible, and am fairly sure I'm just missing some simple syntax - can anyone assist?
i have created the folowing function but keep geting an error.
Only functions and extended stored procedures can be executed from within a function.
Why am i getting this error!
Create Function myDateAdd
(@buildd nvarchar(4), @avdate as nvarchar(25))
Returns nvarchar(25)
as
Begin
declare @ret nvarchar(25)
declare @sqlval as nvarchar(3000)
set @sqlval = 'select ''@ret'' = max(realday) from (
select top '+ @buildd +' realday from v_caltable where realday >= '''+ @avdate +''' and prod = 1 )a'
execute sp_executesql @sqlval
return @ret
end
hi
i need to use only one stored procedure and access many tablesso how write a stored procedure for that dohelp me looking forward for a reply to the earliest i am developing web page using asp.net using c# and sqlserver as backend
looking forward for a replygayathri
I am interested to know about stored procedures in Mssql .Can anyone please help me out.
Thanx in advance.
Hello I have two stored procedures
@ID INT
AS
SELECT (CASE WHEN NUM >= 10 THEN CAST(PAID AS FLOAT) / CAST(NUM AS FLOAT) * 100 WHEN NUM < 10 THEN 0 END) AS PER
FROM (SELECT (SELECT COUNT(*) AS Expr1
FROM Event_data AS D LEFT OUTER JOIN
Events AS E ON E.id = D.Event_id
WHERE (D.Transaction_type = 1) AND (D.Player_id = @ID)) AS NUM,
(SELECT COUNT(*) AS Expr1
FROM Event_data AS D LEFT OUTER JOIN
Events AS E ON E.id = D.Event_id
WHERE (D.Transaction_type = 1) AND (D.Transaction_value > 0) AND (D.Player_id = @ID)) AS PAID) AS X
and
@ID INT
AS
SELECT P.*,'/' + DBO.GETCHIPFOLDER(@ID) + '/' + ISNULL(P.PHOTO,'BLANK.GIF') AS PIC,ISNULL(
(SELECT SUM(TRANSACTION_VALUE)
FROM EVENT_DATA WHERE PLAYER_ID=@ID AND TRANSACTION_TYPE=1
GROUP BY PLAYER_ID),0) AS WINNINGS FROM PLAYERS P
undefined P
The first returns a percentage for player wins, the second gives me a photo and sums the player winnings
I would like to combine the results so I can get the percentage and wininngs in one query, in another matter all together I would like create a procedure like the first but instead of returning only one player, I would like to return the percentage for each player
Thanks in advance for any light you can shine on this.
I have a question about stored procedures, Is it better to use stored procedures even if I only use it once at my site? Or is it better to write the sql-part directly in the sqldatasource?
And am I forced to create two different stored procedures even if they are exactly the same except the "Where-part"?
Now I have around 40 stored procedures, and quite many of them looks the same except the where-part...
(Iam just a beginner with SQL)
Hello every one,
I m working in aspx 2.0 with sql server 2005, please tell me how can I create Stored Procedures for two or more tables not a single table(select,insert,update,delete please send me the queries which can help me in easy way I will very thankful to you
Thank you
I am learning to make a ASP web site and feel that if i can do it the harder way using some stored procedures instead of using multiple datasources on each page requiring that it might be better. So i am wondering what are these used for:DECLARE vs just entering "@param1 varchar(30)"When i use "DECLARE @rc int" i get the error "Incorrect syntax near DECLARE"How to return values to ASP page in Visual Studio 2005 How to use @@rowcount - doesn't seem to work for me?i tried using DECLARE @rc intSET @rc = @@rowcountWhen to use GO, BEGIN etcIf i want to use the variable only in the procedure, and not needed to be inputed, do i need to put it in the CREATE PROCEDURE (section)?Should i use my own stored procedures or VS2005 created ones using datasources? not really procedures but SQL, in SQL can i do like IF ELSE? if i use my own i cant use the Optimistic Concurrency right? and whats that?
View 1 Replies View RelatedIs there a website or somewhere i can go to read up on stored procedures??
View 2 Replies View RelatedcREATE PROCEDURE emp @val varchar(50)AS
declare @test varchar(50)declare @a varchar(50)set @a= @val + '_a'set @test = 'alter table dbo.rights_user add ' + @a + ' varchar(50) null'
execute(@test)
GO
this is my procedure...anyth wrong here...i can able to execute procedure only with 3 char..egexec emp 'na'exec emp 'hr10'--->wen i try like this cannot..showing datataype mis match
Hi,
Can anyone help me. I've created a stored procedure in sql server and I'm trying to run it from my asp.net page. On Database Explorer I can't see it, or any for that matter, however I can see tables in the same schema.
Also I can't see it when I build a table adapter either.
Can anybody help?
Thanks
Sam
Hi,how can I use stored procedures in asp.net. The stored procedure itselve is defined on the sqlserver and works fine.Actual I found out that in my asp.net 2-surrounding there can be the adofunction disabled.I tried to use it with dimension of a new SqlConnection but I'm woundering why within a visual basic part I don't get the codecompletion whenI use the dimensioned object combined with commands.Regards,Ruprecht Helms
View 2 Replies View RelatedHi,I have a procedure that insert some values into database. The point is, when somebody doesn't fill up a certain field on the form, I don't want the procedure to insert an empty row into database. The procedure looks like this:@tresc text, @id_test int, @odp text, @correct bit, @odp1 text, @correct1 bit, @odp2 text, @correct2 bit, @odp3 text, @correct3 bit, @odp4 text, @correct4 bit, @odp5 text, @correct5 bit, @odp6 text, @correct6 bit, @odp7 text, @correct7 bit ASDeclare @id_utworzonego_pytania intBeginSet nocount on Insert into Pytanie (tresc,id_test) values ( @tresc,@id_test) select @id_utworzonego_pytania=@@IDENTITY if(@odp is not null) BEGIN Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp,@correct,@id_utworzonego_pytania) END Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp1,@correct1,@id_utworzonego_pytania) Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp2,@correct2,@id_utworzonego_pytania) Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp3,@correct3,@id_utworzonego_pytania) Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp4,@correct4,@id_utworzonego_pytania) Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp5,@correct5,@id_utworzonego_pytania) Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp6,@correct6,@id_utworzonego_pytania) Insert into Odpowiedz (odp,correct,id_pytania) Values (@odp7,@correct7,@id_utworzonego_pytania) SET NOCOUNT OFF END And the code:con = new SqlConnection("Data Source=ELF;Initial Catalog=logos;Integrated Security=True"); SqlCommand cmd = new SqlCommand("StoredProcedure2", con); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add(new SqlParameter("@tresc", TextBox1.Text)); cmd.Parameters.Add(new SqlParameter("@id_test", id)); cmd.Parameters.Add(new SqlParameter("@odp", TextBox10.Text)); cmd.Parameters.Add(new SqlParameter("@correct", RadioButtonList2.SelectedValue)); cmd.Parameters.Add(new SqlParameter("@odp1", TextBox2.Text)); cmd.Parameters.Add(new SqlParameter("@correct1", RadioButtonList1.SelectedValue)); cmd.Parameters.Add(new SqlParameter("@odp2", TextBox3.Text)); cmd.Parameters.Add(new SqlParameter("@correct2", RadioButtonList3.SelectedValue)); cmd.Parameters.Add(new SqlParameter("@odp3", TextBox4.Text)); cmd.Parameters.Add(new SqlParameter("@correct3", RadioButtonList4.SelectedValue)); cmd.Parameters.Add(new SqlParameter("@odp4", TextBox5.Text)); cmd.Parameters.Add(new SqlParameter("@correct4", RadioButtonList5.SelectedValue)); cmd.Parameters.Add(new SqlParameter("@odp5", TextBox6.Text)); cmd.Parameters.Add(new SqlParameter("@correct5", RadioButtonList6.SelectedValue)); cmd.Parameters.Add(new SqlParameter("@odp6", TextBox7.Text)); cmd.Parameters.Add(new SqlParameter("@correct6", RadioButtonList7.SelectedValue)); cmd.Parameters.Add(new SqlParameter("@odp7", TextBox8.Text)); cmd.Parameters.Add(new SqlParameter("@correct7", RadioButtonList8.SelectedValue)); con.Open(); cmd.ExecuteNonQuery(); con.Close();It works perfectly if someone fill all the textboxes; but it is not required. So when you leave an empty textbox, the procedure inserts an empty row into database. Please, help!Regards,N.
View 7 Replies View RelatedJust a question or 2: Would it be faster in your opinion to attempt to insert a user into a database and should a database user already exist and an exception is caught for duplicate key existing... warn the user that it already exists in the database or rather by using a stored procedure to check. ( I'm trying to remove as much redundancy in code as possible)Now for another instance... I need to create either 3 procedures, 1st to check if a user exists with relevant data... the 2nd to update if there is already data, 3rd to insert should it be null. Or should i just use a single procedure that Checks if the user exists, if the @@rowcount = 1 then update else insert. ( all in 1 compact procedure) Id like to hear some peoples opinions in this matter as everyone seems to have different ways of doing things, I would just like to know whats best.
View 3 Replies View Relatedhi to all,
i am using asp .net 2.0 and SQL Server 2005.
i want to use STORED PROCEDURES in my web application.
any links or code helps me a lot.
thanks in advance.