How Can I Tell Which Queries/stored Procedures Are Heavy Users Of Tempdb?
Jan 11, 2008I'm using sql 2005. I tried using Profiler with a filter on TempDB but it doesn't seem to record the activity.
Thanks.
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Stored Procedures, Queries Etc
Sep 19, 2007Hi,
I have a quick question about pushing things onto the database to do. It is supposed to be more efficient, and it is more secure. The downside as far as I can tell is that one can end up with incredibly expensive and complex database deployment using costly servers and software.
Is there an approach that minimizes database query time by moving much of the processing to the (less efficient) web server calling the database, and then only using simply queries. One would then process the data in code, stripping it down to exactly what is needed, rather than doing complex things on the db itself.
An example of this might be that you want to parse a field on a particular char. and return only the first part of the string, up until this char occurs. This can be done on the db server, but...
I understand that one might return extra information, but it seems there is a large potential payoff in less complexity and expense.
Anyway, if you know of such an approach and the name of it, I would appreciate hearing it,
Thanks
Help With Stored Procedures / Dynamic Queries
Jun 12, 2006Hello, I'm trying to create a Stored Procedure who receives the table name as a parameter, then uses a cursor to obtain every column name and then builds a string like SELECT col1, col2, ... from TABLE
In fact that would be the same as SELECT * FROM table; but I can't do this, because I'll be using this stored procedure to loop through many tables that has different quantity of columns with a DTS, and if a specify the *, then the DTS wouldn't let me do the select with tables with different quantity of fields.
Could you help me please, because my code isn't working:
CREATE PROCEDURE dbo.stp_Test
(
@tablename AS VARCHAR(50)
)
AS
DECLARE @columnname varchar(50)
DECLARE @strsql Nvarchar(500)
DECLARE @query varchar(4000)
SET NOCOUNT ON
DECLARE c1 CURSOR FOR
SELECT column_name FROM information_schema.columns
WHERE table_name = @tablename
OPEN c1
FETCH NEXT FROM c1 INTO @columnname
WHILE @@fetch_status = 0
BEGIN
IF (@strsql is null)
BEGIN
SET @strsql=@columnname
END
ELSE
BEGIN
SET @strsql = @strsql + ',' + @columnname
END
FETCH NEXT FROM c1 INTO @columnname
END
CLOSE c1
DEALLOCATE c1
SELECT @query = 'SELECT ' + @strsql + ' FROM ' + @tablename
EXEC @query
SET NOCOUNT OFF
GO
Stored Procedures Vs Inline Queries
Dec 17, 2007
Hi,
We have our DWH built in SQL Server 2005. We are doing reporting against the DWH and most of query logic is complex. For this purpose we have proposed to write SPs to encapsulate the logic and which in turn can be called from the Report Data Tab. But our IT Architect suggest us to have inline queries instead of SPs as that will reduce the overhead of going to the DBAs everytime the logic changes. As I am new to DWH+Reporting, I was really pondering over which way to go. Can anyone suggest a way out on this.
Thanks,
S Suresh
Calculated Fields In Queries Using Stored Procedures
Dec 20, 1999Help!
I have converted my Access Jet database to a SQL Server database. In Access, I had many functions that I created to use in my queries. SQL Server does not allow for functions to be created. So, I had to create procedures in SQL Server to perform what my functions did.
I am trying to use the procedures I created on calculated fields within my SQL statement in my view. It returns an error stating that the procedure is not recognized.
How can I create functions to be used in my query?
Thanks.
Converting Stored Procedures Back To MS Access Queries
Mar 15, 2007I know its a weird request, but we have created an application with sql server but our client wants a version which can be put onto disk.
We decided to create the stored procedures into queries, would this be the best idea and if so does anyone know if there is a freeware software that can do this or will I have to painstakingly re-create the queries?
Any advice would be greatly appreciated.
Many thanks
Smilla
Nested Queries, Stored Procedures, Temporary Table
Jul 23, 2005Hi,I'm adapting access queries to sql server and I have difficulties withthe following pattern :query1 : SELECT * FROM Query2 WHERE A=@param1query 2: SELECT * FROM Table2 WHERE B=@param2The queries are nested, and they both use parameters.In MS Acccess the management of nested queries with parameters is soeasy (implicit declaration of parameters, transmission of parametersfrom main query to nested query)that I don't know what the syntax should be for stored procedures.The corresponding stored procedure would be something likeCREATE TABLE #TempTable (...table definition...)INSERT INTO #TempTable ExecProc spQuery2 @Param2SELECT * FROM #TempTable WHERE A=@Param1And spQuery2 would be : SELECT * FROM Table2 WHERE B=@ParamI was wondering if this syntax would work and if I can skip theexplicit declaration of #TempTable definition.Thanks for your suggestions.
View 5 Replies View RelatedUsing Stored Procedures Are You Safe From Sql Injection If Your Not Using Dynamic Queries ?
Mar 12, 2008Im reviewing my stored procedures for a new application and got to thinking about protecting against sql injection. I think im pretty safe since im using stored procedures and none of them use any 'exec' commands within them, but im not sure.
I was reading this article, and again all the examples that list a stored procedure, have an 'exec' command somewhere that is the culprit. So, in my case lets say I was doing something like this:
Im generally using regularexpression validation controls on the client side of the application and limiting the max length of the input there as well.
Am I safe, or do I need further input checking within the procedure ?
Code Snippet
CREATE PROCEDURE [dbo].[get_Uploads]
@app varchar(50)
--Init variables
SET @error_number = 0
BEGIN TRY
SELECT [Logid],[Filename],[Label],[UploadDate],[App]
FROM UploadLog au
WHERE [App]=@app
END TRY
BEGIN CATCH
SET @error_number = -2
END CATCH
Application/Security Design: Stored Procedures Versus SQL Queries
Mar 7, 2007Hello everyone,
I don't know what category would be appropriate for this question but security seems to be close enough.
I have this case scenario: I am running an automated application that extracts data from a web site and stores the data into a table on SQL server 2005. This information is not confidential in the extreme of social insurance #'s, bank account #s, but should not be seen by a typical employee (it has no use for them). After the data has been stored, it retrieves the data from the same table, processes it, and updates the same table. This application runs every hour infinitely.
Should all the insert, update, and select queries be stored under a stored procedure? I am not concern with performance. My concern would fall under design and security.
Is it worth to hide the details of inserting/updating/selecting behind a stored procedure? Or should I just allow the program to send select/update/insert SQL queries?
No employee (other then the developer and the DB admin) or customer ever access this table (They do not have permission from SQL). The username and passwords were created with security in mind.
Any thoughts or ideas?
Thanks for your time, Adrian
TempDB Users Disappearing
Nov 7, 2001I am supporting a system that needs to allow users to have access to Temp DB. I set these users up using the GUI, but whenever the server is restarted, these users are wiped out. Is there anyway to keep these users when the server is rebooted?
Thanks for any help.
Tempdb Is Locked And Blocks Other Users
Oct 18, 1999When I am running reports on SQL Server 6.5 database which involves creation of temp tables, whole tempdb is locked. All other users are blocked,
The reports involve queries which fetch data into temporary tables, as,
SELECT c1 , c2, c3 ...
INTO #tmp1
FROM T1
WHERE C1 = xxx
AND .........
When any of these queries are run, it blocks all other operations using TEMPDB, like creation of temporary tables or queries using sorts etc.
It appears that the query locks the system tables (sysobjects, syscolumns) in TEMPDB.
However, the above query works fine if it is constructed as,
CREATE TABLE #tmp1 (a1 ..., a2 ...., a3 ..... )
INSERT INTO #tmp1
SELECT (c1, c2, c3)
FROM T1
WHERE c1 = xxx
AND .........
Could someone please tell me what actually is happening in the first scenario. Is there a way avoid the blocking of TEMPDB usage other than the workaround mentioned above (which means I have to change all my queries) ?
Thanks
Nishant
Set Priority For Queries For Certain Users
Jul 31, 2000Is it possible in SQL Server to set the priority at which a query will run
for certain users. I have some users who's queries I never want to
take over the database. These queries may take 10's of mintes to complete,
and will slow down the server and affect the performance of more important queries. Is there a way to keep this from happeneing?
Thanks
Tracking Queries By Users
Feb 23, 2008
Hi all,
I would like to track the queries submitted to a SQL SERVER 2005 database in my university.
I would like to create a metadata database that will collect what was the query, who executed it and when.
Do you think of a way to do it??
thanks a lot!
Yoav
Stored Procedure To Get All Users Or All Users Of A Specific Country
Apr 30, 2008hi alli've got two tables called "webusers" (id, name, fk_country) and "countries" (id, name)
at the meantime, i've a search-page where i can fill a form to search users. in the dropdown to select the country i included an option which is called "all countries".
now the problem is: how can i make a stored procedure that makes a restriction to the fk_country depending on the submitted fk_country parameter?it should be something like
SELECT * FROM webusers(if @fk_country > 0, which is the value for "all countries"){ WHERE fk_country = @fk_country}
who has an idea how to solve this problem?
Permission Problem W/ Users Running Some Queries
Feb 26, 2002Permission problem w/ users running some queries
I have a SQL-authenticated user that I want to be able to run a pass-thru query. The user was created solely for this particular job. I've given it appriopriate permissions on all the tables, views, and stored procedures directly involved in the task. BUT, the task fails.
If I have the query perform a simple task, like SELECT * FROM TABLE, it works,
but, not on this:
CREATE PROCEDURE sp_gtn_RunFromAccess AS
EXEC msdb..sp_start_job @job_name='CA_GTN Download From Mainframe'
GO
If I give the user the DB_OWNER role, it fails; however, if I make it a sys admin, it suceeds. That is obviously no good. It also suceeds it I put sa and a password in the ODBC string, but that is unacceptable, as well.
What kinds of permission am I overlooking?
Any thoughts on this?
Thanks,
Michael G
Oracle Stored Procedures VERSUS SQL Server Stored Procedures
Jul 23, 2005I 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 RelatedAdding Roles/Users Using SQL Procedures...
Dec 3, 2003Hi everyone out there in ASP.NET land.
Have a quick question...
How do I add a role and/or a user through code (Specifically SQL Statements). If not through SQL, then maybe VB.NET?
Thanks ahead of time,
Denvas
Why Use CLR Procedures For Simple Queries?
Dec 24, 2005Allow me to preface this by saying I'm really excited about writing stored procedures, etc. in C#!! Now...on to my question. When an application needs a simple result set (i.e., SELECT....), why use C# to write this? In the samples I've seen, the developer ends up writing the select statement anyway in the CLR hosted stored procedure. What would be the benefit? You end up writing more code just to write the same query. Now, executing complex logic is another story. I see HUGE benefits to hosting classes on the data server. Anyway, what is Microsoft's answer to this question? Is it recommended that one still write simple statements in T-SQL and leave the complex stuff to CLR code? Thanks in advance for your advice!
View 5 Replies View RelatedQueries, Views, Procedures : Best Practice
Nov 23, 2007Hello all,
I'm looking for a best practice.
Let's say you have a report that contains out of 3 queries.
How are you going to create the report and why?
1. Just use "select * from table where p1= value" in your report
2. Save the query in your db as a view and use the view in your report
3. Create a procedure that contains all 3 queries. And use the procedure with some parameters in your report?
Kr
Karel.
Stored Procedures 2005 Vs Stored Procedures 2000
Sep 30, 2006Hi,
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
All My Stored Procedures Are Getting Created As System Procedures!
Nov 6, 2007
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
Heavy Fragmentation
May 8, 2007I'm attempting to debug some query timeouts on a production server.
Several tables involved in this query have logical scan fragmentation levels around 10%, and extent scan fragmentation levels 90%+.
Running INDEXDEFRAG or DBREINDEX reduces the logical scan fragmentation down to almost 0%, but the extent scan fragmentation stays upwards of 90%.
Why? What can I do to get this fragmentation down? Is it because this particular index is on a GUID?
Problems On Heavy Load
Mar 31, 2008Hi,
When running a test against SQL Server 2005 Express most of the connections work fine, but some don't. I get that Exception;
When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
It seems to me I am reaching some kind of limitation. What can I do to increase the number of connectionst?
Regards, Jean
Timout - SQL Not Responding Under Heavy Load
Apr 1, 2005Hi,
Our app uses an NT4 SQL 2k box and a Win2k IIS box. To fulfill the text searching requirements we've had to use dynamic SQL (created within a large SP). This query searches about 8000 rows in a flat table (which we create and keep up to date using a scheduled SP which trawls the underlying tables). It's a complicated SP, and can return all 8000 rows (I think we're winning the battle to have this capped though).
When we get about 50 users hitting the app and doing searches simultaneously, performance drops severely (20 secs+ for a query rather than ~2 secs), and we get a lot of errors - which report that:
Source: .Net SqlClient Data ProviderMessage: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
We also get a lot of Invalid Viewstate errors, which i'm totally baffled by, and the odd IIS Access Denied error - as if authentication (NTLM) is timing out.
Neither the Web not the SQL machines are being hit very hard - the web server in particular is not under any strain whatsoever.
It doesn't appear to be related to connection pooling, from the logged error messages we're getting.
Does anyone have ANY suggestions as to where I should be looking?!
Coping Data Into A New DB With Heavy Constrants
Mar 21, 2007I'm trying to take data and push it into a new database.
This data was taken from a database where there were many contraints, FK etc. quite a complicated structure and now sent to us with just the data in the tables with none of these constraints, FK!!
This data now needs pushing into the original database structure, so all the data will live within the constraints, but using an insert SPROC throws some FK errors, what is the best way to push this data into it's structure!
somebody suggested DTS but this doesn't take into account the constraints, also we need to run this at anytime for a number different datasets. Can anybody help ?(if you can decipher my explantion)
Many thanks for reading, please indicate if you need more info.
Shrew
Heavy Bulk- Insert Task
Jan 18, 2008I am doing heavy Bulk insert task to one Database.When i checked the Activity Monitor I saw it was suspended and Wait type:PAGEIOLATCH_EX
So it stopped itself.Do any experts have good idea about what is going on?
Appreciate for help
Log Backups On Heavy And Busy Database
Apr 30, 2008
What will be best procedure for the following situation.
Heavy traffic database on daily basis. G growth every day. so Full backups every nights are needed.
Vendor recommends not taking Log backups but copy just log files over other location. will this help avoid degrading the performance during business hours.
if i don't take log backups, i am not able to recover Point in time if needed.
also log files can then grow faster and then i will have to shrink it more often.
what are risks and suggestions.
Thanks,
Decreased Memory Usage When The Workload Is Heavy?
Nov 6, 2007I have a specific job that should be run with a decreased memory usage when the workload is heavy on the SQL Server.
This is a heavy job that has no specific requirement when it comes to response time.
It is important that the rest of the application shouldn’t be affected with longer response time when this job is running.
How can this job bee handled from the application, without having to create a separate batch job.
Best Way To Execute Heavy Sprocs Wihtout Slowdown
Aug 27, 2007Hi,
Just a general question here.. I'm designing a web application that might have 50 million - 100 million rows plus. Basically its a simple logging table each row probably only 24 bytes wide, however I can see it taking quite awhile to execute.
The query is basically a group by, showing the amount of "hits" per day.
Are there any special types of strategies I should implement ? Or is a properly designed structure with indexes likely sufficient (on the right hardware of course)
Thanks for any advice!,
Mike
How To Search And List All Stored Procs In My Database. I Can Do This For Tables, But Need To Figure Out How To Do It For Stored Procedures
Apr 29, 2008How 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'
Using A Stored Procedure To Query Other Stored Procedures And Then Return The Results
Jun 13, 2007Seems 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 RelatedHow To Save Stored Procedure To NON System Stored Procedures - Or My Database
May 13, 2008Greetings:
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!
Stored Procedure Being Saved In System Stored Procedures
Apr 7, 2006We 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!