What is the procedure to create a extended stored procedure using C#.
Actually we have created a dll file using c# and it was added to the bin folder of mssql server.
Also dll file is added to the sql server using "xp_extendedproc"
But while executing the extended proc we got this error
"ODBC: Msg 0, Level 16, State 1
Cannot load the DLL xp_TestSql.dll, or one of the DLLs it references. Reason: 126(The specified module could not be found.)"
I've written a very simple extended stored proc--little more than what VC++
6.0's ext stored proc wizard generates--set up the xp in the master database,
and eventually want to execute it from a trigger defined on a table in another database...
I've tested the xp in Query Analyzer. If the DB is set to 'master', the xp
runs (exec xp_InputTrigger), no problem. If I change databases and try to run the xp, I get:
Server: Msg 2812, Level 16, State 62, Line 1
Could not find stored procedure 'xp_InputTrigger'.
Keying "exec master.xp_InputTrigger", also fails: Could not find stored procedure 'master.xp_InputTrigger'.
I've checked permissions--all seem to be set right. Anyone have any insight
for me here? Many thanks,
mjo
HiIf I register my own proc via execsp_addextendedproc 'xp_myproc', 'xp_mylib.dll'.How then I can look all my own procs and dll's?In which tables are this data saved?Thx.
View 1 Replies View RelatedIs it possible to write extended stored procs in VB? I do not know C or C++ or Perl or whatever ....
How about calling a COM from a stroed procedure???
Thanks,
Judith
What happens if any of the extended stored procs below can't connect to the Exchange server? Is the failure logged? Does it back off and try again later?
xp_startmail
xp_sendmail
xp_findnextmsg
xp_readmail
xp_deletemail
sp_processmail
xp_stopmail
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
Is there a way to namespace groups of stored procs to reduce confusion when using them?
For C# you can have ProjectName.ProjectSection.Classname when naming a class. I am just wondering if there is a way to do the same with SQL stored procs. I know Oracle has packages and the name of the package provides a namespace for all of the stored procs inside it.
HI,
CREATE PROCEDURE PROC1
AS
BEGIN
SELECT A.INTCUSTOMERID,A.CHREMAIL,B.INTPREFERENCEID,C.CHR PREFERENCEDESC
FROM CUSTOMER A
INNER JOIN CUSTOMERPREFERENCE B
ON A.INTCUSTOMERID = B.INTCUSTOMERID
INNER JOIN TMPREFERENCE C
ON B.INTPREFERENCEID = C.INTPREFERENCEID
WHERE B.INTPREFERENCEID IN (6,7,2,3,12,10)
ORDER BY B.INTCUSTOMERID
END
IF I AM USING THIS PROC AS I/P TO ANOTHER PROC THEN IT GIVES NO PROBLEM AS I CAN USE ?
CREATE PROCEDURE PROC2
AS
BEGIN
CREATE TABLE #SAATHI(INTCUSTOMERID INT,CHREMAIL NVARCHAR(60),INTPREFERENCEID INT,CHRPREFERENCEDESC NVARCHAR(50))
INSERT INTO #SAATHI
EXEC PROC1
ST......1,
ST......2,
END.
BUT IF , I USE ANOTHER PROC SIMILAR TO THE FIRST ONE WHICH GIVES SLIGHTLY DIFFERENT RESULTS AND GIVES TWO SETS OF RESULTS,THEN WE HAVE A PROBLEM,HO TO SOLVE THIS :-
CREATE PROCEDURE MY_PROC
AS
BEGIN
SELECT A.INTCUSTOMERID,A.CHREMAIL,B.INTPREFERENCEID,C.CHR PREFERENCEDESC
FROM CUSTOMER A
INNER JOIN CUSTOMERPREFERENCE B
ON A.INTCUSTOMERID = B.INTCUSTOMERID
INNER JOIN TMPREFERENCE C
ON B.INTPREFERENCEID = C.INTPREFERENCEID
WHERE B.INTPREFERENCEID IN (23,12,10)
ORDER BY B.INTCUSTOMERID
END
SELECT A.INTCUSTOMERID,MAX(case when A.intpreferenceid = 23 then '1'
else '0' end) +
MAX(case when A.intpreferenceid = 12 then '1'
else '0' end) +
MAX(case when A.intpreferenceid = 10 then '1'
else '0' end) AS PREFER
FROM CUSTOMER
GROUP BY A.INTCUSTOMERID
ORDER BY A.INTCUSTOMERID
END
WHICH NOW GIVES ME TWO SETS OF DATA , BOTH REQUIRED THEN HOW TO USE ONE SET OF RESULTS AS I/P TO ANOTHER PROC AND OTHER SET OF RESULTS AS I/P TO YET ANOTHER PROC .
CREATE PROCEDURE PROC2
AS
BEGIN
CREATE TABLE #SAATHI(INTCUSTOMERID INT,CHREMAIL NVARCHAR(60),INTPREFERENCEID INT,CHRPREFERENCEDESC NVARCHAR(50))
INSERT INTO #SAATHI
EXEC MY_PROC
ST......1,
ST......2,
END.
BUT, HERE I WANT TO USE FIRST DATASET ONLY , HOW TO USE IT ?
THANKS.
i'm calling a create table SQL from my ASP. There are a lot of fields created
by this sql. Wondering if an extended stored procedure would be a better choice? (can't use a stored procedure as i need to pass arrays) Will it enhance performance and also, can i use VB to make that DLL or i need to use VC?
thanks
Get current free space for all drives in megabytes (Documented)
EXEC master.dbo.xp_fixeddrives
Determine if file exists (UnDocumented Procedure)
DECLARE @i int
EXECUTE master.dbo.xp_fileexist '\myServerc$oot.ini', @i OUTPUT
SELECT @i
I created an extended procedure DLL according to the guidelines set forth in the Books Online. I placed this DLL to be called in a trigger. The DLL fires, but some aspects of the dll fail. Is there a C lang. limitation when used with SQL server? I can do file i/o in the dll (open a file, write to it) but other functions such as C API functions FindWindow / SendMessage always fail. I have tested the DLL outside of SQL server and it works fine. Whats up, I can't beleive that Microsoft would write SQLServer where only certain functions of the DLL called by SQL server will work.. Any ideas would be appreciated! KT
View 1 Replies View RelatedHey everyone,
I'm attempting to copy over extended procedures from another database, and it's only copying stored when I use the "Transfer Database" wizard. Anyone know why it doesn't copy extended, and how I can get it to? Thanks!
Alex
Hi all,
Plz help me to know whats wrong with following script:
EXEC sp_addextendedproperty
@name = 'col_Programs_ID_Description',
@Value = 'The Unique Identifier for a specific Program',
@level1Type = 'Programs',
@level2Type = 'ID'
I get the following error:
Server: Msg 15600, Level 15, State 1, Procedure sp_addextendedproperty, Line 42
An invalid parameter or option was specified for procedure 'sp_addextendedproperty'.
NOTE: If I dont use the last 2 parameters this procedure runs fine, but it adds the Extended Property to the Database Level while I'm trying to add it to the TABLE-->COLUMN level.
Thanks
Mariah
I have to write a stored procedure to gather .dat files from multiple network shares to a single location and bulk insert them using format files. I have the SP working that accepts the filename and performs the bulk insert into my SQL tables using the appropriate format file.
Now, I had originally wrote the "copy files" portion in VB using the FSO, but was told it has to all be in a SQL SP. I have been investigating the xp_cmdshell extended procedure, which would work if I weren't pulling the .dat files from a Novell volume. For example connecting to a windows share this works...
exec xp_cmdshell 'dir servershare', no_output
but not when using a servervolume (Novell), even though from the command prompt this command will work to the novell volume.
Does anyone know of any other extended procedure or method in T-SQL that can perform file system functions?
Thanks in advance for any help!
I would like to know if I can determine the calling user from withinan extended stored procedure. I assume it's accessible in theSRV_PROC structure somewhere.Also, does anyone know of a comprehensive list of what is included inthe SRV_PROC structure?This is for SQL Server 2000.Thanks
View 2 Replies View RelatedHi:
Does anyone know of a good primer on extended properties and why I would want to use them. I have you the on-line books sections but that does a clear "why". I have search for white papers and similar documents.
I understand they are good for documentation, but I was looking for something that explain Microsoft long-term vision. How I might use them in template scripts, VSTS, etc.
Thanks in advance for your help.
Gene
hi,
Can anyone tell me how to use the extended stored property like sp_addextendedproperty in java code?
Thanks,
Meghna
almost choked when i read the following recent post on The Daily WTF (http://thedailywtf.com/) the other day --
Logical Tiers? That Makes No Sense! (http://thedailywtf.com/ShowPost.aspx?PostID=28959)
i don't think i can do justice to how utterly stupid that stored procedure is
read the comments and have a laugh
one of the points made was that stored procedures are bad
this twigged something in my memory, so i dug around in my bookmarks, and sure enough, here's another decent discussion about stored procs --
Stored procedures are bad, m'kay? (http://weblogs.asp.net/fbouma/archive/2003/11/18/38178.aspx)
enjoy!
Hey guys.
I am wondering if it is possible to execute an .exe from a stored proc. I have an application that calls a stored proc and I am wanting for that stored proc to call up an app to show certain results. I have no way of doing this on the application itself as I dont have the source code. So, since I do have access to the SQL I am wondering if it could be done there.
Thanks
tibor
Does anyone know how to tell which procedures are called when SQL Server 2000 starts up if scan for startup procs is turned on?
View 11 Replies View RelatedCan somebody provide me an argument on how nicely formatted and indented procs perform better. I am currently formatting a 1000 line proc just to understand what it does ... Maybe your argument will help convince my development team to write neat procs :)
View 8 Replies View RelatedFirst off, this is a cross post which is also located here:
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=34073
Now, with the following stored procs and UDF, the Result is NULL and I cannot figure out why.
What I am doing is calling a stored procedure pass in an OUTPUT variable of type float. This stored proceudre then calls a different stored procedure passing the same OUTPUT variable of type float. The second stored procedure then calls a UDF passing in two variables to be multiplied ans this should set the OUTPUT variable to the result.
The UDF does return the correct result to the interior stored procedure, but the interior stored procedure does not pass the value back to the original stored procudure resultint in a Result value = NULL.
The code is below, just copy / past, execute and you will see exactly what I mean.
Any thoughts?
USE NORTHWIND
GO
CREATE FUNCTION RECTANGULAR_XSECTION
(@fWidth float, @fHeight float)
RETURNS float
AS
BEGIN
RETURN (@fWidth * @fHeight)
END
GO
CREATE PROCEDURE usp_shapes_GetRectangularXSection
@fResult float OUTPUT
AS
declare @fWidth float, @fHeight float
SELECT @fWidth = 108, @fHeight = 10
SELECT @fResult = [dbo].[RECTANGULAR_XSECTION](@fWidth, @fHeight)
SELECT @fResult AS CalledProcedureOkHere
GO
CREATE PROCEDURE usp_shapes_GetXSection
@fResult float OUTPUT
AS
EXECUTE usp_shapes_GetRectangularXSection @fResult
SELECT @fResult AS CallingProcedure_NULL?
GO
declare @fResult float
EXECUTE usp_shapes_GetXSection @fResult
SELECT @fResult as OutsideCallingProcedure_NULL?
GO
DROP FUNCTION RECTANGULAR_XSECTION
GO
DROP PROCEDURE usp_shapes_GetRectangularXSection
GO
DROP PROCEDURE usp_shapes_GetXSection
GO
Mike B
Hi all,
I have to write SPs in SQL 2005 based on procs in Oracle DB.How do I go abt this? Any help will be welcome.
Thank you
Necessity is the mother of all inventions!
I am trying to improve my SQL and reduce the number of connections my website is making to the server.
Currently I have a stored procedure that gets all the games (and their details) for a single user which works fine which uses a WHERE userid = @userid which is an Int value.
I now need to create a new procedure which brings back the to all their "friends" (again by their userid). How is it best to do this? I originally tried to do a WHERE userID IN (@userid) but was unable to work out what variable type to use for @userid.
Is it best to do a single query in this way or is there a way to use the existing SP, loop through the collection of userids and join the result together into a single set to return? If an IN is the best route, what is the correct datatype for the variable?
can anyone help me out.... i need to compare a date that was retrieved from the database and the system date then it must be coded in the stored procs of the database.. help!!!!
View 10 Replies View RelatedCould someone who has done it before be kind enough to post a short example of how to make a call from an extended stored procedure to a .NET DLL? Or even direct me to an example, or tell me that this is possible / not possible, it would help.
Thanks,Brian
I'm trying to execute an exetended stored procedure from a trigger. The scenario is this: when an input occurs on a table, my trigger is fired, the extended stopred procedure is to be run, and VB app is to be notified that there is new input to process.
Problem is, I can't seem to get the XP to run. I have written a minimal DLL
with VC++ 6, has nothing but the required __GetXpVersion function and the
trigger function, as:
__declspec(dllexport) SRVRETCODE xp_InputAlarm(SRV_PROC *pSrvProc)
{ return XP_NOERROR; }
__declspec(dllexport) ULONG __GetXpVersion()
{ return ODS_VERSION; }
Pretty simple. I have defined the XP in the master database, set the properties point to the DLL. Believe everything is set up properly. However,
when an input occurs, a run-time error is generated on the XP. Attempting to execute it in Query Analyzer gives this error:
"Cannot find the function xp_InputAlarm in the library D:CustomMedInstaCert SourceInputAlarmInputAlaInputAlarm.dll. Reason: 127(The specified procedure could not be found.)."
Which I think means it can't find the proper entry point (xp_InputAlarm) in the DLL. Any help would be greatly appreciated.
mjo
Is there any way I can create an SQL script on any extended stored procedures? I need to see what they do. I looked in books online, but it didn't help. Thanks.
View 3 Replies View RelatedPlease help to find an example of the code written on VC++ for an extended stored procedure (dll) for SQL Server 2000.
Thanks
I am looking for examples written in VB. Thanks ALOT!!
View 1 Replies View RelatedI am working with Visual Basic and SQL Server 2000. I am looking to convert some of the VB into extended stored procedures, yet everything I've been reading has said that xp's can only be written in C or C++. Is this true??
Thanks.
Caroline Kaplonski
ckaplonski@buckconsultants.com
is it possible to view the source of an extended stored procedure.
I know that it is a dll program
but i want to know how works one of my extented stored proc
Howdy,
I'm trying to call XP_CMDSHELL from a stored procedure that's not in the Master db. How do I call XP_CMDSHELL? I've tried "Use Master" but I get an error telling me that I can't use "USE" inside of a stored procedure.
Thanks!