Using A Scalar Valued Function As A Parameter Of A Table Valued Function?
Ok, I'm pretty knowledgable about T-SQL, but I've hit something that seems should work, but just doesn't...
I'm writing a stored procedure that needs to use the primary key fields of a table that is being passed to me so that I can generate what will most likely be a dynamically generated SQL statement and then execute it.
So the first thing I do, is I need to grab the primary key fields of the table. I'd rather not go down to the base system tables since we may (hopefully) upgrade this one SQL 2000 machine to 2005 fairly soon, so I poke around, and find sp_pkeys in the master table. Great. I pass in the table name, and sure enough, it comes back with a record set, 1 row per column. That's exactly what I need.
Umm... This is the part where I'm at a loss. The stored procedure outputs the resultset as a resultset (Not as an output param). Now I want to use that list in my stored procedure, thinking that if the base tables change, Microsoft will change the stored procedure accordingly, so even after a version upgrade my stuff SHOULD still work. But... How do I use the resultset from the stored procedure? You can't reference it like a table-valued function, nor can you 'capture' the resultset for use using the syntax like:
DECLARE @table table
@table=EXEC sp_pkeys MyTable
That of course just returns you the RETURN_VALUE instead of the resultset it output. Ugh. Ok, so I finally decide to just bite the bullet, and I grab the code from sp_pkeys and make my own little function called fn_pkeys. Since I might also want to be able to 'force' the primary keys (Maybe the table doesn't really have one, but logically it does), I decide it'll pass back a comma-delimited varchar of columns that make up the primary key. Ok, I test it and it works great.
Now, I'm happily going along and building my routine, and realize, hey, I don't really want that in a comma-delimited varchar, I want to use it in one of my queries, and I have this nice little table-valued function I call split, that takes a comma-delimited varchar, and returns a table... So I preceed to try it out...
SELECT *
FROM Split(fn_pkeys('MyTable'),DEFAULT)
Syntax Error. Ugh. Eventually, I even try:
SELECT *
FROM Split(substring('abc,def',2,6),DEFAULT)
Syntax Error.
Hmm...What am I doing wrong here, or can't you use a scalar-valued function as a parameter into a table-valued function?
SELECT *
FROM Split('bc,def',DEFAULT) works just fine.
So my questions are:
Is there any way to programmatically capture a resultset that is being output from a stored procedure for use in the stored procedure that called it?
Is there any way to pass a scalar-valued function as a parameter into a table-valued function?
Oh, this works as well as a work around, but I'm more interested in if there is a way without having to workaround:
DECLARE @tmp varchar(8000)
SET @tmp=(SELECT dbo.fn_pkeys('MyTable'))
SELECT *
FROM Split(@tmp,DEFAULT)
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Hi all, I copied the following code from Microsoft SQL Server 2005 Online (September 2007): UDF_table.sql: USE AdventureWorks; GO IF OBJECT_ID(N'dbo.ufnGetContactInformation', N'TF') IS NOT NULL DROP FUNCTION dbo.ufnGetContactInformation; GO CREATE FUNCTION dbo.ufnGetContactInformation(@ContactID int) RETURNS @retContactInformation TABLE ( -- Columns returned by the function ContactID int PRIMARY KEY NOT NULL, FirstName nvarchar(50) NULL, LastName nvarchar(50) NULL, JobTitle nvarchar(50) NULL, ContactType nvarchar(50) NULL ) AS -- Returns the first name, last name, job title, and contact type for the specified contact. BEGIN DECLARE @FirstName nvarchar(50), @LastName nvarchar(50), @JobTitle nvarchar(50), @ContactType nvarchar(50); -- Get common contact information SELECT @ContactID = ContactID, @FirstName = FirstName, @LastName = LastName FROM Person.Contact WHERE ContactID = @ContactID; SELECT @JobTitle = CASE -- Check for employee WHEN EXISTS(SELECT * FROM HumanResources.Employee e WHERE e.ContactID = @ContactID) THEN (SELECT Title FROM HumanResources.Employee WHERE ContactID = @ContactID) -- Check for vendor WHEN EXISTS(SELECT * FROM Purchasing.VendorContact vc INNER JOIN Person.ContactType ct ON vc.ContactTypeID = ct.ContactTypeID WHERE vc.ContactID = @ContactID) THEN (SELECT ct.Name FROM Purchasing.VendorContact vc INNER JOIN Person.ContactType ct ON vc.ContactTypeID = ct.ContactTypeID WHERE vc.ContactID = @ContactID) -- Check for store WHEN EXISTS(SELECT * FROM Sales.StoreContact sc INNER JOIN Person.ContactType ct ON sc.ContactTypeID = ct.ContactTypeID WHERE sc.ContactID = @ContactID) THEN (SELECT ct.Name FROM Sales.StoreContact sc INNER JOIN Person.ContactType ct ON sc.ContactTypeID = ct.ContactTypeID WHERE ContactID = @ContactID) ELSE NULL END; SET @ContactType = CASE -- Check for employee WHEN EXISTS(SELECT * FROM HumanResources.Employee e WHERE e.ContactID = @ContactID) THEN 'Employee' -- Check for vendor WHEN EXISTS(SELECT * FROM Purchasing.VendorContact vc INNER JOIN Person.ContactType ct ON vc.ContactTypeID = ct.ContactTypeID WHERE vc.ContactID = @ContactID) THEN 'Vendor Contact' -- Check for store WHEN EXISTS(SELECT * FROM Sales.StoreContact sc INNER JOIN Person.ContactType ct ON sc.ContactTypeID = ct.ContactTypeID WHERE sc.ContactID = @ContactID) THEN 'Store Contact' -- Check for individual consumer WHEN EXISTS(SELECT * FROM Sales.Individual i WHERE i.ContactID = @ContactID) THEN 'Consumer' END; -- Return the information to the caller IF @ContactID IS NOT NULL BEGIN INSERT @retContactInformation SELECT @ContactID, @FirstName, @LastName, @JobTitle, @ContactType; END; RETURN; END; GO ---------------------------------------------------------------------- I executed it in my SQL Server Management Studio Express and I got: Commands completed successfully. I do not know where the result is and how to get the result viewed. Please help and advise. Thanks in advance, Scott Chang
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SQL2K SP4 Gives Error 1706 Creating Multi-statement Table-valued Function Names Beginning With &&"sys&&"?
Hi all, I've created a number of tables, views, sproc, and functions whose names begin with "sys_", but when I tried to create a multi-statement table-valued function with this type of name, I got: Server: Msg 1706, Level 16, State 2, Procedure sys_tmp, Line 9 System table 'sys_test' was not created, because ad hoc updates to system catalogs are not enabled. I had a quick look in this forum for 1706 (and on Google) but couldn't find anything. Does anyone know for certain if this is a bug in SQL2K? Thanks, Jos Here's a test script: /* ---------------------------------------------------------------------------------------------------- T-SQL code to test creation of three types of function where the function name begins with "sys_". Jos Potts, 02-Nov-2006 ---------------------------------------------------------------------------------------------------- */ PRINT @@VERSION go PRINT 'Scalar function with name "sys_" creates ok...' go CREATE FUNCTION sys_test () RETURNS INT AS BEGIN RETURN 1 END go DROP FUNCTION sys_test go PRINT '' go PRINT 'In-line table-valued function with name "sys_" creates ok...' go CREATE FUNCTION sys_test () RETURNS TABLE AS RETURN SELECT 1 c go DROP FUNCTION sys_test go PRINT '' go PRINT 'Multi-statement table-valued function with name "sys_" generates error 1706...' go CREATE FUNCTION sys_tmp () RETURNS @t TABLE (c INT) AS BEGIN INSERT INTO @t VALUES (1) RETURN END go DROP FUNCTION sys_test go PRINT '' go /* ---------------------------------------------------------------------------------------------------- */ And here€™s the output from running the test script in Query Analyser on our server: Microsoft SQL Server 2000 - 8.00.2039 (Intel X86) May 3 2005 23:18:38 Copyright (c) 1988-2003 Microsoft Corporation Standard Edition on Windows NT 5.0 (Build 2195: Service Pack 4) Scalar function with name "sys_" creates ok... In-line table-valued function with name "sys_" creates ok... Multi-statement table-valued function with name "sys_" generates error 1706... Server: Msg 1706, Level 16, State 2, Procedure sys_tmp, Line 11 System table 'sys_tmp' was not created, because ad hoc updates to system catalogs are not enabled. Server: Msg 3701, Level 11, State 5, Line 2 Cannot drop the function 'sys_test', because it does not exist in the system catalog.
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Can't Use The NTEXT Datatype In SQLCLR Scalar-valued Functions
From the SQL Server documentation : "The input parameters and the type returned from a SVF can be any of the scalar data types supported by SQL Server, except rowversion, text, ntext, image, timestamp, table, or cursor"This is a problem for me. Here's what I'm trying to do :I have an NTEXT field in one of my tables. I want to run regular expressions on this field, and return the results from a stored procedure. Since SQL Server doesn't provide facilities to perform regular expressions, I need to use an SQLCLR function. I would have no problem doing this if my field was nvarchar. However, this field needs to be variable in length - I cannot set an upper bound. This is why I'm using NTEXT and not nvarchar in the first place.Is there a solution to this problem? I can't imagine that I'm the only person who wants to pass strings of arbitrary size to an SQLCLR function.
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Return Statements In Scalar Valued Functions Must Include An Argument
I'm trying to create a SQL server 2000 function that returns a scalar value, but I keep getting the error "Return statements in scalar valued functions must include an argument". Online clarification of this error message is no help at all.I've tried all sorts of combinations of the following, without much luck. Can someone point out my dim-witted mistake, please?ALTER FUNCTION dbo.intCoursesPublic (@intCatID as int) RETURNS intASBEGIN RETURN SELECT COUNT(intCourseID) AS Expr1 FROM dbo.tbl_guru_course_list WHERE (intCatID = @intCatID)END
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&&"RETURN Statements In Scalar Valued Functions Must Include An Argument&&" ERROR
Hi, I am trying to write a function which takes a string as input and returns the computed value. I need to use the output of this function as a coulmn in another select query. Here is the code (Example: @Equation = '(100*4)+12/272') create function dbo.calc(@Equation nvarchar(100)) returns float as begin return exec('SELECT CAST('+@Equation+' AS float)') end I am getting this error when i compile it "RETURN statements in scalar valued functions must include an argument" Any suggestions would be appreciated. Please respond Thanks
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Table Scalar Function Syntax. . How Wrong And How Far Am I?
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE FUNCTION DetailedView AS BEGIN Declare @fieldname varchar(10) Declare @stmt varchar(4000) Declare Fields Cursor For Select Amounttype From Amounttypes Set @stmt = 'Select pono, myid, billtype' Open Fields Fetch Next From Fields Into @fieldname While @@Fetch_Status = 0 Begin Set @stmt = @stmt + ', sum(amountfc * Case When amounttype = ''' + @fieldname + ''' Then 1 Else 0 End) As ' + @fieldname Fetch Next From Fields Into @fieldname End Close Fields Deallocate Fields Set @stmt = @stmt + ' From multiplebillsviewall Group By pono, myId,billtype ' return Exec(@stmt) END
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Passing Multi-valued Parameter To A Sp
Hello, I am forced to use a Sp in teh first place as my query is too long for the text dataset. I have a parameter Time_Period which ia a multivalued one but it is not allowing me to use this in the SP. using RS 2005. Any help appereciated. Thanks
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Problem Passing UDF Scalar Result To UDF Table Function
I'm having difficulties invoking a user defined table function,when passing to it a parameter that is the result of anotheruser defined function.My functions are defined like so:drop function dbo.scalar_funcgocreate function dbo.scalar_func()returns intbeginreturn 1endgodrop function dbo.table_funcgocreate function dbo.table_func(@p int)returns tablereturn (select @p as id )goGiven the above, I can do the following:Select from the scalar function works:1> select dbo.scalar_func() as scalar_result2> goscalar_result-------------1Selecting from the table function works, if i pass aconstant value (or a variable)1> select id from dbo.table_func(1)2> goid-------------1But, if I try to pass the table function the return valueof the scalar function in one call, it doesn't work,producing the following error:1> select id from dbo.table_func( dbo.scalar_func() )2> goMsg 170, Level 15, State 1, Line 1Line 1: Incorrect syntax near '.'.What am I missing here?Thanks kindly
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Parameterizing Multi Valued Parameter In Data Set
Hi, I am creating a data set for a ROLAP report which executes a dynamic SQL using EXEC. I am finding problems parameterizing multi-valued report parameters in the SQL being executed through EXEC. To consider a sample code: EXEC('select * from country where country_key in ('+@country+')') where @country is a multi-valued report parameter. Regards, Emil
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Setting Defaults On A Multi-valued Parameter
I want to set defaults for my multi-valued report parameter MONTH so that when the report starts, it automatically selects all the months prior to the current month (effectively creates a YTD report). However, using RS2005, I can't seem to figure out how to do this. I can create an IIF expression in 12 different value entries in the report parameters that returns the month based on the system date, but the first time I pass blanks, null or anything except a valid parameter, it clears the entire parameter list when the report displays. Does anyone have any suggestions for auto-populating multiple values in a parameter at runtime where one or more of the parameter values may be empty? Checking "Allow Null" or "Allow Blank" doesn't fix this problem. I tried to pass all the values in a single value entry on the report parameters page, but can't find the syntax that will allow this. I'm not sure if it will let you do that anyway... Trent
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Passing Multi-Valued Parameter To Subreport
I have a multi-valued parameter that I want to pass to a subreport. The values are 11, 12, 13, and 14. So here's what I've done: 1. For the properties of the clickable field of the first report, I have gone to the Navigation tab and chosen the subreport in the "jump to report" pulldown. 2. Then I clicked on the Parameters button and added a parameter name for the multi-valued parameter I am trying to send. For the Parameter value, I have tried 11,12,13,14. I have also tried =Split(11,12,13,14) 3. On the subreport, I create a report parameter with the same name, data type is string, multi-value is checked, and the available values pulldown is populated by a query. So I run the first report and click on the link that brings me to the subreport, but all the subreport shows is the results for 11, not 12, 13, and 14. How can I get the second report to understand that I want it to show all the records related to 11, 12, 13, and 14? If I bypass the first report and simply use the drop-down to choose 11, 12, 13, and 14 in the subreport, it works fine. I just can't seem to figure out how to correctly have the first report tell the subreport that it wants 11, 12, 13, and 14. Thanks in advance for any advice! Dan
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Referencing A Multi-valued Parameter In A Dataset
Hello, I am attempting to create a cascading parameter. Parameter's 1 & 2 are multi-valued. Datasets 1 & 2 supply Parameter's 1 & 2. The values for Parameter 1 as derived from Dataset 1 are 'A', 'B', 'C', 'D' and 'E'. The potential values for Parameter 2 will only be created if value 'C' is amongst the multiple values selected for Parameter 1. Thus I need to write my query for Dataset 2 so that it can check the values of Parameter 1 for the existence of 'C' otherwise it returns nothing. What is the best practice for a dataset referencing the values of a multi-valued parameter in order to generate it's resultset? Any help is appreciated.
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String Type Multi-Valued Parameter Issue
Hi There. I have a Multi-valued parameter that is a string type and it freaks out when a do a select all from my drop down list. I suspect it has something to do with size as it works great if a pick a reasonable amount of items. My parameter list is populated by 1463 items of 12 characters each. Is there a threshold I should have to worry about? Thanks, Mike
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Returning All Selected Values In Multi-valued Parameter
How does one return all selected values in a multi-valued parameter? Right now i have a filter on the dataset where (Expression) =Fields!LOCATION_ID.Value (Operator) = (Value) =Parameters!Loc.Value(0) This is just giving me data from the first value that is selected in the multi-valued dropdown. I need all returned from the parameter. Any ideas.
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How To Change Report Name Based On Multi Valued Parameter
Hi All, I'm having trouoble with changing my report name when I swtich to different parameter values. I use the following expression. IIf(Parameters!GroupVar1.Label = "CBank", "CBank", IIf(Parameters!GroupVar1.Value ="DTC","DTC","Total")) This works fine when I clear Mutli-Value box in paramter properties. but when I use multi-value, this does not work. Is there any solution for this? Thanks
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Report Does Not Load When Single Valued Parameter Is Changed ???
Hi all, I have a report running with both a db and Analysis services data source..When I change any of the multi-valued parameters a post-back is done and then the page is re-loaded all good. However. When I change one of the single value parameters a post-back occurs however the page said "Report parameter values must be specified before the report can be displayed. Choose parameter values in the parameters area and click the Apply button." If I THEN press APPLY the report loads perfectly with the selected option. I have un-hidden ALL my parameters and they all seem to get values.. Does anyone have any clue what could be going wrong ? Thanks.
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Expanding The Multi-Valued Parameter Dropdown Menu
Hello Everyone, I am trying to expand the multi-valued parameter menu object so I can display the selection list in a more user-friendly format since the text is fairly long. If left at the default setting then I have to scroll to the right to see the complete string(s). For a single-select parameter I can just CAST the string to CHAR(100) and the menu object will expand. However, it seems that this approach is not working for multi-valued parameter menu objects. Is this a bug in SSRS, and is there another way to accomplish this. Please let me know. Thank You!!!
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(Report Viewer) Problem Setting Multi-valued Parameter
I have a small problem with the reportviewer control that i just cannot seem to get around. I have report with a text box and a dropdownlist. The text box is used to specify a user name and the dropdownlist contains the list list of companies that the user can access. The dropdownlist is dependent on the text box. The report works fine on the reporting portal and in visual studio. The problem I am having is setting the values of the dropdownlist from a web page. The dropdownlist is a multivalued parameter. If I add one value to the parameter value collection that will be used to populate the the dropdownlist then the report works fine. the problem occurs when I Try to add more than one value to the report parameter collection. for example: for (int arrLengh = 0; arrLengh < arr1.Length; arrLengh++) { reportParam.Values.Add(arr1 [arrLengh].ToString()); } Please note that the values are actually added to the collection. The problem is that none of the items in the dropdownlist is selected when more than one value is added to the report parameter value collection. Is there a special way to set multiple values for a multivalue parameter in reportviewer for remote mode. Your help is greatly appreciated.
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Error With Multi-Valued Report Parameter Using Stored Procedure
Hi All, I'm unable to run the report the report with multi-valued parameter using the below StoredProcedure as dataset: CREATE PROCEDURE spprodsales @productid int AS select SalesOrderID,OrderQty,UnitPrice,ProductID FROM Sales.SalesOrderDetail Where ProductID IN (@productid) RETURN And when I'm replacing this dataset to a query as below I'm able to run the report with multiple values selected for productid parameter : select SalesOrderID,OrderQty,UnitPrice,ProductID FROM Sales.SalesOrderDetail Where ProductID IN (@productid) So, can anyone please help me out possibly using the same stored procedure as above. Thanks, Kripa
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Keep A Multi-valued Parameter Cleared From Selections Until The User Select His Choice
I have a report that includes two multi-valued parameters. In the Default Values section, I choose 'from query' and select dataset and value field. In the Available Values section, I choose 'from query' select the same dataset and value field, and in the label field I select the relevant label field. When I run the report my multi-valued parameters look like I selected the option 'select all' (all options are selected). How can I keep the multi-valued parameters cleared from selections until the user select his choice? Thanks in advance.
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Table Valued Functions : Why?
I'm studying for the MCDBA test & understand table valued functions but am struggling to find a good use for them... can anyone explain to me why you'd want to use one over a view?
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Views Or Table Valued Functions?
Hi I am writting Stored Procedures that have to be built on the base of other tables specially created for this purpose, is it better to create these intermediate tables as views or as functions returning tables? I guess views would be lighter on performance as they would not be created on the fly?
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