I'm creating a Multi-statement Table-Valued Function...
Is it possible to insert variables into the table? In other words, is it possible to have something like
declare @value1 varchar(10) @value2 varchar(10)
BEGIN <do some work on value1 and value2> INSERT @returningTable @value1, @value2
instead of
BEGIN <do some work on value1 and value2> INSERT @returningTable SELECT col1, col2 from T_SOURCE
Here's why I want to insert variables...My function needs to return a table which contains a 'partial' incremental key. I'll go with an example to explain what i have to do
Source_table col1 col2 Mike 10 Mike 20 Ben 50 John 15 John 25 John 35
The table that my function needs to create should look like this col1 col2 col3 Mike 10 1 Mike 20 2 Ben 50 1 John 15 1 John 25 2 John 35 3
I thought of creating a cursor and then looping through it generate col3 and save values of other individual columns in variables. But don't know how to use those variables when inserting records into function table.
Any other ideas? I'm caoming from Oracle world, I might be having some strange ideas on how to solve this problem. Any help is appreciated.
Hey I have created a multi-statement table valued function
alter function fn_x(@x int)returns @tbl table ( position int identity primary key, i int) as begin insert into @tbl values (@x) insert into @tbl values (@x) insert into @tbl values (@x) insert into @tbl values (@x) returnend
Is it possible skipping the definition of the table columns (the light blue part)?I need to return a different structure based on a parameter.Dropping those lines throws an error "incorrect syntax near 'as'" The other solution is declaring each udf separately as one statement udf.Thanks
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
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.
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?
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?
Here's my function. The trouble - I can not make ORDER BY the "visits_count", "properties_count", "enquiries_count" fields. May be some one could help me with this?
CREATE FUNCTION [dbo].[GetPagedStatistics] ( @start_index int, @count int, @condition nvarchar(255), @order_field nvarchar(255), @date_from datetime, @date_to datetime ) RETURNS @total_stat TABLE ( username nvarchar(255), first_name nvarchar(255), last_name nvarchar(255), properties_count int, enquiries_count int, visits_count int, id_user int) BEGIN INSERT @total_stat SELECT top (@count) dbo.users.username, dbo.users.first_name, dbo.users.last_name, ISNULL(COUNT(DISTINCT dbo.advertisement.id_advertisement), 0) AS properties_count, ISNULL(COUNT(DISTINCT dbo.enquiry_emails.id_enquiry_email), 0) AS enquiries_count, ISNULL(COUNT(DISTINCT dbo.property_statistics.id_statistics), 0) AS visits_count, dbo.users.id_user FROM dbo.property_statistics RIGHT OUTER JOIN dbo.advertisement RIGHT OUTER JOIN dbo.users ON dbo.advertisement.id_user = dbo.users.id_user LEFT JOIN dbo.enquiry_emails ON dbo.enquiry_emails.id_advertisement = dbo.advertisement.id_advertisement ON dbo.property_statistics.id_advertisement = dbo.advertisement.id_advertisement WHERE 1=@condition and (dbo.advertisement.creation_date <= @date_to and dbo.advertisement.creation_date >= @date_from ) and ( (dbo.enquiry_emails.creation_date <= @date_to and dbo.enquiry_emails.creation_date >= @date_from and dbo.property_statistics.view_date <= @date_to and dbo.property_statistics.view_date >= @date_from ) or (dbo.property_statistics.view_date is null) or (dbo.enquiry_emails.creation_date is null) ) and (ISNULL(dbo.advertisement.id_parent, 0) = 0)
GROUP BY dbo.users.username, dbo.users.first_name, dbo.users.last_name, dbo.users.id_user
order by case when @order_field='username' then dbo.users.username end, case when @order_field='first_name' then dbo.users.first_name end, case when @order_field='last_name' then dbo.users.last_name end, case when @order_field='properties_count' then 1 end, case when @order_field='enquiries_count' then 1 end, case when @order_field='visits_count' then 1 end
Help! Been doing the box step with BOL for several hours , Using tables in Adventureworks to create inline-table-valued function to provide a parameterized view of three JOINS - Have sucessfully created the function but can't figure out where to 'Declare' my variable "@SalesAgentID" need to be able to invoke the function with a particular ID - If you can help me cut this dance short I would REALLY Appreciate it.
public static void FillRows(Object obj, out SqlString SOCIETA, out SqlString CLIENTE, out SqlString NUMEROCONTRATTO, out SqlDateTime FIRMA, out SqlDateTime CHIUSURA, SqlDouble AUTORIZZATO)
Whe I try to deploy my function, I get the following error:
Error 1 Function signature of "FillRow" method (as designated by SqlFunctionAttribute.FillRowMethodName) does not match SQL declaration for table valued CLR function 'dbf_Create_RiepilogoAccordi' due to column 6. CM.Reports.SIA.RiepilogoAccordi
I get this error whichever combination of name/value I use for column 6
Hi everyone.I'd like to know how stored procedures and table-valued functions compare when it comes to returning a resultant set of data. I know there is a link somewhere but I can't immediately find it.Thanks.
Hello Gurus, I have a stored procedure that gathers data from three tables and joins them, two of the tables need to have different rowcounts set, ie. pull only a certain number of rows from one table and only a certain number of rows from another table... The number of rows it should pull are stored within a table for each. Let me explain.... these tables hold Exchange storage group and mailstore data for a number of servers. Each server has a table entry with the number of child storage groups and each storage group has a table entry with the number of child mailstores. The tables get updated every two minutes via a program. I need to be able to get the most Data with the correct child counts for each server and storage group. I believe that i've found a way to do this with a stored procedure that calls a table-valued function. The table-valued function simply filters down the storage group table to it's number of storage groups, ordered by timestamp. I may be way off here, but i can't tell because both the stored procedure and function check out fine but when i execute the stored procedure it gives me the following error: Cannot find either column "dbo" or the user-defined function or aggregate "dbo.GetExchSGInfo", or the name is ambiguous.
My code is below: Stored Procedure: SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
Set @SID = (SELECT ServerID FROM dbo.Servers WHERE ServerName = @ServerName) Set @top = (SELECT sum(Children) FROM dbo.ExchangeSG WHERE ServerID = @SID) Set @SGCount = (SELECT SGCount FROM dbo.Servers WHERE ServerID = @SID)
SET ROWCOUNT @top SELECT dbo.ExchangeMSData.*, dboExchangeMailStore.*, dbo.GetExchSGInfo(@SID,@SGCount) As ExchangeSG, dbo.Servers.* FROM dbo.Servers INNER JOIN ExchangeSG ON dbo.Servers.ServerID = ExchangeSG.ServerID INNER JOIN dbo.ExchangeMailStore ON ExchangeSG.StorageGroupID = dbo.ExchangeMailStore.StorageGroupID INNER JOIN dbo.ExchangeMSData ON dbo.ExchangeMailStore.MailstoreID = dbo.ExchangeMSData.MailstoreID WHERE (dbo.Servers.ServerName = @ServerName) ORDER BY dbo.ExchangeMSData.[TimeStamp] DESC, dbo.ExchangeSG.[TimeStamp] DESC
SET ROWCOUNT 0
And the Function: SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
CREATE FUNCTION [dbo].[GetExchSGInfo] ( @SID INT, @SGCount INT ) RETURNS TABLE AS RETURN ( SELECT TOP (@SGCount) * FROM dbo.ExchangeSG WHERE ServerID = @SID ORDER BY [TimeStamp] )
I am a bit confused by the difference between a stored procedure and a table-valued function. Can somebody please either give me a simple explanation, or point me at something I can read.
I thought I had it worked out, and had coded some action queries as stored procedures, and I wrote a table-valued function that was effectively an encapsulated SELECT so that SELECT * FROM Spouse(@ID) worked fine. Then I wanted to use a function SpousePair, that was similar to Spouse, to power a Gridview. I discovered that I couldn't. It seems that a SQLDataSource requires either a SELECT statement or a stored procedure. So I wrote a stored procedure SpousePair(@ID1, @ID2).
I find that whereas I tested Spouse with SELECT * FROM SPOUSE(@ID) I tested SpousePair with EXEC SpousePair @ID1 @id2
Now I want to combine these: if I could I would write SELECT * FROM SPOUSE(@ID) WHERE SPOUSEID NOT IN (SELECT SPOUSEID FROM SpousePair(@ID1, @ID2))
However this is invalid because you can't put a stored procedure in a Select statement, and SELECT .... NOT IN (EXEC SpousePair @ID1 @ID2) is also invalid.
Is there any alternative to creating a table-valued function, SpousePairA, that is identical to SpousePair but coded as a function. I'm reluctant to do this because then I'll have two bits of quite complicated SQL logic to maintain.
So I was creating a new table-valued function today which queries some data from a preexisting table. Since this is my first table-valued function, I decided to check out some of the examples and see what I can figure out.
One particular example helped me out a bit until I ran into some data access issues... http://msdn2.microsoft.com/en-us/library/ms165054.aspx
So I create my function:
[SqlFunction(DataAccess = DataAccessKind.Read,SystemDataAccess=SystemDataAccessKind.Read,FillRowMethodName = "FillMyRow",TableDefinition ="p1 int, p2 int"] public static IEnumerable getMyTable() { using (SqlConnection conn = ....) { using (SqlCommand command = conn.CreateCommand()) { ///.... populate command text, open connection using (SqlDataReader rdr = command.ExecuteReader()) { while (rdr.Read()) { customObject1 o = new customObject1(); ///... populate o's parameters from reader ... yield return o; } } } }
public static void FillMyRow( object source, out int p1, out int p2) { customObject1 f = (customObject1)source; p1 = f.p1; p2 = f.p2; }
Notice, this example yield returns the value o upon each iteration of the reader. Despite the fact that the DataAccess is set to Read I still get the error...
An error occurred while getting new row from user defined Table Valued Function :
System.InvalidOperationException: Data access is not allowed in this context. Either the context is a function or method not marked with DataAccessKind.Read or SystemDataAccessKind.Read, is a callback to obtain data from FillRow method of a Table Valued Function, or is a UDT validation method.
I did however get past this error, by creating a collection of customObject1, populated it within the while(rdr.Read()) loop, then return the collection after closing the connection, command and reader.
I assume this error has something to do with the fact that you can't yield return results from within an open reader. Is this error right though in this case? Whats causing it to throw a InvOp Exception? Or is this a bug?
Hello, It is possible to write stored procedures which take table names as parameters; is it also possible to do this with table valued functions?
For example, a simple stored procedure is this:
CREATE PROCEDURE SelectTop(@tableName sysname) AS BEGIN
Execute('Select top 10 * from ' + @tableName + ';')
END
I want to be able to do the analogous thing with a table valued function (so that I can query the result set, without having to create a temp table). How should I do this (i.e., pass a tablename as an argument to a table valued function)?
I need to create a function which takes a multi-value parameter. When I select more than one item, I get the error that I have too many arguments. Does anybody have a solution?
Or can I create a view and then do a "SELECT * FROM viewName WHERE columnName IN (@param)"?
I am trying to exclude records from a table where the ID column is the same but the Mail code Column is multi-valued.For Example: (the table looks like....)
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.
i have a report that can show upto 8 charts, dependant on the selection(s) made in a multi-valued parameter.
basically, the report gets loads of data back from DataCube.
if the user has selected (for example) 2 categories in the multi-valued parameter (e.g. "beverages" & "confectionary") , the the first chart will show the results filtered for "beverages" and the second chart will show the results for the "confectionary" category.
but
i want to hide any charts that are not used - i.e. the user only selects 3 categories, i want to show 3 and hide 5 charts and am trying to do this with IIF in the FILTER properties of the chart
so for each chart, i am checking to see if a Category selection has been made for that chart - and if it has, filter the results and display the chart. if no selection has been made, then filter the results for "XXXXX" (no data with this category)
am doing this by trying to get the selected value or "xxxxx" if noting selected
to hide the second chart when only one category has been selected, tried
But it works fine when there are > 2 categories selected
also
this works fine when there is 2 or >2 category selected
=iif(
Parameters!LOOKUPITEMCategoryDescription.count>2,
"more than 2",
"not more than 2")
it would appear that IIF is trying to evaluate the TRUE condition(Parameters!HydraCORELOOKUPITEMCategoryDescription.Label(2)) even though the condition is false !!!
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
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.
after the installation of SP1 I have a problem with multi-valued report parameters. The option to select all values are gone. Is there a bug within SP1?
Before the installtion of SP1 multi-valued report parameters works fine, the option to select all values was added automatically within the preview in Visual Studio 2005 and in published reports on the server.
The server was migrated from SQL2000 SP4 to SQL2005.
I am creating a Line chart report from a table. The source table includes a code column (String), date column (Datetime), and 12 statistic columns (Int). The dates are end of month dates only. ("1/31/2006", "2/28/2006","3/31/2006", etc.) There are about 8 different codes for each month. The statisic columns are the totals for the month for each code for a particular statistic.
On my line chart I want to show one or more statistics for one year for one or more codes. (A line for each statistic for a given code) The report has multi-valued parameters for the codes and the statistics. I have figured out how to create the chart for one or more codes for a given statistic. How can I select one or more statistic? Can any one help me out?
I am struggling with an issue with multi-valued parameters. I have a parameter that is a list of several hundred items and when someone selects all of them, I display the huge list in the report header vias the join command.
This works great for a few parameters, but overwrites my data when the list is large. I want to do something in the expression where I determine if all items are selected and then just display 'All' instead of the whole list. Any ideas would be very helpful!
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?
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...
I am trying to selectively show or hide a table based on the values in a multi valued parameter. How can I examine all values (simulate the like functionality) within an expression?
I have report A and Report B. In Report A I am using the Jump to Report functionality to go to Report B. I have a multi-valued parameter in botht the reports. So In Parmeters I am giving Parameters!xx.value to pass the value from Report A to Report B. The multi valued parameter has values 1,2,3,4 in both the reports.
I have a scenario where I need to pass a value of 5 to the report B. When I try to hard code the value I run into error while going to the second reeport saying parameter not declared.
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.
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.
