Optional OLEDB Parameters : Need Help
Nov 8, 2007
I am using Oracle 7.3 against SSRS. I have created an inline query with 7 unnamed parameters. I have named them in SSRS parameters window and selected NULL and ALLOW BLANK check boxes for all the parameters.
a.)
What I think should happen is: I should be able to pass the combination of parameters NOT all of them, because I have selected NULL and Blank check boxes. But in my case the query is not giving me any results if I pass 2 of 7 parameters. I can see the results only when I pass all 7 parameters.
Please Help me...
b.)
Is there a way I can create a Dynamic WHERE condition using ORACLE 7.3 as database and OUT REF cursor as out parameter for generating parameters. An Example would be great.......
I am much familar with SQL Server and creting a dynamic query is no problem. Because of this new assignment in Oracle 7.3 I am pulling my hair to solve this perticlaur problem...
Please guys / gals help..
Thanks,
Deepak
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Sep 15, 2005
Is there an option in a stored procedure whereby a parameter can be flagged as optional? I have a stored procedure with 2 parameters, Product and Date, and I would like to be able to just pass the Product, or pass Product and Date from an Access project. Is this possible?
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Jan 19, 2008
Hi, I wish to create a user defined funtion in sqlserver2005 with optional parameter list. So at the time of function calling the parameters should be a optional one. How can i do this? please help me .
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Feb 13, 2008
Good day,
I have an issue on constructing dynamic WHERE conditions that use OPTIONAL parameters.
SP_SOMETHING (
1) @DateFrom datetime,
@DateTo datetime,
2) @Param1 char(8),
3) @Param2 char(3),
4) @Param3 tinyint
)
I would like to use a where clause that can make use of any combination of the 4 parameters (the two dates should be together)
1 2 3 4
/ x x x
x / x x
x x / x where x = not supplied
/ = supplied a value
(and so the list continues)
Can anybody assist me or give me insights on how to go about this complicated WHERE construct without listing all the probable combinations of the supplied parameters in series of IF statements.
thank you
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Sep 10, 2005
Dear GroupI'd like SQLManager to start on Win98. I've added it to StartUp and itshows in the right-bottom corner of the desktop upon operating systemstart but the database still shows as stopped. Is there's a command Ican use like SQLMANGR.EXE /start or SQLMANGR.EXE /run from the commandline?Thanks very much for your efforts and sharing your expertise!Martin
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Jul 27, 2007
On many reports I have optional parameters, for example if the employee is filled in it will run for that employee but if it's null it runs for all employees. Which is the best way to handle this?
The two options I am currently looking at are:
select * from employee where (employee.id = @EmpID or @EmpID is Null)
select * from employee where isnull(@empID, employee.id) = employee.id
Anyone else have a different solution?
Currently we use the OR approach and I wanted to see if anyone had any thoughts before switching to using IsNull, which seems a bit better.
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Sep 11, 2007
Can I create a report that offers users a choice for the parameter. I want to show a sales report based on either Fiscal year or Calender Year. Can I do that with one report that allows an option on which parameter to choose or do I need two reports.
Thanks.
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Jul 28, 2006
I'm rewriting a T-SQL function that is called "Proper Case" which takes in a sentence and returns the sentence with the first letter of each word capitalized.
The new CLR(C#) function implements new functionality where it can take a string and turn it into a properly cased string, sentence cased string, lower cased, upper cased, and toggle cased.
The function takes in one parameter, the string, and the casing type, a string also. I want the casing type to be optional where if it's not passed in it defaults to "proper". The reason why I want this is so that I can easily replace the existing T-SQL function without having to add an extra parameter to each call to make life easier.
I know you can do it for SQL stored procedures, but I seem to be having trouble with the function.
Things I've tried:
1) Overloading the function in C# doesn't work because SQL functions don't like overloaded functions.
2) Attempting to set a "default" value to the parameter.
a) casingType nvarchar(4000) = 'proper'
b) default casingType nvarchar(4000) = 'proper'
Any ideas would be greatly appreciated. Thanks!
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Jun 11, 2007
Is there a way to create optional parameters in Reporting. For example, I have two tables Region and Country, with drop downs in report displaying the list of each. The stored proc for Country list expects an input parameter RegionID but does NOT require one for the result set to be fetched. The stored procs run fine in sql, but when run with the report, the designer always complains that the RegionID Parameter must be provided for the Country DataSet/List to be populated. Is there a way to create this RegionID parameter as optional such that the country list is populated with all rows in the Country table if no RegionId is provided, and filters if a RegionId is provided??
here is some code that I am using my stored procs
Code Snippet
For Regions
SP1
Create Proc... spGetRegions
Begin...
Select RegionID, RegionName From Region
Order By RegionName
End
Code Snippet
For Countries
SP2
Create Procedure dbo.spGetCountries
@RegionID int = NULL,
AS
Begin
Select CountryID, CountryName From Country C
WHERE C.RegionID = CASE WHEN @RegionID is null THEN C.RegionID ELSE
@RegionID END
ORDER BY C.CountryName
END
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Mar 5, 1999
I need to create a SP that will accept a varying number of input parameters. A form that the user completes has a several controls that serve to narrow the number of records returned. The more parameters given, the fewer rows returned. In the past I have accomplished this by dynamically building an SQL statement. I dosen't appear possible to pass an SQL statement in a variable to a SP. Any help or pointers would be appreciated.
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Jun 12, 2006
I need to create a stored procedure that will search some tables.
The stored procedure will be passed some parameters that may or may not have a value.
I have googled the best way to do this.
I found this post as an example: Optional Search Parameters
and also found this example : Optional Parameters in T-sQL
I am trying to figure out the best way to do this.
In the past I would build a dynamic query like the following.
SQL Code:
Original
- SQL Code
CREATE PROCEDURE [dbo].[Search_Results]
@SUBCITY VarChar(100) = 'Any'
AS
------------------------------------------------------------------------------------------------------
Declare @SUBCITYString Varchar(200)
If @SUBCITY <> 'Any'
Begin
Set @SUBCITYString = ' AND (Table1.SUBCITY LIKE ''' + @SUBCITY + '%'') '
End
Else
Begin
Set @SUBCITYString = ''
End
-----------------------------------------------------------------------------------------------------
Declare @SQLString As Varchar(500)
Set @SQLString = 'SELECT*
FROMTable1
WHERE Table1.ID IS NOT NULL
' + @SUBCITYString + '
ORDER BY Column ASC'
Execute (@SQLString)
GO
CREATE PROCEDURE [dbo].[Search_Results] @SUBCITY VarChar(100) = 'Any' AS ------------------------------------------------------------------------------------------------------DECLARE @SUBCITYString Varchar(200)IF @SUBCITY <> 'Any' BEGIN SET @SUBCITYString = ' AND (Table1.SUBCITY LIKE ''' + @SUBCITY + '%'') 'ENDELSE BEGIN SET @SUBCITYString = '' END----------------------------------------------------------------------------------------------------- DECLARE @SQLString AS Varchar(500)SET @SQLString = ' SELECT * FROM Table1 WHERE Table1.ID IS NOT NULL ' + @SUBCITYString + ' ORDER BY Column ASC' Execute (@SQLString) GO
However this is really cumbersome to create and is not fun debugging!
Does one of these ways have an advantage over the other? Or is there another way to do this?
Thank you!
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May 19, 2004
Title speaks for itself really.
Is it possible to write a stored proc with optional parameters?
For example consider the following SELECT
SELECT FLD1, FLD2 FLD3 FROM TBL1
I'd like to add optional parameters to that statement so that if they wanted to narrow down the results by providing criteria for some fields they could - but didn't have to.
Is this possible?
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Apr 25, 2007
I'm new to SQL Server, so if I'm doing anything stupid don't bemean :)I have a procedure that I use to return data based on optionalparameters. It works fine, except when the underlying data contains anull on one if the fields being searched.My system uses a default wildcard for all parameters, so this excludessuch records. I need a way to add in " OR fldName IS NULL " where theparameter is empty or '%'. I've looked at using CASE WHEN, but itdoesnt seem to like SQL Keywords being part of the WHEN clause.I'd hate to have to resort to executing concatonated strings made fromIF and ELSE statements. Just too messy and not at all pretty!Any Ideas? Here's what I've got:ALTER PROCEDURE [dbo].[procFindUnits]@strUnitIDnvarchar = '%',@strProjectNamenvarchar = '%',@strAddressnvarchar = '%',@strTenancynvarchar = '%',@strTenurenvarchar = '%'ASBEGINSET NOCOUNT ON;SELECTtblUnits.strUnitID,tblProjects.strProjectName,qryAddresses.Address_OneLine,lkpTenancyTypes.strTenancyType,lkpTenureTypes.strTenureTypeFROM tblUnits INNER JOINtblProjects ON tblUnits.intProjectID = tblProjects.intProjectIDLEFT OUTER JOINlkpTenancyTypes ON tblUnits.intTenancyType =lkpTenancyTypes.intTenancyType LEFT OUTER JOINlkpTenureTypes ON tblUnits.intTenureType =lkpTenureTypes.intTenureTypeID LEFT OUTER JOINqryAddresses ON tblUnits.strUnitID = qryAddresses.strUnitIDWHERE(tblUnits.strUnitID LIKE @strUnitID)AND (tblProjects.strProjectName LIKE @strProjectName)AND (qryAddresses.Address_OneLine LIKE @strAddress)AND (lkpTenancyTypes.strTenancyType LIKE @strTenancy)AND (lkpTenureTypes.strTenureType LIKE @strTenure)END
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Oct 2, 2007
How do I specify optional parameters when writing CLR based Stored Procedures in C#?
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Jan 7, 2008
Hi all,
Can anyone please tell me what is the best way to handle optional parameters in a stored procedure which will ensure a good execution plan? I ask this as I have to create a stored procedure with six optional parameters and I'm getting a little concerned that, apart from the parameter issue, I'm going to have a lot of if else statements. Is there an easy way of doing all this?
Thanks
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Nov 30, 2006
Hi,
Is it possible to create optional parameters in Report Builder?
An *ordinary* parameter is created by marking a filter expression as "prompted". At run-time, the user will be asked to provide a value for this parameter (or accept a default value if it is available). This works fine. What I want is to let the user choose whether to provide a value, or leave the parameter empty. In latter case, the reports should not take the parameter into account and display all available data.
Example: I have a list of products grouped by the name of the supplier. I want users to be able to see the entire list, or narrow it down to one supplier only. So I create a free text parameter that will contain a part of the supplier's name. It works ok, but if parameter is left blank, or set to NULL, the report will display no data (all products always have their suppliers).
I tried to create a filter formula to check for empty value and bypass the filter if necessary, but the formula only allows me to use the parameter expression once. So I cannot check for empty value and apply the filter in the same expression.
As a last resort, I used the following workaround: created a new formula named "Enter 'ALL' to see all suppliers" that would return text constant "ALL". I then added another prompted filter expression for this field and grouped it with my supplier prompt using "Any of" group. User is now able to choose a supplier, or enter "ALL" to the second prompt field. This clumsy approach actually works, but then another problem emerges - although I mark both filter fields as Prompted, the Report Builder will forget this flag for one of the fields when the report is reopened. I think it could be a bug (we use SQL2005 SP1)
Anyway, it'd be nice if I could create an optional parameter as one expression, not two. Is there any way to do that?
TIA
Denis
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Oct 12, 2006
Everyone,I have an application that pulls a list of employees into a web form. I use the same stored procedure to search for employees by various demographic characteristics, and have set all of these search parameters to be optional in the stored procedure.Everything works fine when I pull the entire list (without declaring any select parameters). However, on my Search page, I have declared a number of SelectParameter (ControlParameters, to be specific) objects and mapped each one to its respective control (text boxes and a checkbox). When I attempt a search, the SqlDataSource does not select any records unless I specify an argument for ALL of the search parameters. If I omit even a single search value, the page just posts back and does not pull any information from the database. I have verified with SQL Profiler that it is not attempting to hit the database.I have experimented with various declarations in the ControlParameter object, including the DefaultValue and ConvertEmptyStringToNull items. If I specify a non-empty string as a DefaultValue for all of the parameters, it will perform the query, but it does not query if I use an empty string as a default value - unless my user specifies a value in the form. Any ideas?ThanksTim
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Mar 29, 2007
Hi, I want to write a StoredProcedure with one optional input parameter of Date and when it is missing I want current date to be used.
I have written the following StoredProcedure, but getdate function doesn`t work. If I replace it with a constant date, it works.
ALTER PROCEDURE [dbo].[LinksFees_Record]
@Date datetime = getdate
AS
INSERT INTO LinkSearchFees
(LinkID, Price, [Date])
SELECT ID AS LinkID, SearchDayFee AS Price, @Date
FROM Links
WHERE (SearchDayFee > 0)
RETURN
When I call the StoredProcedure the following exception occur: Conversion failed when converting datetime from character string.
How can I fix it?
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May 18, 2008
Hi I want to give the user the ability to search based on a number of criteria, however i do not know how to build my statement properly this is what i have so far;
ALTER PROCEDURE [dbo].[stream_StoreFind]
-- Add the parameters for the stored procedure here
@StoreName varchar(250),@subCategoryID INT
AS
SELECT Stores.StoreName ,StoreCategories.storeIDFROM Stores INNER JOIN
StoreCategoriesON
Stores.storeID = StoreCategories.storeID INNER JOIN
SubCategories ON
StoreCategories.subCategoryID = SubCategories.subCategoryID WHERE
My problem is how will i pass the parameters into the statement, taking into fact that sometimes they may be optional. Thank you
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Dec 3, 2003
I have a stored procedure that updates about a dozen rows.
I have some overloaded functions that I should update different combinations of the rows - 1 function might update 3 rows, another 7 rows.
Do I have to write a stored procedure for each function or I can I handle it in the Stored Procedure. I realise I can have default values but I the default values could overwrite actual data if the values are not supplied but have been previously written.
Many thanks for any guidance.
Simon
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Jul 23, 2005
In which system table the information about the optional parameters passed to stored procedure are stored.I know about the tbl_columns and all that stuff. From where can i can come to know the parameter is mandatory or optional.--Message posted via http://www.sqlmonster.com
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Jul 5, 2007
Please i have lots of reports, i would like to pass parameters, i may pass or i will not pass.
but all of my reports are using stored procs from sql server database.
please guys can some one give me an idea how can i have optional parameters defined in the stored procedure.
in the reports layout collections property where i have to specify the parameters need to run the report there how can i define. wether it is optional of required parameter.
i see the parameters collections object there are hidden, pass null or pass a default value or pass the info via query etc.
please help thank you very much for the information.
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Jun 14, 2007
Hi friends,
I am developing reports using SQL Server 2005 Reporting service
I want to pass optional parameters to Report using dropdown
I filled dataset using EmpId and EmpName. and assigned this dataset to
query the values.
I checked properties for Report Parameters of Allow Null, Allow Blank values
Even i checked this properties, it enforces me to Enter some value for dropdown while running or previewing the report
I don't want to enforce the user that value must be selected.
In short, How we can able to pass multiple parameters which are not mandatory.
Pls reply me ASAP
Any suggestion is appreciated
Thanks in Advance.
Regards
Suds
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Mar 14, 2007
Hi All,
Is there any way to make Multivalue parameter ( list parameter) in Report builder as optional ?
I was able to achieve optional functionalitiy for parameter is single value but not able to with respect to multivalue parameters
An early response is highly appreciated
Thanks
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Sep 15, 2005
I've created a search page in my asp.net app that allows the user to enter optional parameters to narrow down the result set. It looks something like:Find all parts where: manuafacturer: <dropdownlist>ANY | manufacturer 1 |... </dropdownlist> model: <dropdownlist>ANY | model 1 |... </dropdownlist> cost: between <textbox> and <textbox> dollarsCurrently I create the SQL command on the fly building the WHERE based on what the user selects. For example if in the form above they select manufacturer = manufacturer1 model = ANY cost = between 10 and 15the WHERE string is ... WHERE manufacturer='manufacturer1' AND cost BETWEEN 10 AND 15Since the user doesn't care about model I leave it out of the WHERE. OK so here is my question. I want to move my queries to strored procedures however I'm not sure how to create the query since it changes based on what the user enters. Using the example above I'm assuming I can create one query with 4 parameters however what value would I use for ANY? parameter1 (manufacturer) = "manufacturer1" parameter2 (model) = ??? parameter3 (price low) = 10 parameter4 (proce high) = 15I see there is an ANY operator in T-SQL but it doesn't look like the right thing to use. Should I use LIKE '%'? Seems that using LIKE would result in addition overhead.ThanksSimon
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Jan 12, 2008
I have the following stored procedure:
Code Block
CREATE PROCEDURE udsp_td_queryowner
@state varchar(10) = NULL,
@businesstype varchar(20) = NULL,
@size int = NULL,
@sortorder varchar(20) = 'state'
AS
SELECT gl_t.state AS [State],
gl_t.business_type AS [Business Type],
gl_t.lowsize AS [Low Size],
gl_t.highsize AS [High Size],
e.InternetAddress AS [Owner]
FROM gl_territory gl_t JOIN employee e ON gl_t.employeenumber = e.EmployeeNumber
WHERE state = COALESCE(@state, state) AND
business_type = COALESCE(@businesstype, business_type) AND
COALESCE(@size, lowsize, highsize) between lowsize AND highsize
ORDER BY CASE WHEN @sortorder = 'state' THEN gl_t.state
WHEN @sortorder = 'business type' THEN gl_t.business_type
WHEN @sortorder = 'owner' THEN RTRIM(e.FirstName) + ' ' + RTRIM(e.LastName)
END ASC,
CASE WHEN @sortorder = 'low size' THEN gl_t.lowsize
WHEN @sortorder = 'high size' THEN gl_t.highsize
END ASC,
CASE WHEN @sortorder = 'statedesc' THEN gl_t.state
WHEN @sortorder = 'business typedesc' THEN gl_t.business_type
WHEN @sortorder = 'ownerdesc' THEN RTRIM(e.FirstName) + ' ' + RTRIM(e.LastName)
END DESC,
CASE WHEN @sortorder = 'low sizedesc' THEN gl_t.lowsize
WHEN @sortorder = 'high sizedesc' THEN gl_t.highsize
END DESC
What it allows me to do is enter in any number of the variables when running the stored procedure. For example, EXECUTE udsp_td_queryowner @state = 'IA' would give me everything in the table in the state of IA regardless of the other field values. Likewise, if I ran EXECUTE udsp_td_queryowner @state = 'KY', @size = 15 it would return the records that are in KY and the size of 15 is in the range of the low and high value.
If I run the first example in Query Analyzer I get 53 records from the data I have. It returns every record that has IA as the state. I run the same thing in Reporting Services and all I get is 3 records. Just the 3 records for the state of IA where the business type is either null or blank (I can't tell.) If I allow all of the variables to accept Nulls then it returns the correct data. However, I would like to find a better alternative because when the report is run it returns all of the records in the table initially and if they user wants to enter in any parameters they have to toggle off the null box for the corresponding paramter.
Any ideas?
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Feb 1, 2006
I have discovered some shortcomings in the way inline table valued function parameters are treated in the OLEDB datasource. You can select the user designed function ine the Generic Query Builder and test it with the required parameters. However when you attempt to set up the parameters for the result ing SQL Command Text you get and error message to the effect that the parameters cannot be retrieved from the datasource. Once again this is disappointing because Report Services seems to deal with the parameters perfectly well.
Dick Campbell
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Dec 11, 2007
hi, please someone can help me. I get error 0x80040E14L // The command contained one or more errors. I think that the error is in the sql update command.
this is my code:
HRESULT hr = NOERROR;
IDBCreateCommand * pIDBCrtCmd = NULL;
ICommandText * pICmdText = NULL;
IRowset * pIRowset = NULL;
ICommandPrepare * pICmdPrepare = NULL;
ICommandWithParameters * pICmdWParams = NULL;
ULONG ulNumCols;
IColumnsInfo * pIColumnsInfo = NULL;
LONG lNumCols;
IAccessor * pIAccessor = NULL;
ULONG cParams;
DBPARAMINFO * rgParamInfo = NULL;
OLECHAR * pNamesBuffer = NULL;
ULONG ulNumRowsRetrieved;
HROW hRows[5];
HROW * pRows = &hRows[0];
BYTE * pData = NULL;
DBCOLUMNINFO * pDBColumnInfo = NULL;
WCHAR * pStringsBuffer = NULL;
DBBINDING * prgBinding = NULL;
DBBINDING rgBindings[2];
ULONG cbRowSize;
DBPARAMS params;
HACCESSOR hAccessor;
hr = m_pIDBCreateSession->CreateSession(NULL,IID_IDBCreateCommand,(IUnknown**)&pIDBCrtCmd);
if (FAILED(hr))
goto Exit;
//IID_ICommandWithParameters
hr = pIDBCrtCmd->CreateCommand(NULL,IID_ICommandWithParameters, (IUnknown**)&pICmdWParams);
if (FAILED(hr))
goto Exit;
hr = pICmdWParams->QueryInterface( IID_ICommandText,(void**)&pICmdText);
if (FAILED(hr))
goto Exit;
hr = pICmdWParams->QueryInterface( IID_ICommandPrepare,(void**)&pICmdPrepare);
if (FAILED(hr))
goto Exit;
LPCTSTR wSQLString = OLESTR("UPDATE Pendientes SET Pendiente = ? WHERE IDAnimal = ?");
hr = pICmdText->SetCommandText( DBGUID_DBSQL,wSQLString);
if (FAILED(hr))
goto Exit;
pICmdPrepare->Prepare(1);
if (FAILED(hr))
goto Exit;
pICmdWParams->GetParameterInfo(&cParams, &rgParamInfo, &pNamesBuffer);
hr = pICmdText->QueryInterface( IID_IAccessor, (void**)&pIAccessor);
if (FAILED(hr))
goto Exit;
rgBindings[0].iOrdinal = 1;
rgBindings[0].obStatus = 0;
rgBindings[0].obLength = rgBindings[0].obStatus + sizeof(DBSTATUS);
rgBindings[0].obValue = rgBindings[0].obLength + sizeof(ULONG);
rgBindings[0].pTypeInfo = NULL;
rgBindings[0].pObject = NULL;
rgBindings[0].pBindExt = NULL;
rgBindings[0].dwPart = DBPART_VALUE | DBPART_STATUS | DBPART_LENGTH;
rgBindings[0].dwMemOwner = DBMEMOWNER_CLIENTOWNED;
rgBindings[0].eParamIO = DBPARAMIO_INPUT;
rgBindings[0].cbMaxLen = sizeof(int);
rgBindings[0].dwFlags = 0;
rgBindings[0].wType = DBTYPE_I4;
rgBindings[0].bPrecision = 0;
rgBindings[0].bScale = 0;
rgBindings[1].iOrdinal = 2;
rgBindings[1].obStatus = rgBindings[0].obValue + rgBindings[0].cbMaxLen;;
rgBindings[1].obLength = rgBindings[1].obStatus + sizeof(DBSTATUS);
rgBindings[1].obValue = rgBindings[1].obLength + sizeof(ULONG);
rgBindings[1].pTypeInfo = NULL;
rgBindings[1].pObject = NULL;
rgBindings[1].pBindExt = NULL;
rgBindings[1].dwPart = DBPART_VALUE | DBPART_STATUS | DBPART_LENGTH;
rgBindings[1].dwMemOwner = DBMEMOWNER_CLIENTOWNED;
rgBindings[1].eParamIO = DBPARAMIO_INPUT;
rgBindings[1].cbMaxLen = 8;
rgBindings[1].dwFlags = 0;
rgBindings[1].wType = DBTYPE_I8;
rgBindings[1].bPrecision = 0;
rgBindings[1].bScale = 0;
cbRowSize = rgBindings[1].obValue + rgBindings[1].cbMaxLen;
hr = pIAccessor->CreateAccessor(DBACCESSOR_PARAMETERDATA,2,rgBindings,cbRowSize,&hAccessor,NULL);
if (FAILED(hr))
goto Exit;
pData = (BYTE*) malloc(cbRowSize);
if(!(pData))
{
hr = E_OUTOFMEMORY;
goto Exit;
}
memset(pData,0,cbRowSize);
*(DBSTATUS*)(pData + rgBindings[0].obStatus) = DBSTATUS_S_OK;
*(int*)(pData + rgBindings[0].obValue) = 9;
*(ULONG*)(pData + rgBindings[0].obLength) = 8;
*(DBSTATUS*)(pData + rgBindings[1].obStatus) = DBSTATUS_S_OK;
*(int*)(pData + rgBindings[1].obValue) = 0;
*(ULONG*)(pData + rgBindings[1].obLength) = 4;
params.pData = pData;
params.cParamSets = 1;
params.hAccessor = hAccessor;
hr = pICmdText->Execute(NULL, IID_NULL,¶ms,&lNumCols,NULL);
if (FAILED(hr))
goto Exit;
Exit:...
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May 11, 2007
Hi,
Firtsly - I am new to SSIS if my approach could be improved then I welcome suggestions.
Scenario: I have a large SSIS package that consolidates / summarizes work week information from several data sources. Currently each data flow task in the control flow calculates the from and to date that is filtered on, for example:
DECLARE @FromDT AS DATETIME
SET @FromDT = CAST(FLOOR( CAST( DATEADD(D, -7, GETDATE()) AS FLOAT ) ) AS DATETIME)
DECLARE @ToDT AS DATETIME
SET @ToDT = CAST(FLOOR( CAST( GETDATE() AS FLOAT ) ) AS DATETIME)
I would like to remove these statements that appear in most steps and replace them with a global variable that is used throughout the package. This statement would only appear once & it would make the package much easier to run after failure etc.
Problem: I am using Data Reader Source with the 'SQLCommand' property specified. It looks like parameters are only supported if an OleDB connection is used?
So I switched to an OleDB connection and no parameters are recognised in the string - a forum search reveals that parameters in sub queries are not always found properly. The solution to this problem appears to be, to set 'Bypass Prepare' to True but this is a property for the Execute SQL task, not the Data Flow Task source.
Questions:
Does the Data Reader Source control from Data Flow Source toolbox section support parameters?
Can anyone suggest a fix to the OleDB Source issue with Parameters?
Is there a better way to solve my problem e.g. Using Execute SQL Task instead of Data Flow tasks etc
Example SQL:
This SQL is an example of the SQL for the OleDB Data Source (within a Data Flow task)
------------------------------
--RADIUS LOGINS
------------------------------
DECLARE @FromDT AS DATETIME
SET @FromDT = CAST(FLOOR( CAST( DATEADD(D, -7, GETDATE()) AS FLOAT ) ) AS DATETIME)
DECLARE @ToDT AS DATETIME
SET @ToDT = CAST(FLOOR( CAST( GETDATE() AS FLOAT ) ) AS DATETIME)
DECLARE @Attempts AS BIGINT
SET @Attempts =
(SELECT COUNT(*)
FROM dbo.Radius_Login_Records
WHERE LoggedAt BETWEEN @FromDT AND @ToDT)
DECLARE @Failures AS BIGINT
SET @Failures =
(SELECT COUNT(*)
FROM dbo.Radius_Login_Records
WHERE LoggedAt BETWEEN @FromDT AND @ToDT
AND Authen_Failure_Code IS NOT NULL)
DECLARE @Successes AS BIGINT
SET @Successes = @Attempts - @Failures
DECLARE @OcaV1Hits AS BIGINT
SET @OcaV1Hits = (SELECT COUNT(DISTINCT LoginName)
FROM dbo.Radius_Login_Records
WHERE LoggedAt BETWEEN
@FromDT AND @ToDT
AND EAPTypeID = 25)
DECLARE @OcaV2Hits AS BIGINT
SET @OcaV2Hits = (SELECT COUNT(DISTINCT LoginName) AS OcaV2Hits
FROM dbo.Radius_Login_Records
WHERE LoggedAt BETWEEN
@FromDT AND @ToDT
AND EAPTypeID = 13)
SELECT
@Attempts AS ConnectionAttempts,
@Failures AS ConnectionFailures,
(CAST(@Successes AS DECIMAL(38,2)) / CAST(@Attempts AS FLOAT) * 100) AS SuccessRate,
@OcaV1Hits AS OcaV1Hits,
@OcaV2Hits AS OcaV2Hits
Please remember, I'm new to SSIS - so be detailed in your response. Thanks for your help!
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Jan 9, 2007
Hi there,
In order to prevent lookup errors in a lookup transformation, I've decided to go for an OleDb Command Transformation.
This transformation should check the lookup and, if it turns out to be null, ir returns a dummy value. Otherwise, it would return the lookup value.
This should be done by doing something like this:
select coalesce( (select ID_Table2 from ID_Table2 where FK_Table1 = ?), 0)
suposing Table2 has an atribute called "FK_Table1" that should match a column in the data flow.
Now, such command result in this message:
"An OLE DB record is available. Source "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Syntax eror, permission violation, or other nonspecific error".
But, it I remove the coalesce and type the following command:
select ID_Table2 from ID_Table2 where FK_Table1 = ?
It presents me no errors and allows me to continue.
Did i did anything wrong or is this something that is not possible to be done?
I know i have the option to use a script task to do this operation, but that would turn the maintenance process a little more difficult.
Otherwise, i know i could also re-direct the error from the lookup transformation and handle it. Though, my package has about 10 lookups and that would turn my package a lot more complex than
Thanks in advance
Best Regards
André Santana
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Mar 14, 2008
Hello All,
I understand that the parser is having issues parsing my second command but I was wonder if anyone had stumbled on a work around for this:
-- OLEDB Source has no problem with this:
SELECT *
FROM some_table
where
last_update_dt = ?
-- OLEDB Source errors on this:
SELECT *
FROM some_table
where
Convert( char(12), last_update_dt, 112 ) = Convert( char(12), Cast( ? as DateTime), 112 )
The first SQL statement won't return the desired rows because of the wonderful time stamp, the second works well but the provider won't parse it. I have used the "SQL command from variable" to work around this but we have some tables with 200+ columns, so the only way to use the "SQL command from variable" is to do a select *, which I'm trying to avoid, for both performance reasons and company standards.
Any thoughts?
Thanks,
Raymond
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Oct 31, 2007
I have a stored proc with 28 commmands but only 24 are loaded. If I move the parameters around the ones that didn't show are visible and the ones after the 24th parameter don't show up. Is there some sort of limit on parameters for OLEDB commands that execute stored procs in the exec procname @p = ? construct?
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Feb 2, 2006
Hi,
Does anyone know if the VisualFoxPro 9.0 OLEDB driver supports parameters? Trying to pass parameterised queries from SSIS results in the error reported below, which implies it does support parameters, but that SSIS is not calling the driver properly somehow.
Regards,
Richard
-----------------------------------------------
Error MsgBox:
TITLE: Microsoft Visual Studio
------------------------------
Parameters cannot be extracted from the SQL command. The provider might not help to parse parameter information from the command. In that case, use the "SQL command from variable" access mode, in which the entire SQL command is stored in a variable.
------------------------------
ADDITIONAL INFORMATION:
Provider cannot derive parameter information and SetParameterInfo has not been called. (Microsoft OLE DB Provider for Visual FoxPro)
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