How do I Pass a parameter to a SQL Component Task where the source SQL statement is also a variable

Question

Hi,
I have been tasked with making a complex package more generic.
To achieve this I need to pass a parameter to a SQL Component Task where the source SQL statement is also a variable.
So to help articulate my question further I have create a package and database as follows; -
USE [KWPlay]
GO
/****** Object: Table [dbo].[tblTest] Script Date: 05/14/2014 17:08:02 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[tblTest](
[ID] [bigint] IDENTITY(1,1) NOT NULL,
[Description] [nvarchar](50) NULL,
CONSTRAINT [PK_tblTest] PRIMARY KEY CLUSTERED
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
I populated this table with a single record.
I unit tested the SQL within SSMS as follows;
SELECT * FROM dbo.tblTest
Result; -
ID           
Description
1             
Happy
DECLARE @myParam NVARCHAR(100)
SET @myParam = 'Sad'
UPDATE dbo.tblTest SET [Description] = @myParam FROM dbo.tblTest WHERE ID = 1
SELECT * FROM dbo.tblTest
Result; -
ID   
Description
1    
Sad
Within the package I created two variables as follows; -
Name: strSQL
Scope: Package
Data Type: String
Value: UPDATE dbo.tblTest SET [Description] = @myParam FROM dbo.tblTest WHERE ID = 1
Name: strStatus
Scope: Package
Data Type: String
Value: Happy
I then created a single ‘Execute SQL Task’ component within the control flow as follows; -
However when I run the above package I get the following error; -
SSIS package "Package.dtsx" starting.
Error: 0xC002F210 at Execute SQL Task, Execute SQL Task: Executing the query "UPDATE dbo.tblTest SET [Description] = @myParam FR..." failed with the following error:
"Parameter name is unrecognized.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
Task failed: Execute SQL Task
Warning: 0x80019002 at Package: SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED. 
The Execution method succeeded, but the number of errors raised (1) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the
errors.
SSIS package "Package.dtsx" finished: Failure.
I also tried; - 
Name: strSQL
Scope: Package
Data Type: String
Value: UPDATE dbo.tblTest SET [Description] = ? FROM dbo.tblTest WHERE ID = 1
However I received the error; - 
SSIS package "Package.dtsx" starting.
Error: 0xC002F210 at Execute SQL Task, Execute SQL Task: Executing the query "UPDATE dbo.tblTest SET [Description] = ? FROM dbo...." failed with the following error: "Parameter name is unrecognized.". Possible failure reasons: Problems with
the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
Task failed: Execute SQL Task
Warning: 0x80019002 at Package: SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED.  The Execution method succeeded, but the number of errors raised (1) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches
the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.
SSIS package "Package.dtsx" finished: Failure.
Kind Regards,
Kieran.
Kieran Patrick Wood http://www.innovativebusinessintelligence.com http://uk.linkedin.com/in/kieranpatrickwood http://kieranwood.wordpress.com/

Answer 1

Tried; - 
Name: strSQL
Scope: Package
Data Type: String
Value: UPDATE dbo.tblTest SET [Description] = ? FROM dbo.tblTest WHERE ID = 1
and; - 
Result; - 
SSIS package "Package.dtsx" starting.
SSIS package "Package.dtsx" finished: Success.
Therefore the answer was to put the parameter number rather than the parameter name under the parameter mapping tab-> parameter name column. 
Kieran Patrick Wood http://www.innovativebusinessintelligence.com http://uk.linkedin.com/in/kieranpatrickwood http://kieranwood.wordpress.com/