Question : How to use the Switch case in the Report Expression effectively

Hi Experts,

Explanation of the Logic : I have used 4 tables and only two columns
1. Meter_Point_Reference_Number
2. MPO_REFERENCE
Since , i have to use the same column names and bind to the report dataset , i have used the alias names for these columns and used a switch case in the report exp[ression. The stored procedure is 100% working fine , but there is a problem with the switch case. I get an error message like this(#error) in the report expression and i don't know the message and i cannot even debug either . please find the switch case and the Stored procedure logic here under , correct my switch case or if i have to write a custom code , please help me with the code as I am poor at writing custom code. Ultimately , please provide me the solution.

Switch Case used in the Report Expression :
=Switch(
Parameters!Inv_Type_Code.Value = "AWI",
Fields!MPRN_AWI.Value,
Parameters!Inv_Type_Code.Value = "MAV",
Fields!MPRN_MAV.Value,
Parameters!Inv_Type_Code.Value = "MFV",
Fields!MPRN_MFV.Value,
Parameters!Inv_Type_Code.Value = "MRV",
Fields!MPRN_MRV.Value,
Parameters!Inv_Type_Code.Value = "MRP",
Fields!MPRN_MRP.Value,
Parameters!Inv_Type_Code.Value = "MFR",
Fields!MPRN_MFR.Value,
Parameters!Inv_Type_Code.Value = "MLV",
Fields!MPRN_MLV.Value
)

Stored Procedure Logic :
IF(@Inv_Type_Code = 'AWI') then
BEGIN
Select
      Meter_Point_Reference_Number as MPRN_AWI from METERING_JOB_DETAILS
WHERE INV_NUMBER = @INV_nUMBER
END

ELSE IF @Inv_Type_Code IN( 'MAV','MFV','MRV')
BEGIN
Select
MPO_REFERENCE AS MPRN_MAV,
MPO_REFERENCE AS MPRN_MFV,
MPO_REFERENCE AS MPRN_MRV
from METERING_BACKING_ADJUSTMENT_CHARGE_ITEM
WHERE INV_NUMBER = @INV_nUMBER
END

ELSE IF @Inv_Type_Code IN ('MFR', 'MLV')
BEGIN
Select
MPO_REFERENCE AS MPRN_MFR,
       MPO_REFERENCE AS MPRN_MLV
       from METERING_BACKING_STANDARD_CHARGE
WHERE INV_NUMBER = @INV_nUMBER
END

ELSE IF(@Inv_Type_Code = 'MRP')
BEGIN
Select
MPO_REFERENCE AS MPRN_MRP from METERING_NPD_DATA
WHERE INV_NUMBER = @INV_nUMBER
END

Regards,

Sreekanth.

Answer : How to use the Switch case in the Report Expression effectively

Hello Sreekanth,

Same issue as with your previous version: the stored proc is not always returning the same (number of) fields...

See attached snippet for an attempt to get it right. I'm applying the same logic as I did previously.

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CREATE PROCEDURE [dbo].[SP_SV_Exception_Report]
(
 @Inv_Type_Code varchar(5),
 @Inv_Number numeric
 )  
AS
BEGIN


     DECLARE @Inv_Type_ID VARCHAR(5)
     
  SET @Inv_Type_ID  = (SELECT Inv_Type_ID  FROM INVOICE_TYPE  WHERE Inv_Type_Code= @Inv_Type_Code )  

 IF(@Inv_Type_Code  = 'AWI')
BEGIN
             Select
                   INV_TYPE_DESC,
                   INV.INV_NUMBER ,
                   INV_TAX_POINT_DATE,
                   Meter_Point_Reference_Number as TheValue, @Inv_Type_Code as InvTypeCode,
                   GENERALEXCEPTION  from METERING_JOB_DETAILS MJD INNER JOIN INVOICE INV  
            ON MJD.INV_NUMBER = INV.INV_NUMBER
            INNER JOIN INVOICE_TYPE ITP ON ITP.INV_TYPE_ID = INV.INV_TYPE_ID
            WHERE
           
             INV.INV_TYPE_ID = @Inv_Type_ID
            AND MJD.INV_NUMBER = @Inv_Number
            AND GENERALEXCEPTION IS NOT NULL
            ORDER BY INV_TAX_POINT_DATE
END

ELSE IF @Inv_Type_Code  IN(  'MAV','MFV','MRV')
BEGIN
             Select
                   INV_TYPE_DESC,
                   INV.INV_NUMBER ,
                   INV_TAX_POINT_DATE,
                   MPO_REFERENCE AS TheValue, @Inv_Type_Code as InvTypeCode,
                   GENERALEXCEPTION  from METERING_BACKING_ADJUSTMENT_CHARGE_ITEM MBACI
    INNER JOIN METERING_BACKING_ADJUSTMENT MBA
        ON MBA.METERING_BACKING_ADJUSTMENT_ID = MBACI.METERING_BACKING_ADJUSTMENT_ID
    INNER JOIN INVOICE INV  
            ON MBA.AREA_INVOICE_NUMBER = INV.INV_NUMBER  
            INNER JOIN INVOICE_TYPE ITP ON ITP.INV_TYPE_ID = INV.INV_TYPE_ID                
            WHERE
             INV.INV_TYPE_ID = @Inv_Type_ID
            AND MBA.AREA_INVOICE_NUMBER = @Inv_Number
            AND GENERALEXCEPTION IS NOT NULL
            ORDER BY INV_TAX_POINT_DATE
END

ELSE IF @Inv_Type_Code IN ('MFR', 'MLV')
BEGIN
       Select
              INV_TYPE_DESC,
              INV.INV_NUMBER ,
              INV_TAX_POINT_DATE,
              MPO_REFERENCE AS TheValue, @Inv_Type_Code as InvTypeCode,
              GENERAL_EXCEPTION from  METERING_BACKING_STANDARD_CHARGE MBSC INNER JOIN  METERING_BACKING_STANDARD_CHARGE_ITEM MBSCI
        ON MBSC.METERING_BACKING_STANDARD_CHARGE_ID = MBSCI.METERING_BACKING_STANDARD_CHARGE_ID
        INNER JOIN INVOICE INV ON INV.INV_NUMBER  = MBSC.AREA_INVOICE_NUMBER
        INNER JOIN INVOICE_TYPE ITP ON ITP.INV_TYPE_ID = INV.INV_TYPE_ID  
          WHERE
          INV.INV_TYPE_ID = @Inv_Type_ID
            AND MBSC.AREA_INVOICE_NUMBER = @Inv_Number
            AND GENERAL_EXCEPTION IS NOT NULL
            ORDER BY INV_TAX_POINT_DATE
END


ELSE IF(@Inv_Type_Code  = 'MRP')
BEGIN
             Select
                    INV_TYPE_DESC,
                    INV.INV_NUMBER,
                    INV_TAX_POINT_DATE,
                    MPO_REFERENCE AS TheValue, @Inv_Type_Code as InvTypeCode,
                    GENERALEXCEPTION  from METERING_NPD_DATA MND INNER JOIN INVOICE INV  
            ON MND.AREA_INVOICE_NUMBER = INV.INV_NUMBER
            INNER JOIN INVOICE_TYPE ITP ON ITP.INV_TYPE_ID = INV.INV_TYPE_ID  
            WHERE
             INV.INV_TYPE_ID = @Inv_Type_ID
            AND MND.AREA_INVOICE_NUMBER = @Inv_Number
            AND GENERALEXCEPTION IS NOT NULL
            ORDER BY INV_TAX_POINT_DATE
END

END

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