Problem in removing hardcoded values using temp table

First of all Wish u all Happy New Year. I have a problem in writing query. While executing my query I am getting an error.

Query:

select case 

when S.R1 = '6' then 5

when S.R1 =  '7' then 6

when S.R1 = '8' then 7

when S.R1 = '9' then 8

when S.R1 ='10' then 9 

else S.R1 end as Q

FROM [HelpService].[dbo].[help] s
-----------------------------------------------

SELECT [Source], [Score] 

INTO #Temp_Q

FROM [HelpDesk].[dbo].[Survey] 

WHERE [data_Source Name] = 'Text Data'

-----------------------------------------------

开发者_JAVA百科select CONVERT(REAL, a.[Dell Score]) as Q

FROM [HelpService].[dbo].[help] s

LEFT OUTER JOIN #CE_Temp_Q a on

s.[R1] = a.[Source] 

ERROR

Msg 8114, Level 16, State 5, Line 1

Error converting data type varchar to real.

What I am asked to do is I need to remove the hard coded values and need to write queries with a temp table.

Thanks in Advance, Shashra

Error converting data type varchar to real

This means one of your values contains somthing that isn't a Number.

For example the following works fine

SELECT convert(Real, '1')
UNION SELECT convert(Real, ' ')
UNION SELECT convert(Real, NULL)
UNION SELECT convert(Real, '123.123')
UNION SELECT convert(Real, '   456  ')

​ But either of the following will yield the same error you are getting

SELECT convert(Real, '   456  ')


SELECT CONVERT(Real, '1 2')

UPDATE

Sometimes its not so obvious what the problem values are

Try the following to find it

SELECT DISTINCT 
        a.[Dell Score]
FROM 
      [HelpService].[dbo].[help] s
      LEFT OUTER JOIN #CE_Temp_Q a on
      s.[R1] = a.[Source]

OR

  SELECT DISTINCT 
        a.[Dell Score],
        DATALENGTH (a.[Dell Score])
  FROM 
      [HelpService].[dbo].[help] s
      LEFT OUTER JOIN #CE_Temp_Q a on
      s.[R1] = a.[Source]

What does the following query return?

select a.[Dell Score]
FROM [HelpService].[dbo].[help] s
LEFT OUTER JOIN #CE_Temp_Q a on
s.[R1] = a.[Source] 
WHERE  a.[Dell Score] like '%[^0-9.]%'