Convert string with expression to decimal

Question

I have a table which has a column \'Faktor\' (varchar(50)) which contains expressions like:

1/3
2*9/5
0.567
0.23

No, I am searching a way t

Answer 1

too bad. In the expression all numbers are int datatype. So, its difficult to calculate and show the result in decimal.

Here is a sample, hope it will help-

declare @expr nvarchar(10)
set @expr='2*9/5'
declare @query varchar(800)

BEGIN TRY
    SELECT CAST(@expr as decimal(5,2))
END TRY
BEGIN CATCH
    SET @query='SELECT CAST('+@expr+'.0 as decimal(5,2))'
    EXECUTE(@query)
END CATCH