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; WITH CTE AS ( SELECT Sno, Comp, SubComp, LEFT (FromValue, PATINDEX( ' %[0-9]%' , FromValue)-1) As FromLetter, CAST( RIGHT (FromValue, LEN(FromValue) - (PATINDEX( ' %[0-9]%' , FromValue)-1)) as int ) As FromNumber, LEFT (ToValue, PATINDEX( ' %[0-9]' , ToValue)-1) As ToLetter, CAST( RIGHT (ToValue, LEN(ToValue) - (PATINDEX( ' %[0-9]%' , ToValue)-1)) as int ) As ToNumber SELECT Sno, Comp, SubComp, LEFT (SubComp, CASE WHEN CHARINDEX( ' to ' , SubComp) >; 0 THEN CHARINDEX( ' to ' , SubComp)-1 WHEN CHARINDEX( ' ,' , SubComp) >; 0 THEN CHARINDEX( ' ,' , SubComp)-1 ) FromValue, RIGHT (SubComp, CASE WHEN CHARINDEX( ' to ' , SubComp) > 0 THEN LEN(SubComp) - (CHARINDEX( ' to ' , SubComp) + 3 ) WHEN CHARINDEX( ' ,' , SubComp) > 0 THEN CHARINDEX( ' ,' , SubComp)-1 ) ToValue FROM T ) InnerQuery SELECT Sno, Comp, SubComp FROM CTE WHERE LEFT ( @Var , PATINDEX( ' %[0-9]%' , @Var )-1) BETWEEN FromLetter AND ToLetter AND CAST( RIGHT ( @Var , LEN( @Var ) - (PATINDEX( ' %[0-9]%' , @Var )-1)) as int ) BETWEEN FromNumber And ToNumber
this is my procedure ............
I am getting error ....
Quote:
"invalid length parameter passed to the left or substring function in sql server"

please help me... I cant really answer but I can tell you that it has to do with the -1 in the function, here is an article that im sure could really help you
http://www.sql-server-helper.com/error-messages/msg-536.aspx [ ^ ]
try it out, maybe it holds your answer This error is related to "LEFT" function used in your SP, the issue probably may be that the second parameter value is not returing a positive integer (Please Note : PATINDEX returns NULL value as well)
These links might help you further :
https://msdn.microsoft.com/en-IN/library/ms177601.aspx [ ^ ]
https://msdn.microsoft.com/en-us/library/ms188395.aspx [ ^ ]
First step : try removing -1 from "Left" function
i.e. instead of :
LEFT(FromValue, PATINDEX('%[0-9]%', FromValue)-1)
try this
LEFT(FromValue, PATINDEX('%[0-9]%', FromValue))


If this does not help

Try putting ISNULL check in "Left" function
i.e. LEFT(FromValue, ISNULL(PATINDEX('%[0-9]%', FromValue),0))

do the same for all the "Left" functions used in your SP.
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