Solved

Invalid length parameter passed to the RIGHT function

Posted on 2014-10-31
5
219 Views
Last Modified: 2014-10-31
Hello Guys,

I'm trying get processor information using the following query:

DECLARE @xp_msver TABLE (
    [idx] [int] NULL
    ,[c_name] [varchar](100) NULL
    ,[int_val] [float] NULL
    ,[c_val] [varchar](128) NULL
    )

INSERT INTO @xp_msver
EXEC ('[master]..[xp_msver]');;

WITH [ProcessorInfo]
AS (
    SELECT ([cpu_count] / [hyperthread_ratio]) AS [number_of_physical_cpus]
        ,CASE
            WHEN hyperthread_ratio = cpu_count
                THEN cpu_count
            ELSE (([cpu_count] - [hyperthread_ratio]) / ([cpu_count] / [hyperthread_ratio]))
            END AS [number_of_cores_per_cpu]
        ,CASE
            WHEN hyperthread_ratio = cpu_count
                THEN cpu_count
            ELSE ([cpu_count] / [hyperthread_ratio]) * (([cpu_count] - [hyperthread_ratio]) / ([cpu_count] / [hyperthread_ratio]))
            END AS [total_number_of_cores]
        ,[cpu_count] AS [number_of_virtual_cpus]
        ,(
            SELECT [c_val]
           FROM @xp_msver
            WHERE [c_name] = 'Platform'
            ) AS [cpu_category]
    FROM [sys].[dm_os_sys_info]
    )
SELECT [number_of_physical_cpus]
    ,[number_of_cores_per_cpu]
    ,[total_number_of_cores]
    ,[number_of_virtual_cpus]
    ,LTRIM(RIGHT([cpu_category], CHARINDEX('x', [cpu_category]) - 1)) AS [cpu_category]
FROM [ProcessorInfo]

Open in new window


It's working on some of the servers, but on some servers I'm getting the following error:

Msg 536, Level 16, State 2, Line 11
Invalid length parameter passed to the RIGHT function.

Kindly, look into this matter and reply as soon as possible.

Thank You
0
Comment
Question by:Abhinav Singh
  • 2
  • 2
5 Comments
 
LVL 65

Expert Comment

by:Jim Horn
ID: 40416456
>LTRIM(RIGHT([cpu_category], CHARINDEX('x', [cpu_category]) - 1))
If CHARINDEX('x', [cpu_category] returns a 0, then 0-1= -1, which is invalid for a RIGHT().
0
 

Author Comment

by:Abhinav Singh
ID: 40416463
Hello Jim,

Thanks for replying.
Can you please suggest an alternative for this?
Thanks again.
0
 
LVL 65

Expert Comment

by:Jim Horn
ID: 40416468
I'm not familiar with this query, but to avoid the error...

    ,CASE 
        WHEN CHARINDEX('x', [cpu_category]) < 1 THEN NULL
        ELSE LTRIM(RIGHT([cpu_category], CHARINDEX('x', [cpu_category]) - 1)) END AS [cpu_category]

Open in new window

0
 
LVL 69

Accepted Solution

by:
ScottPletcher earned 500 total points
ID: 40416477
...
SELECT [number_of_physical_cpus]
    ,[number_of_cores_per_cpu]
    ,[total_number_of_cores]
    ,[number_of_virtual_cpus]
    ,SUBSTRING(cpu_category, PATINDEX('%[0-9]%', cpu_category), 2) AS [cpu_category]
FROM [ProcessorInfo]
0
 

Author Comment

by:Abhinav Singh
ID: 40416483
Hello Jim,

Can you please be more specific as to where should I put this part part in my query?
I'm not able to figure out.
Sorry of any inconvenience.
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

JSON is being used more and more, besides XML, and you surely wanted to parse the data out into SQL instead of doing it in some Javascript. The below function in SQL Server can do the job for you, returning a quick table with the parsed data.
Slowly Changing Dimension Transformation component in data task flow is very useful for us to manage and control how data changes in SSIS.
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
Viewers will learn how to use the INSERT statement to insert data into their tables. It will also introduce the NULL statement, to show them what happens when no value is giving for any given column.

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now