TSQL REPLACE Statement Help

Please have a look at link below as I believe it matches exactly what you want to do:

http://stackoverflow.com/questions/106206/fastest-way-to-remove-non-numeric-characters-from-a-varchar-in-sql-server

I'm severley limted in my tsql writing as u see. How would I throw the above into a patindex ?

I would use this to build the function and then do your select

Example here:
http://blog.sqlauthority.com/2008/10/14/sql-server-get-numeric-value-from-alpha-numeric-string-udf-for-get-numeric-numbers-only/

CREATE FUNCTION dbo.udf_GetNumeric
(@strAlphaNumeric VARCHAR(256))
RETURNS VARCHAR(256)
AS
BEGIN
DECLARE @intAlpha INT
SET @intAlpha = PATINDEX('%[^0-9]%', @strAlphaNumeric)
BEGIN
WHILE @intAlpha > 0
BEGIN
SET @strAlphaNumeric = STUFF(@strAlphaNumeric, @intAlpha, 1, '' )
SET @intAlpha = PATINDEX('%[^0-9]%', @strAlphaNumeric )
END
END
RETURN ISNULL(@strAlphaNumeric,0)
END
GO

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Then you could use the function in a statement like below with 2 assumptions:

1. MUST backup your table data before running the update like

SELECT  *  INTO dbo.CITIZENS_BACKUP FROM dbo.CITIZENS;
GO

2. MUST check the data type for CITIZENS.LNAM and if it is NOT like VARCHAR(256) then you must adapt the code function posted above to match your CITIZENS.LNAM data type.

update dbo.CITIZENS set LNAM = dbo.udf_GetNumeric(CITIZENS.LNAM)
from CITIZENS q
where CITIZENS.ID = q.ID;
go

you can also try like this.

WITH CTE 
     AS (SELECT *, 
                SUBSTRING(AlphaNumericData, N, 1) Sub_AlphaNumericData 
           FROM tblAlphanumeric t1 
                JOIN (SELECT NUMBER 
                        FROM MASTER..spt_values 
                       WHERE TYPE = 'p') Numbers(N) 
                  ON N BETWEEN 1 AND LEN(AlphaNumericData)), 
     CTE_1 
     AS (SELECT *, 
                CASE 
                  WHEN Sub_AlphaNumericData LIKE '[0-9]' THEN Sub_AlphaNumericData 
                  ELSE '' 
                END NUMBER 
           FROM CTE), 
     CTE1 
     AS (SELECT DISTINCT id, 
                         AlphaNumericData, 
                         ISNULL(STUFF((SELECT CONVERT(VARCHAR(5), NUMBER) 
                                         FROM CTE_1 t1 
                                        WHERE t1.id = t2.id 
                                          AND t1.NUMBER <> '' 
                                       FOR XML PATH('')), 1, 0, ''), '') Numbers 
           FROM CTE_1 t2) 
UPDATE t1 
   SET t1.AlphaNumericData = t2.Numbers 
  FROM tblAlphanumeric t1 
       JOIN CTE1 t2 
         ON t1.ID = t2.ID  

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Here is an example: http://sqlfiddle.com/#!3/e4a24/1

Sharath I'm sorry seems complex, how do I go about using the above with my column? Sorry I know I'm asking to be spoon fed. I'm no sql guy.

Post your table structure and some sample data.

Current out put: I have about 66K like below where CID number has alpha/numeric
I'm just looking to keep the Numeric part and discard the rest. The letters vary in the CID_NUMBER can b3 3 characters can be 12 characters.

Current:
ORDER_NUMBER         ORDER_YEAR     LAST_NAME      FIRST_NAME      CID_NUMBER
123                               2012                DIMI                 SAL                     AS-12-2713
124                               2013                MIMI                 PAT                     CI-12-2813
125                               2013                GIMI                 STEVE                  OC-12-2615
126                               2013                SIMI                  PETE                   MAS-126-2555
127                               2013                RIMI                  Jorge                  ADA-12809

What I need:
ORDER_NUMBER         ORDER_YEAR     LAST_NAME      FIRST_NAME      CID_NUMBER
123                               2012                DIMI                 SAL                     12-2713
124                               2013                MIMI                 PAT                     12-2813
125                               2013                GIMI                 STEVE                  12-2615
126                               2013                SIMI                  PETE                    126-2555
127                               2013                RIMI                  Jorge                 12809


Thxs

try this script. replace test with your actual table name.

	   
;WITH CTE 
     AS (SELECT *, 
                SUBSTRING(CID_NUMBER, N, 1) Sub_CID_NUMBER 
         FROM   test t1 
                JOIN (SELECT NUMBER 
                      FROM   MASTER..spt_values 
                      WHERE  TYPE = 'p') Numbers(N) 
                  ON N BETWEEN 1 AND LEN(CID_NUMBER)), 
     CTE_1 
     AS (SELECT *, 
                CASE 
                  WHEN Sub_CID_NUMBER LIKE '[0-9]' 
                        OR Sub_CID_NUMBER = '-' THEN Sub_CID_NUMBER 
                  ELSE '' 
                END NUMBER 
         FROM   CTE), 
     CTE1 
     AS (SELECT DISTINCT ORDER_NUMBER, 
                         CID_NUMBER, 
                         ISNULL(STUFF((SELECT CONVERT(VARCHAR(5), NUMBER) 
                                       FROM   CTE_1 t1 
                                       WHERE  t1.ORDER_NUMBER = t2.ORDER_NUMBER 
                                          AND t1.NUMBER <> '' 
                                       FOR XML PATH('')), 1, 0, ''), '') Numbers 
         FROM   CTE_1 t2) 
UPDATE t1 
SET    t1.CID_NUMBER = CASE 
                         WHEN LEFT(t2.Numbers, 1) = '-' THEN SUBSTRING(t2.Numbers, 2, LEN(t2.Numbers)) 
                         ELSE t2.Numbers 
                       END 
FROM   test t1 
       JOIN CTE1 t2 
         ON t1.ORDER_NUMBER = t2.ORDER_NUMBER 

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see this example: http://sqlfiddle.com/#!3/8c92a/1

Ok Sharath almost there getting the following error:
Msg 102, Level 15, State 1, Line 7
Incorrect syntax near ')'.
Msg 102, Level 15, State 1, Line 15
Incorrect syntax near ','.

SELECT *, 
                SUBSTRING(CI_NUMBER, N, 1) Sub_CI_NUMBER 
         FROM   CIVILIAN_2012
                JOIN (SELECT NUMBER 
                      FROM   MASTER..spt_values 
                      WHERE  TYPE = 'p') Numbers(N) 
                  ON N BETWEEN 1 AND LEN(CI_NUMBER)), 
     CTE_1 
     AS (SELECT *, 
                CASE 
                  WHEN Sub_CI_NUMBER LIKE '[0-9]' 
                        OR Sub_CI_NUMBER = '-' THEN Sub_CI_NUMBER 
                  ELSE '' 
                END NUMBER 
         FROM   CTE), 
     CTE1 
     AS (SELECT DISTINCT IA_LOG_NUMBER, 
                         CI_NUMBER, 
                         ISNULL(STUFF((SELECT CONVERT(VARCHAR(5), NUMBER) 
                                       FROM   CTE_1 t1 
                                       WHERE  t1.IA_LOG_NUMBER = t2.IA_LOG_NUMBER 
                                          AND t1.NUMBER <> '' 
                                       FOR XML PATH('')), 1, 0, ''), '') Numbers 
         FROM   CTE_1 t2) 
UPDATE t1 
SET    t1.CI_NUMBER = CASE 
                         WHEN LEFT(t2.Numbers, 1) = '-' THEN SUBSTRING(t2.Numbers, 2, LEN(t2.Numbers)) 
                         ELSE t2.Numbers 
                       END 
FROM   test t1 
       JOIN CTE1 t2 
         ON t1.IA_LOG_NUMBER = t2.IA_LOG_NUMBER 

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Thanks again Sharath