Require Query

Question

Hi I have a column called Name as folllows.
Name
WILLIAM A .JOSEPH
RANE SMITH
GEORGE, A LORDER
GLEN GROSS
WELLIAM C . SHAWNMy Requirement is
NAME                                        FIRST_NAME                        LAST_NAME
WILLIAM A .JOSEPH                    WILLIAM A                          JOSEPH
RANE SMITH                               RANE                                 SMITH
GEORGE A . LORDER                    GEORGE A                          LORDER
GLEN GROSS                               GREN                                 GROSS
WELLIAM C . SHAWN                    WELLIAM C                        SHAWNCan you please let me know how to delete those special character display the records as mentioned above.
Thanks.

Answer 1

Hi,
just an example:
with mydata(name) as
   SELECT 'WILLIAM A .JOSEPH' FROM DUAL UNION ALL
   SELECT 'RANE SMITH' FROM DUAL UNION ALL
   SELECT 'GEORGE, A LORDER' FROM DUAL UNION ALL
   SELECT 'GLEN GROSS' FROM DUAL UNION ALL
   SELECT 'WELLIAM C . SHAWN' FROM DUAL
-- this one replaces sequence of space, dot and commas with one single space
, corrected_data AS
   SELECT name, REGEXP_REPLACE(name,'[., ]+',' ') normalized_name
     FROM mydata
SELECT name
     , SUBSTR(normalized_name, 1, INSTR(normalized_name, ' ',-1)-1) AS first_name
     , SUBSTR(normalized_name, INSTR(normalized_name, ' ',-1)+1) AS last_name
  FROM corrected_data;
NAME                           FIRST_NAME                     LAST_NAME                    
WILLIAM A .JOSEPH              WILLIAM A                      JOSEPH                       
RANE SMITH                     RANE                           SMITH                        
GEORGE, A LORDER               GEORGE A                       LORDER                       
GLEN GROSS                     GLEN                           GROSS                        
WELLIAM C . SHAWN              WELLIAM C                      SHAWN                         Regards.
Al