Trying to find epoch dates and convert them to dates

Question

I'm trying to find every epoch time in a string and convert them to a date. I have tried the below with no luck.
SELECT REGEXP_REPLACE('1315617396271 Impacting: CISCO SAN SWITCH1315617396271 Impacting: CISCO SAN SWITCH'
,'([[:digit:]]{10,10})',unixts_to_date('\1'))
FROM dual
Result
Error - ORA-01722: invalid number
I know the dates are good and the function works fine from the below test.
select unixts_to_date('1315617396') from dual
result
10 September 2011 01:16:36 AM
Any help with this would be much appreciated!

Answer 1

Hi,
I was not able to copy-and-paste your example due to unknown characters (which are displayed as squares on my Ubuntu laptop).
I modified them replacing those characters by spaces.
Maybe that won't totally fit your needs, or might behave differently on your system.
Anyway, I propose the following :Scott@my11g SQL>l
  1  with t as (
  2  select '1315617396  271 Impacting:  CISCO SAN SWITCH  1315617396  271 Impacting:  CISCO SAN SWITCH ' str from dual
  3  union all select '1315417396  123 Impacting:  CISCO SAN SWITCH  1315317396  123 Impacting:  CISCO SAN SWITCH ' from dual
  4  union all select 'I went to France from 1123456789 to 1234567890 and it was great !' from dual
  5  )
  6  ------ end of sample data ------
  7  select
  8       str
  9       ,listagg(strdt) within group (order by n) newstr
10  from (
11       select
12            str
13            ,n
14            ,regexp_replace(sstr,'(.*?)\d*$','\1') || (to_date('1970101','yyyymmdd') + regexp_substr(sstr,'\d{10}',1)/3600/24) strdt
15       from (
16            select
17                 str
18                 ,n
19                 ,regexp_substr(v.str,'.*?(\d{10}|$)',1,v.n) sstr
20            from (
21                 select t.str,
22                 m.column_value n
23                 from t
24                 ,table(cast(multiset(select level
25                                from dual
26                                connect by level <= regexp_count(t.str,'.*?\d{10}')+1) as sys.OdciNumberList)) m
27            ) v
28       )
29  )
30* group by str
Scott@my11g SQL>/
STR                                                NEWSTR
1315417396  123 Impacting:  CISCO SAN SWITCH  1315 06 June      2012 05:43:16 PM  123 Impacting:  CIS
317396  123 Impacting:  CISCO SAN SWITCH           CO SAN SWITCH  05 June      2012 01:56:36 PM  123
                                                   Impacting:  CISCO SAN SWITCH
1315617396  271 Impacting:  CISCO SAN SWITCH  1315 09 June      2012 01:16:36 AM  271 Impacting:  CIS
617396  271 Impacting:  CISCO SAN SWITCH           CO SAN SWITCH  09 June      2012 01:16:36 AM  271
                                                   Impacting:  CISCO SAN SWITCH
I went to France from 1123456789 to 1234567890 and I went to France from 07 May       2006 11:19:49 P
it was great !                                    M to 13 November  2009 11:31:30 PM and it was grea
                                                   t !