Extract number from string

oteixeira · #1 (**permalink**) 01-06-12, 12:35

Hello to all.

I'm new to sqlplus and trying to do the following:
I have some strings that may be like 'ABC*9497' or 'ABCD*9497'. How can i extract just the numeric part (9497)? I've been trying to use TO_NUMBER function in a seriuos of formats but could not get it.
Can someone please give some help? The number of characters up to the asterisk can vary.
Thanks in advance for any kind help.
Octavio

anacedent · #2 (**permalink**) 01-06-12, 12:43

select substr('ABC*9497',(instr('ABC*9497','*')+1)) from dual;

SUBS
----
9497

oteixeira · #3 (**permalink**) 01-06-12, 12:48

Anacedent, thanks a million.
Octavio

Littlefoot · #4 (**permalink**) 01-07-12, 04:54

Or, using regular expressions:

Code:

SQL> with test as
  2    (select 'ABC*9497' col from dual union
  3     select 'ABCD*234' from dual
  4    )
  5  select col, regexp_substr(col, '\d+$') numbers_only
  6  from test;

COL      NUMBERS_ONLY
-------- --------------------------------
ABC*9497 9497
ABCD*234 234

SQL>

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