To remove last '/' character

Question

I need to remove '/' character and string comes after it. I will give an example.
CREATE TABLE TAB (COL1 VARCHAR2(50));
INSERT INTO TAB VALUES ('hIA/SS/TTTT/FFFF');
INSERT INTO TAB VALUES ('hDFF/AA/S/AAAAAAAA');
I should remove the last '/' and string comes after it so when i query , i should get result as
hiA/SS/TTTT
hDFF/AA/S
Please help me

Answer 1

Hi,
Welcome to the forum!
Here's one way:
SELECT     col1    -- if wanted
,     REGEXP_REPLACE ( col1
                 , '/[^/]*$'
                 )     AS up_to_last_slash
FROM     tab
;Regular expressions can be very convenient, but they can also be slow. If performance is a problem, try this instead:
SELECT     col1    -- If wanted
,     NVL ( SUBSTR ( col1
                      , 1
                      , INSTR (col1, '/', -1) - 1
         , col1
         )                  AS up_to_last_slash
FROM     tab
;This is basically what Chris posted earlier, except that it returns col1 unchanged when col1 does not contain a '/'.
Thanks for posting the CREATE TABLE and INSERT statements; that's very helpful!
Edited by: Frank Kulash on Oct 8, 2012 7:32 AM