|
Hi, I have a varchar column. The values are separated using a comma (,). For example, the column values are as follows:
I would like to extract the last value from each column. With respect to the above example, the output should be as follows:
I know that we should use substring function to do this, but I am not sure how I can find out the value after '-' in the reverse direction. Thanks in advance.
(comments are locked)
|
|
I found the solution for this problem. I used Substr and Instr functions. If we specificy position of occurrance of '-' as -1, the instr function will calculate the position in reverse direction.
(comments are locked)
|
|
select substr('P1-101-Part1-This is a part',instr('P1-101-Part1-This is a part','-',-1)+1) from dual
(comments are locked)
|
|
use regular expressions in oracle 10g and above .. here's the example with temp as ( select 'P1-101-Part1-This is a part' STR from dual UNION ALL select 'P2-101-Part2-This is a part number 2' STR from dual UNION ALL select 'P3-101-Part1.1-This is a sub part for part 1' STR from dual ) SELECT regexp_substr(str,'[^-]+$',1,1) STR from temp
(comments are locked)
|
|
use substr/instr functions for all versions of oracle.. here's the example with temp as ( select 'P1-101-Part1-This is a part' STR from dual UNION ALL select 'P2-101-Part2-This is a part number 2' STR from dual UNION ALL select 'P3-101-Part1.1-This is a sub part for part 1' STR from dual ) select substr(str, instr(str, '-', -1, 1)+1 ) STR from temp
(comments are locked)
|
