Extract substring from string

Hi,
Iu2019m reaching out to the experts in the forum for assistance with resolving a code issue in Universe Designer u2013 itu2019s not producing the expected result. The following are details, and steps taken:
Objective: To extract only the characters between #u2019s, i.e. u2013 Smith, John added comments on 12/1/11 V5M#0.25# this is a test. *NOTE* The characters before AND after the #u2019s varies.
Database u2013 Oracle 10g
Field type u2013 CLOB (DBAu2019s will not change) u2013 I created an object u201CDescriptionu201D= DBMS_LOB.SUBSTR("Oracle_Test_Unv". DESC, 4000,1) u2013 I also tried casting as a varchar2 and still the same result.
Object u2013 Code to extract the characters between #u2019s:
     CASE WHEN @Select(Oracle_Test_Unv\Description) LIKE '%V5M#%#%'
                         THEN DBMS_LOB.SUBSTR(@Select(Oracle_Test_Unv\Description),
                                DBMS_LOB.INSTR(@Select(Oracle_Test_Unv\Description), '#',1,1)+1,
                                      DBMS_LOB.INSTR(@Select(Oracle_Test_Unv\Description), '#',1,2) -
                                           DBMS_LOB.INSTR(@Select(Oracle_Test_Unv\Description), '#',1,1)-1)
                                                ELSE '0'
                                                      END
Current Result: Smith, John added comments on 12/1/11 V5M#0.25
Thanks in advance for your help!

Apologies, I forgot to include the expected result. Please see below:
Expected result: 0.25
Thanks again!

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How to extract substring from string... how to find the index?

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i would like to extract the substring from string4 to stringK-1
where stringK and string3 are pre defined strings (ie, i know exactly what stringK and string3 is).
is there a function to extract the substring from string4 to stringK-1
or is there a function i can use to determine the index of the end of string4 and the start of stringK?
thks!

If your substrings are seperated by a space (or by any other character that isn't used in any of the substrings), you could use something like StringTokenizer.
If you wanna get real fancy, use the split method of String.

Need a way to extract substring from string in oracle

Hi all,
I have one requirement related to extracting string from a paramater.
suppose the string may like this in various format
string:= 'This my string <Rid//problem/123456>'
or
string:= '<Rid//problem/123456> This my string'
or
string:= ' This is <Rid//problem/123456> my string'
Now my requirement is i need to extract 123456 using pl/sql block.
is there any way in oracle to get this thing done.
Thanks n regards
Laxman

Hi,
What version of Oracle ?
How do you delimit the string to extract ?
- always between the last / and before the >
- the last string mande of number ?
- the first string made of number ?
Here are 3 possible answers :SQL> with s as (
2 select 'This my string <Rid//problem/123456>' s from dual
3 union all select '<Rid//problem/123456> This my string' from dual
4 union all select ' This is <Rid//problem/123456> my string' from dual
5 )
6 select s.s,
7 regexp_replace(s,'^.*/([0-9]*).*$','\1') r1,
8 regexp_replace(s,'^[^0-9]*(.*?)[^0-9]*$','\1') r2,
9 regexp_replace(s,'^.*/(.*?)>.*$','\1') r3
10 from s ;
S                                        R1       R2       R3
This my string <Rid//problem/123456>     123456   123456   123456
<Rid//problem/123456> This my string     123456   123456   123456
This is <Rid//problem/123456> my string 123456   123456   123456If you're on 10g or more...
Of course it also works in PL/SQL :SQL> l
1 declare
2 r1 varchar2(50) := 'This my string <Rid//problem/123456>';
3 r2 varchar2(50) := '<Rid//problem/123456> This my string';
4 r3 varchar2(50) := ' This is <Rid//problem/123456> my string';
5 r1b varchar2(50);
6 r2b varchar2(50);
7 r3b varchar2(50);
8 begin
9 r1b := regexp_replace(r1,'^.*/([0-9]*).*$','\1') ;
10 r2b := regexp_replace(r2,'^[^0-9]*(.*?)[^0-9]*$','\1') ;
11 r3b := regexp_replace(r3,'^.*/(.*?)>.*$','\1') ;
12 dbms_output.put_line('1 : '||r1||' -> '||r1b);
13 dbms_output.put_line('2 : '||r2||' -> '||r2b);
14 dbms_output.put_line('3 : '||r3||' -> '||r3b);
15* end;
SQL> /
1 : This my string <Rid//problem/123456> -> 123456
2 : <Rid//problem/123456> This my string -> 123456
3 : This is <Rid//problem/123456> my string -> 123456
PL/SQL procedure successfully completed.Edited by: Nicosa on Jul 23, 2010 3:22 PM

Urgent pl. I want to extract float from string (%f %s) or (%s %f) separate

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I tried:
e.g.,
String d="4.000 [tab]4";
source string resulted from "SUBSTRING query of mySQL" can be of :
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" XYZ -4.546 ",
" xx-yy 6.58 3 ",
"6.0 xxx yyy zzz",
the expected results for float from the string should be:
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-4.546
6.580
6.000
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AAXXFE     ,4.206     1     ,
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May be I don't know how to use the following:
float f1 = Float.parseFloat(d);
===
String pattern = "###.###";
//float value = -2100.578f;
DecimalFormat myFormatter = new DecimalFormat(pattern);
String output = myFormatter.format(d);
System.out.println(d+" " + pattern + " " + output);
===

Hi
You made the best choice. JRegex is closer to java.util.regex.* and fine works with excellent performance in any JVM version so you can use examples/tutorials from both JRegex and Java.Sun.Com to learn more about regular expression.
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How to use JRegex? no secrets!
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Regards and Success.

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Hi,
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EQD+CN+SAMPLE18767+2200+++5'
NAD+CA+FIR:172:20'
DGS+IMD+3.2+2346+55:CEL'
FTX+AAA+++GOOD'
FTX+AAA+++ONE'
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DGS+IMD+3.2+2346+55:CEL'
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You've posted > 300 times here and you still don't respect the rule regarding notification of all cross-posts? [http://www.java-forums.org/advanced-java/30061-how-extract-substring-string-based-condition.html]
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More efficient way to extract number from string

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{code}
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¯\_(ツ)_/¯

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If I want to compare a requirement number and extract a number form a continuous data, . for example,
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Just extract all numbers into an array, then find the element with the smallest absolute difference. See attached (LabVIEW 7.0).
EDIT: Sorry, If by "Nearest greater" you mean the next higher number, you can use something like in my example II. (Also LabVIEW 7.0).
If you don't recognize an node, just right-click on it and select help.
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What if there are multiple solutions?
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Message Edited by altenbach on 10-13-2005 09:05 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
FindClosest.vi ‏29 KB
FindClosestII.vi ‏30 KB

Extract substring from string

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