Counting the character in a string
How to find the number of repeated characters in a string
example- 'RAJA' In this string how many 'A' are there
A beautiful query posted by a guru in this forum long time ago.
SQL> set line 1000
SQL> l
1 SELECT ename
2 , Letter_repetition
3 , COUNT(*)repetition_count
4 FROM ( SELECT ename
5 , Letter_repetition
6 FROM emp
7 MODEL
8 RETURN UPDATED ROWS
9 PARTITION BY (ename)
10 DIMENSION BY (0 i)
11 MEASURES (ename Letter_repetition)
12 ( Letter_repetition[FOR i FROM 1 TO
13 length(Letter_repetition[0])
14 INCREMENT 1] = SUBSTR(Letter_repetition[0],CV(i),1)
15 )
16 )--End of FROM clause
17 GROUP BY ename
18 , Letter_repetition
19* HAVING COUNT(*) > 1
SQL> /
ENAME LETTER_REPETITION REPETITION_COUNT
SCOTT T 2
TURNER R 2
ALLEN L 2
MILLER L 2
ADAMS A 2
SQL>
Similar Messages
-
How to escape the character in a string?
I have the following code that is causing an error. I'm
attempting to use < (less than) character in a string that is
part of a dynamic query:
<cfif url.age eq 1>
<cfset askAge = " < 15">
<cfelseif url.age eq 10>
<cfset askAge = " Between 56 and 60">
<cfelseif url.age eq 11>
<cfset askAge = " > 60">
</cfif>
The error occurs as a result of the line <cfset askAge = "
< 15">. The > 60 works fine. What I need is to build the
SQL statement SELECT * FROM myTable WHERE age < 15
ColdFusion sets the string properly but when I try to run the
query I guess it thinks I'm trying to open a tag. The exact error
is:
The content beginning "< " is not legal markup. Perhaps
the " " () character should be a letter.
The content beginning "< " is not legal markup. Perhaps
the " " () character should be a letter.
I can't use the ASCII code for this character as the database
will obviously crap out.
Any help would be greatly appreciated and many thanks in
advance.
DaveDave,
What if you passed off the output of the lt/gt symbols to the
query itself?
Something like,
<cfif url.age eq 1>
<cfset compareOperator = "less"/>
<cfset askAge = "15">
<cfelseif url.age eq 10>
<cfset compareOperator = "between"/>
<cfset askAge = " 56 and 60">
<cfelseif url.age eq 11>
<cfset compareOperator = "greater"/>
<cfset askAge = "60">
</cfif>
Then in the query:
<cfquery name="qTest" datasource="dsn">
SELECT * FROM myTable
WHERE age
<cfswitch expression="#compareOperator#">
<cfcase value="less">
<
</cfcase>
<cfcase value="greater">
>
</cfcase>
<cfcase value="between">
BETWEEN
</cfcase>
<cfdefaultcase>
=
</cfdefaultcase>
</cfswitch>
#askAge#
</cfquery>
Probably a better way, at least a more efficient way, but
just a thought...cfswitch processed pretty quickly and this would
remove any issues with trying to use <> symbols.
Cheers,
Craig -
Count of character in a string
Hi,
Here is a string.
Str = 'test,123,1-Jan-2008',sql,oracle,test,date
Can we count the number of commas(,) in the above string without passing it to any loop? I want to use replace/translate and length for this purpose.
Regards,
RiteshSQL> var a varchar2(500)
SQL> exec :a := '''test,123,1-Jan-2008'',sql,oracle,test,date'
PL/SQL procedure successfully completed.
SQL> print a
A
'test,123,1-Jan-2008',sql,oracle,test,date
SQL> select length(:a)-length(replace(:a,',')) comma_count
2 from dual
3 /
COMMA_COUNT
6 -
Counting particular character in a string
Hi all
how can we count the number of characters in a perticular string in simple SQL statement
example
how many commas are there in this string 'a,b,s,d,e,f,g,h'select length('a,b,c,d,e')-length(replace('a,b,c,d,e',','))
from dual -
Replacing the \ character in a string
I'm having trouble replacing a backslash in a string. I use .indexOf() to find the character, but I have to use an escape character and write .index("\\"), but it doesn't work - it returns -1.
Also, replace() doesn't work - gives me an java.util.regex.PatternSyntaxException. Any ideas?
thxThe escape is for the compiler, I think, and then you need to escape the backslash.
Try "\\\\".
� {� -
Having the '\' character in a string
I get errors when I try to construct a string, say like this:
String blahblah = new String("IBM\ROOT\IMAGE");
Basically it seems like I can't store that '\' character in a string at all. Is this true?
Thanks in advance.the '\' character is used to indicate an escape sequence, used for things like '\n' (new line). To do what you want you can do this:
String blahblah = new String("IBM\\ROOT\\IMAGE"); //notice the double slash '\\' you would also have to do this for double and single quotes, e.g. ( new String("Bill said, \" Anne told me to \'go home now\'\"") : for... Bill said, "Anne told me to 'go home now'") -
Find the count of the character in a string
Hi,
i have a scenario like i have one string in that character is repeated for more than one time.
i want to know how many times that character is appeared in that string by using sql query.
example: "Hello welcome to oracle world" In this i want to know how many time "e" is appeared..
i think we can achieve by using instr and substr but i am not clear can any body please help me by using sql query to solve this issueregexp_count() function.
Better answers available on the SQL-PLSQL forum. PL/SQL
Edited by: SK1 on May 24, 2012 11:30 AM -
How do count the character in the given string?
hi all,
i have astring like 'AAAARAMARAOAAA'.
i want count how many 'A's in this string using sql statement.Is that a joke? You asked that in a previous thread of yours: how do count how many 'A' s in this string using sql stmt?.
C. -
Count a character within a string
Give a string, what function can I use to count how many a particular character in the string. For example:
"abc;def;ghi;xyz"
I want to find out how many ";" in this string.
Thank youAnd of course, if the researched character is not in the given string, then you'll return null, to return 0, you'll need a NVL.even if it is in the string you might need a nvl in Vamsi Kasina's solution:
SQL> select length (';') - length (replace (';', ';')) cnts
from dual
CNTS
1 row selected.Better:
SQL> select nvl(length (';'),0) - nvl(length (replace (';', ';')),0) cnts
from dual
CNTS
1 -
Count the number of occurrence in a string
is there any api for counting the number of occurrence in a string or should i write a method myself?
for example. I want to count "." in "1.2.3.4.". i want to count the dot in this string.
I am just wondering.
Thanks in advance.is there any api for counting the number of
occurrence in a string or should i write a method
myself?The latter. -
Replacing a character in a string to another character
hi,
i need to write a function or procedure to replace the character of a string value suppose:
l_error:= 'abcdefghijklmnop' is a string
i need write a function or procedure to replace the character "c" to "z"
that data in l_error is not in any table.
thanks,
AJI want to Replace all the Existence of the word - "Test" in a string with "Test1" whereever a space exits before the word Test and someother alphabet after "Test" i.e. Test will be replaced with Test1 if a word starts with Test and contains more alphabets also. For example - TestName should be replaced with Test1Name while MyTest should not be updated to MyTest1.
I have tried to use below query which uses oracle regular expressions -
SELECT REGEXP_REPLACE('MYCOMPANY TEST TESTGEET INDIA PVT LTD TEST','\s(TEST)\w',' TEST1') FROM DUAL
Output -
"MYCOMPANY TEST *TEST1EET* INDIA PVT LTD TEST"
Here, it has also replaced the G also from TESTGEET and resulted in TEST1EET while i want TEST1GEET.
Can someone please suggest how can i do this..... may b m doing some silly mistake but sorry m a newbie to regular expression...
Thanks in advance.. -
How to count a occurence of a string in file
import java.util.*;
import java.io.*;
class Count
public static void main(String args[ ] )throws Exception
FileReader fr=new FileReader("d:\\compfetch\\clean\\first.txt");
BufferedReader br=new BufferedReader(fr);
StringBuffer sb=new StringBuffer();
while((s=br.readLine())!=null)
sb.append(s);
s=sb.toString();
Vector v= new Vector();
v.addElement("job");
v.addElement("jobs");
v.addElement("career");
v.addElement("careers");
v.addElement("vacancy");
v.addElement("vacancies");
v.addElement("opportunity");
v.addElement("openings");
v.addElement("posting");
v.addElement("postings");
v.addElement("opportunities");
v.addElement("placement");
v.addElement("placements");
v.addElement("job");
v.addElement("job");
Enumeration vEnum=v.elements();
while(vEnum.hasMoreElements())
System.out.println(vEnum.nextElement());
I need to count the occurence of each string given in the vector from the text file.I have the file and the vector.How do i compare the vector and textfile ,so that i can count the occurence of eachString in the vector with the text file.The text file may contain any of the words given in the vector.If found ,a count shld be made for each string .
regards,
koelTry this code:
import java.util.*;
import java.io.*;
class Count
public static void main(String args[ ] )throws Exception
FileReader fr = new FileReader("c.c");
BufferedReader br = new BufferedReader(fr);
StringBuffer sb = new StringBuffer();
String s;
while((s=br.readLine())!=null)
sb.append(s);
s=sb.toString();
Vector v= new Vector();
v.addElement("job");
v.addElement("jobs");
v.addElement("career");
v.addElement("careers");
v.addElement("vacancy");
v.addElement("vacancies");
v.addElement("opportunity");
v.addElement("openings");
v.addElement("posting");
v.addElement("postings");
v.addElement("opportunities");
v.addElement("placement");
v.addElement("placements");
Enumeration vEnum=v.elements();
while(vEnum.hasMoreElements())
String l = (String)vEnum.nextElement();
int a = 0;
int p = s.indexOf(l,a);
int c = 0;
while (p != -1)
c = c + 1;
a = a + l.length() + p;
p = s.indexOf(l,a);
System.out.println(l+" "+c);
} -
Count the occurance of a character in a string
What is the function to count the occurance of a character in a string.
like 'test test1 test2 test3' with in this string there are 3 white spaces.
instr will give the first one, replace will change the all... and what's for the occurance (number of white spaces, which is 3 in this case) count
Message was edited by:
gladnnSQL> var a varchar2(25)
SQL> exec :a := 'gghhhh999jjjj'
 
PL/SQL procedure successfully completed.
 
SQL> select length(:a) - nvl(length(replace(:a,'h','')),0) from dual;
 
LENGTH(:A)-NVL(LENGTH(REPLACE(:A,'H','')),0)
4Rgds. -
Count the occurence of a character in a string
Post Author: halfpat
CA Forum: Formula
Hello to everyone,
I use CR 8,0. Is anyone can tell me if this is possible:
I have a string "12345-C-1 23456-C-2 34567-C-4", how can I count the occurence of the "C" character in this string ?Is the InStr function can help me to do this ?
I appreciate any suggestion,
Thanks.Post Author: bettername
CA Forum: Formula
How about measuring the length of the string, and subtracting the length of the same string where C is replaced with <nothing>?
len("12345-C-1 23456-C-2 34567-C-4") - len(replace("12345-C-1 23456-C-2 34567-C-4" , "C", "")) -
Program to count the no. of times a character occurs in a string.
program to count the no. of times a character occurs in a string.
Say if u have a method :- Countclass(string s,char c) then using this u should be able to count a char ' T' in the string ="TESTING".
So it is appering 2 times.
How to count it.int countChar(String s, char c) {
int count = 0;
for (int i=0; i<s.length(); i++) {
if (s.charAt(i) == c)
count++;
return count;
}
Maybe you are looking for
-
Manually manage music and videos isn't working after iTunes update and iPhone 4 IOS5 update.
Just update my iPhone 4 to IOS5 and updated to the latest verison of iTunes also and now I can't manually put songs from my music folder into my iPhone's music section now. Normally I would just drag songs into my iPhone's music section but now it wo
-
Outlook Connector and shared calendar
Hi. Looking for some help troubleshooting an issue with shared calendar functionality from Outlook using the Connector. All server bits are JES-R2. Connector version is 6.0.129. Connector is working for the most part, but when I try to subscribe to a
-
A Tv program I bought on my Itunes has a error_50 ,So I can't watch the last 10 mins of my program what do I do ?
-
Buil-in microphone frequency response graph
I'm curious as to where I can find a frequency response graph for the built-in mic in the 15" MBP 2.8. I know it's a silly thing to want, but... Sometimes I don't have the time or resources to set-up an external mic with a flat frequency response, an
-
MUST READ - Found out why LR runs so slow on my Computer
I'm running a 3.2 Pentium 4 with 3 Gigs RAM and an ATI Radeon X700 graphics card with 256 onboard memory. OS = Vista Ultimate I found that running in safe mode produces stellar results. It flies, LR that is. But starting up in diagnostic mode produce