Trim,ltrim,rtrim

Hi,
I understand TRIM is used for trimming the spaces....
Is this used for any other purpose...
Actually at what scenario these (trim,ltrim,rtrim) are used.
Can anyone please explain me with good examples of how it is used....
Thanks in advance.....

Hi,
They are all used to remove any character from the end of a string.
Space is the default character, but any other character can be specified.
TRIM has the advantage of being able to remove characters from eith the beginning or end of the string at the same time.
TRIM has the disadvnatage of using only one character.
LTRIM and RTRIM have the disadvantage of only operating on the beginning (Left side) or end (Right side) of the string.
LTRIM and RTRIM have the advantage of using as many characters as you want. For example, removing 3 different punctuation marks at once:
RTRIM ( '..;;,,;,.AB,C..;;,,;,.'
)returns
..;;,,;,.AB,CREGEXP_REPLACE can be an altternative.

Similar Messages

Trim and ltrim(rtrim())

is trim the same as ltrim(rtrim())?
I have seen many people using ltrim(rtrim()) instead of trim().
Is it because trim() is only supported in latest version of
Oracle?
THX

yes

LTRIM RTRIM in Template

Hi,
I have a product code column in my report.
When it is viewed in Excel, this shows extra spaces after product code.
I want to remove them in my template
I used
<?xdoxslt:rtrim(producet_code)?>
product_code should a text type form field.
When I write this rtrim function, this is showing me as number type form field instead of text. This is giving me a problem if I have product code like : 00E12H5, the report shows it as E12H5 which is incorrect.
when I simply write <?product_code?> it is showing me as type:text but has trailing spaces.
Any sugggestions?

Any info on this anyone?
I applied LTRIM RTRIM in the query. Even this didnt work.
when I view the column in excel, when I click on any product code, and view it in fx bar on top, it is still showing spaces.
Any idea why this occurs?

LTRIM RTRIM not working for unicode char string in SQL 2005

select len(ltrim(rtrim('メタルワン IFR 12/06 13/05 国際Ⅰ ')))

Could you try by getting rid of other filters in the WHERE caluse ? get rid of the ;
AND Active_bt = 1 AND EngagementStatus_txt = 'O'
from the query and try .
As per one of the replies here, try to see if the space is really a space or some special character by checking its ascii value.
If this is not working, please share your schema structure, with scripts to populate the sample data into it. Please take a look at my test below ;
CREATE TABLE #test
(Eng_id INT,
EngagementId_txt NVARCHAR(90),
EngagementName_txt NVARCHAR(90),
EngagementStatus_txt NVARCHAR(1))
INSERT INTO #test
SELECT 20,'15614483','メタルワン IFR 12/06 13/05 国際Ⅰ ','O'
SELECT EngagementId_txt FROM #test
WHERE
EngagementId_txt = '15614483'
AND
ltrim(rtrim(CAST (EngagementName_txt AS NVARCHAR (90)))) =
ltrim(rtrim(CAST ('メタルワン IFR 12/06 13/05 国際Ⅰ' AS NVARCHAR (90))))
EngagementId_txt
15614483
(1 row(s) affected)
Sanil Mhatre | Database Developer | MCTS | If you find my reply useful in any way, please vote it as helpful. If it has helped answer your question, please mark it as Answer. http://sqlwithsanil.com

How can I remove ASCII text from a field when I use it in a query

How can I remove ASCII text from a field when I use it in a query?
I am running a select statement on a table that appears to have ASCII text in some of the fields. If I use these fields in the where statement like the code below nothing returns:
SELECT FIELD1 FROM TABLE1 WHERE FIELD1 IS NULL
But the field looks empty if I do a straight select without the where clause. Additionally, one of the fields has text but appears to be padded out with ASCII text, which I need to strip out before I can use this field in a where or join statement. I have tried using a trim, ltrim, rtrim, to_char, nvl, decode and nothing works. When I use excel to run the same query it looks as if these ASCII fields are boxes.
I have asked our DBA team to see what they can do to prevent these from going into the table, but in the mean time I still need to run this report.
Do you have any suggestions?

Can you provide an example? I've been trying (for
example) "select translate(' test one', ascii(' '),
'X') from dual" with no luck.
Thank you.To replace space, you should query like this:
select translate(' test one', chr(32), 'X') from dual instead of select translate(' test one', ascii(' '), 'X') from dual Thanks,
Dharmesh Patel

Xalan xslt extension flat file to xml...

anyone used the xsltflat 2.0 to do flat to xml transformation? it does it by using xalan extension...
the packate is com.fs.xalan.extensions.* and test.com.fs.xalan.extensions.*
anyway, it works fine when I do it from command prompt... however when I tried to do it by calling it over Tomcat, the parsing gives me following funny error:
file:///e:/test.xsl; Line 21; Column 92; javax.xml.transform.TransformerException: For extension function, could not find method java.io.FileInputStream.streamIterator([ExpressionContext,] #STRING).
here is the seciton of the xsl file:
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
          version="1.0"
          xmlns:lxslt="http://xml.apache.org/xslt"
          xmlns:stream="com.fs.xalan.extensions.StreamTools"
          xmlns:txt="com.fs.xalan.extensions.TextFormatting"
          extension-element-prefixes="stream txt">
     <lxslt:component prefix="stream" elements="" functions="fileReader tokenize">
          <lxslt:script lang="javaclass" src="xalan://com.fs.xalan.extensions.StreamTools"/>
     </lxslt:component>
     <lxslt:component prefix="txt" elements="" functions="trim ltrim rtrim lpad rpad trunc replace strip stripPunc stripWS upcase downcase">
          <lxslt:script lang="javaclass" src="xalan://com.fs.xalan.extensions.StreamTools"/>
     </lxslt:component>
     <xsl:param name="inputStream" />
     <xsl:template match="/">
          <Employees>
               <xsl:variable name="infile" select="stream:streamIterator($inputStream,'
')" />
               <xsl:apply-templates select="$infile/stream/line" />
          </Employees>
     </xsl:template>
i know for sure the xsl works... there is nothing with wrong with xsl... so i am scratching my head right now...
thanks...

Tomcat also uses XML (for the setting files) and thus: ships with an XML processor. My best guess: your application requires some more recent parser, but the Tomcat provided stuff is found first, and used. Maybe the TransformerException was the result of the famous "Sealing violation" or "Nu such method".
To check if this is the problem: make sure that your new xalan.jar file and (optionally) xerces.jar are in pole position in the class path.
If you happen to use Borland JBuilder: there are two places where you set the order of the required libraries: in the main project settings and in the Project, Run, JSP/Servlet, Server Options, button setup. Here, add your own xalan.jar and xerces.jar as well, and put them on top of the list.
a.

Spooling problem

hi Team,
Can you please help me with the following:
I have a a table which has about 60K of records and has 60 columns to be shown in each row.
For this i spool it in SQL Plus and it generates a excel file of more than 200MB.
And this excel file does not opens up itself.
But if i generate this manually via any sql editor it generates a very small file say 40MB.
The issue that i had noticed was, there are spaces added after every column, it does not trims.
Even added trim(),ltrim(),rtrim but this also did not help.
Can you please help me in reducing the file size after spooling or any other better way.
Thanks
Bhupendra

please find the attached script:
set heading off
set verify off
set feedback off
set pagesize 0
set trimspool on
set linesize 7000
set termout off
spool h:/test1.txt;
select distinct ltrim(rtrim(T176608.ST_CD ,' ')) as c1,
ltrim(rtrim(T176608.LG_NM ,' ')) as c2,
ltrim(rtrim(T176608.FMR_SBU_CD ,' ')) as c3......
l
ltrim(rtrim(T176608.A_DOT_NAME ,' ')) as c59,
ltrim(rtrim(T176608.FMR_RLUP_IN ,' ')) as c60
from
TB_TRM_Data T176608
where ( T176608.RLUP_IN = 'Y') ;
spool off;

String : lacks of ltrim and rtrim

Hi there
- why the String class is not provided with functions like ltrim() and rtrim(), just like basic ?
- how to implement an efficient ltrim() or rtrim() function ?

java.lang.String has a trim method that removes leading and trailing whitespace at the same time. I'll bet the guys who wrote it were smart enough to optimize it so it was relatively efficient. Use that.
Besides, if your code is running so poorly that you're worried about the efficiency of the trim operation, I'd be willing to bet that you've got bigger problems somewhere else. Don't optimize prematurely, and don't guess. Use a profiler to find out where the real trouble spots are.
I'd say that if the lack of an ltrim/rtrim functionality in the String class is such a big deal, then write one for yourself and be done with it. I wouldn't urge Sun to be wasting time on it. Java's been around for years now and it hasn't been an impediment to its adoption.
Or just go back to writing Basic.
This thread has that Swiftian "big endian/little endian" feel to it now.

Trim field's preceeding blank spaces in select statement

Dear Gurus,
I have a select query like this.
DATA : znormt TYPE NORMT.
select normt into znormt from mara where normt EQ Mymatnr.
Mymatnr is coming from one of the Z table and the field contains 3 preceding spaces. Can you please tell me how I can trim the spaces in the select statement to get the result. I am looking for something like this.
select normt into znormt from mara where normt EQ ltrim(rtrim(Mymatnr)).
Appreciate your inputs.
Thanks!
Surya.

Run it through FM CONVERSION_EXIT_MATN1_OUTPUT thusly:
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
EXPORTING
input = mymatnr
IMPORTING
output = mymatnr.
SELECT normt
INTO znormt
FROM mara
WHERE normt EQ mymatnr.
Rob

How to trim spaces in SQL?

Hi there,
I have installed Oracle XE on my machine and have populated it with some data. In one table,namely the Id column i noted there are spaces before the actual code. For example _ _ _12345. My question is, how do i removed these spaces? I am using Oracle SQL Developer to query the tables in XE. I have over 100,000 records.
Thanks for the help
SI

http://download.oracle.com/docs/cd/E11882_01/server.112/e10592/functions002.htm#CJAEEJFC
Refer to the TRIM, LTRIM and RTRIM functions and issue an appropiate UPDATE statement
Sybrand Bakker
Senior Oracle DBA

How to trim a column in ODI

Hi John,
I have a file which has to be loaded to Essbase. In that file i need to trim one of the column.
I tried using TRIM but its not working.
Please let me know how can i truncate the column as per my requirement.
Thanks,
Sravan

What are you using as the staging area, memory engine?
If so on the target column then use LTRIM(source_column) or RTRIM(source_column) or LTRIM(RTRIM(source_column))
The format for substring is :- SUBSTRING(source_column,start_character,length) e.g SUBSTRING(Acc.Parent,1,5)
Cheers
John
http://john-goodwin.blogspot.com/

Post Calculation Computation - Trim

I have an item with the source type of Database column that's coming in with a single space.
when display on the page the user has to delete the space to clear out the space.
I've tried the "Post Calculation Computation" which is pretty straight forward with the Trim and the space still appears.
What I've tried.
Trim(:P8_FUND)
Ltrim(:P8_FUND,' ')
nullif(:P8_FUND,' ')
Non of the above are working.
When I tried the next statement just for a test, the space was removed and the xx appeared, so I can't figure way the above examples won't work????
TRIM(:P8_FUND) || 'xx'

I'm using Apex 3.2.
I created a Trim function and added it to my Load_Start function and the item still has the leading space.
Do you see anything in my code that's not right?
HTML Body
onLoad="Load_Start()";
HTML Header
function Load_Start()
hide_item('P8_FRS_ACCT','P8_HIDE_COL1');
hide_item('P8_FRS_SUBCODE','P8_HIDE_COL1');
hide_popuplov('P8_FUND_CODE','P8_HIDE_COL1');
hide_popuplov('P8_ORGN_CODE','P8_HIDE_COL1');
hide_popuplov('P8_ACCT_CODE','P8_HIDE_COL1');
hide_popuplov('P8_PROG_CODE','P8_HIDE_COL1');
hide_popuplov('P8_ACTV_CODE','P8_HIDE_COL1');
hide_popuplov('P8_ACCI_CODE','P8_HIDE_COL1');
hide_popuplov('P8_LOC_CODE','P8_HIDE_COL1');
hide_item('P8_FRS_OFFSET_ACCT','P8_HIDE_COL2');
hide_item('P8_FRS_OFFSET_SUBCODE','P8_HIDE_COL2');
hide_popuplov('P8_OFFSET_FUND_CODE','P8_HIDE_COL2');
hide_popuplov('P8_OFFSET_ORGN_CODE','P8_HIDE_COL2');
hide_popuplov('P8_OFFSET_ACCT_CODE','P8_HIDE_COL2');
hide_popuplov('P8_OFFSET_PROG_CODE','P8_HIDE_COL2');
hide_popuplov('P8_OFFSET_ACTV_CODE','P8_HIDE_COL2');
hide_popuplov('P8_OFFSET_ACCI_CODE','P8_HIDE_COL2');
hide_popuplov('P8_OFFSET_LOC_CODE','P8_HIDE_COL2');
setFocus('P8_PAGE_FOCUS');
trim('P8_FUND_CODE',' ');
if ($x('P8_FI_ACCOUNT_TYPE').value != "F")
{$x_HideItemRow('P8_FRS_ACCT');
$x_HideItemRow('P8_FRS_SUBCODE');
function trim(str, chars) {
return ltrim(rtrim(str, chars), chars);
}

Trim up to a certain character

hi everyone, i hope someone can help me with this.
i have a string that I need to trim up to a pipe character ("|"). the problem is, the length of the characters before this pipe character varies greatly. How can I trim the string (for example, abcdef346 | rfgt...) and get only abcdef346 as the result?
any help would be greatly appreciated.

Try this
Code Snippet
SELECT
LEFT(column_name,(charindex('|',coulmn_name)-1))
as columnname
FROM table_name
Thanks Magnal
Your query helped me too.
Just a word of caution that it will break if there are values without | character at all
so a much safer approach would be this
SELECT LTRIM(RTRIM(LEFT(column_name,charindex('|',coulmn_name + '|')-1))) as columnname
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Use DECODE, TRIM, SUBSTR? Not Sure

Hi. I am attempting to extract the IP addresses out of the following three strings:
%PIX-5-304001: Accessed URL 170.171.250.20:/
%PIX-5-304001: Accessed URL 170.171.250.100:/
%PIX-5-304001: Denied Access URL 68.142.226.48:/
When I select x from table, i'd like to see:
170.171.250.20
170.171.250.20
68.142.226.48
The good news is that the IP address is always followed by a ":" and always begins after "URL(space)" I thought I could use SUBSTR but the start and end points are not always at the same place and the IP address are of varying length - although they always contain three (3) periods.
DECODE seems like it might be overkill and since there are thousands of unique address might be too much work (as far as I can tell). Are there wildcard options available for a LTRIM/RTRIM combination or am I looking at this issue the wrong way?
Thanks for any help pointing me in the right direction...

Dear all
I have a table having one field where the data are storing in the following way. the name of the field is vc_notify, in the one field there are al best 3 notify info may place. some times they put only one Notify using (i).
I want to seperate 3 notify in the diffenent column from one single SQL query.
the out put would be....
(i) METRO CASH & CARRY BULGARIA EOOD, KM 7-11, TZARIGRADSKO CHAUSSEE BLVD. BG - 1784 SOFIA, BULGARIA.
(ii) SCHENKER EOOD BOUL. LSKARSKO CHAUSSEE 7 BG - 1592 SOFIA, BULGARIA.
(iii) WILLI BETZ OOD & KO BG-BALKAN STAR, 1, SAMOKOVSKO CHAUSSEE, BG-1138 GORUBLJANE, SOFIA, BULGARIA.
NOTIFY_1                    NOTIFY_2                    NOTIFY_2
METRO CASH & CARRY BULGARIA EOOD,      SCHENKER EOOD BOUL. LSKARSKO CHAUSSEE     WILLI BETZ OOD & KO BG-BALKAN STAR,
KM 7-11, TZARIGRADSKO CHAUSSEE BLVD.      7 BG - 1592 SOFIA, BULGARIA.          1, SAMOKOVSKO CHAUSSEE, BG-1138 GORUBLJANE,
BG - 1784 SOFIA, BULGARIA.                                   SOFIA,BULGARIA.
what would be my sql command to retrive the data.
Farhad

ORA-01722: invalid number Error in lpad

I get an ORA-01722 error on the following update statement when field1 contains a non-numeric character. The field is defined as CHAR(4). 99.99% of the time field1 will contain spaces and/or numeric data.
set field1 = lpad(to_char(to_number(field1)),4,'0')
where (substr (field1, 1, 1) = ' ' or
substr (field1, 4, 1) = ' ')
If I remove the to_number portion of the lpad statement I still get the ORA-01722 error. (This baffles me, to be honest.)
If I remove both the to_char and the to_number so that I just have the lpad statement, the field is not being padded with zeros, as per the following code example.
set field1 = lpad(field1,4,'0')
where (substr (field1, 1, 1) = ' ' or
substr (field1, 4, 1) = ' ')
First, I don't understand why the stand-alone lpad statement will not pad field1 with zeros.
Second, since the stand-along lpad isn't padding the fields, what can I do to make the set statement work to avoid the ORA-01722 error when non-numeric characters are present?
Thank you.

To take your points more or less in order.
The TRIM function came in 8 something. It works in my 8.1.7.4 instance, but I don't have anything earlier to test with. You can use LTRIM(RTRIM(field1)) (substitute where appropriate below) instead. That should work even on your 7.3.
When I said "all 4 characters", I really meant had no spaces in them e.g. 'A123' not 'A12 '. Doing LPAD(TRIM('A12 ')) would return '0A12' which is probably not what you would want.
My approach to the fields with alpha characters would really depend on how critical this field is to business operations, and whether you could automate a fix for it. You could identify them using something like:
FUNCTION isnumber(p_totest IN VARCHAR2) RETURN NUMBER IS
   l_tmp NUMBER;
BEGIN
   l_tmp := TO_NUMBER(TRIM(p_totest));
   RETURN 1;
EXCEPTION
   WHEN OTHERS THEN
      RETURN 0;
END;
SELECT * FROM t
WHERE IsNumber(field1) = 0what you do with that depends.
Avi's solution needs a minor re-work. The TO_CHAR function adds an extra space to the character representation of the number to hold a sign. You could use something more like:
UPDATE t
SET field1 = TO_CHAR(TO_NUMBER(field1),'FM0009')The FM format mask stops TO_CHAR from adding the extra character. As long as all the numbers are positive this would be fine. However, it will still throw 1722 on all spaces or an alpha character.
It is not that LPAD cannot handle all spaces, it is the TRIM that screws up all spaces. By trimming all spaces you get NULL, and NULL LPADed to any length is NULL. Because the column is defined as CHAR(4), all records, except explicit NULLs, will be right padded with spaces to that length, so in order to LPAD with zeroes, you need to trim off the extra spaces.
If I understand your basic requirement, you want to get field1 set to a four digit number, left padded with zeroes, or all zeroes if it is null or spaces. I would likely do this in a single step using the IsNumber function above. Something like:
UPDATE t
SET field1 = NVL(LPAD(TRIM(field1),4,'0'),'0000')
WHERE IsNumber(field1) = 1If getting '0A12' in field 1 is acceptable after the update, then you don't really need the IsNumber at all.
HTH
John

Trim,ltrim,rtrim

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