Case insensitive selects with 'like'

I use a 10g database (10.2.0.2 same behaviour with 10.2.0.1). What we want is case insensitive selects with 'like' operator in the where clause. NLS_COMP is set to 'LINGUISTIC' and NLS_SORT is set to 'BINARY_CI.
In a table we have two columns one of type 'varchar2' one of type 'nvarchar2'. The databases national character set is set to UTF8. Case insensitive sorting works with both columns. Select statements with '.... where varchar2col like '%r%' returns also values with upper case 'R' values (that is what I expect).
The select statements with '.... where nvarchar2col like '%r%' however does not return the row with upper case 'R' values.
I used SQL*Plus: Release 10.2.0.3.0 and other clients and the behaviour is the same so
I think it is not client related.
Is that a known issue or is there any other parameter to set for UTF8 nvarchar columns?
Any hint is very much appreciated! Here are the nls settings in database, instance and session:
DPARAMETER      DVALUE IVALUE SVALUE
NLS_CHARACTERSET WE8ISO8859P1
NLS_COMP      BINARY LINGUISTIC LINGUISTIC
NLS_LANGUAGE      AMERICAN AMERICAN AMERICAN
NLS_NCHAR_CHARACTERSET UTF8
NLS_RDBMS_VERSION 10.2.0.1.0
NLS_SORT BINARY BINARY_CI BINARY_CI
NLS_TERRITORY      AMERICA AMERICA AMERICA

OK. Found out what the problem is. It is obviously the client.
While using the instant client and setting the parameters (NLS_SORT=BINARY_CI and NLS_COMP=LINGUISTIC) as environment variables does not work correctly, at least not for nvarchar2 fields. The nls_session_parameters show the correct values, but selects with 'like' operators in the where clause do not return case insensitive. Issuing the 'alter session' commands and again setting the nls parameters solves the problem.
Using the full client installation also works, in case the parameters are set in the registry on windows systems. With the full client it it not necessary to issue the 'alter session' commands again.
So obviously the problem is instant client and nvarchar2 field related. That's too bad....

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Hi Qian,
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http://radio.weblogs.com/0118231/2005/02/10.html#a492
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Hi,
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select id
from test_table t1
where exists (
                select 1
                  from test_table2 t2
                  where ';' || trim(t1.col1) || ';' like '%;' || trim(t2.col1) || ';%'
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SQL> Why column COL1 is defined as CHAR? Since CHAR is right blank padded you will have to trim. Use VARCHAR2:
SQL> select id
2    from test_table t1
3    where exists (
4                  select 1
5                    from test_table2 t2
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8 /
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How do I make a case-insensitive comparison with PHP?

This is what I have tried so far:
if (strcasecmp($var, "ComparedString") == 0)
$error = 1;
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You are looking to see if they are equal? Your code should
work to set
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Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
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"AngryCloud" <[email protected]> wrote in
message
news:fkbm59$g70$[email protected]..
> This is what I have tried so far:
>
> if (strcasecmp($var, "ComparedString") == 0)
> {
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> }
>
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Search * from t where a like b case-insensitive ?

I have a Database-field (CHAR60) that contains text with upper and lower case letters. In my application, the user can search for entries in the DB table using this field, which leads to an SQL statement like this:
SELECT * FROM table WHERE field LIKE pattern INTO...
My question:
If I search for "abc", i won't find entries with "aBc". Can I do a case-insensitive search with SELECT and LIKE?

Hello Daniel,
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SELECT *
FROM table.
TRANSLATE : TABLE-FIELD TO UPPERCASE,
              PATTERN TO UPPERCASE.
IF TABLE-FIELD CS PATTERN.
*    Do your processing here...or fill the internal table
ENDIF.
ENDSELECT.
I know this code has been a bit crude, but this is the essence.
Regards,
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Intermittent oracle errors with case-insensitive searches

Hi
I have a table with several columns, two of them are indexed with oracle text.
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When I call a query:
SELECT
FROM
article_table at
WHERE
CONTAINS(searchfield , '%MEAT%') > 0
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ERROR
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DRG-00100: internal error, arguments : [50935],[drpnw.c],[601],[],[]
DRG-00100: internal error, arguments : [51002],[drwa.c],[594],[],[]
DRG-00100: internal error, arguments : [51028],[drwaw.c],[297],[0],[%MEAT%]
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Anyone knows what is going on? Is this bug? Is there a fox for it?
Thanks for any help anyone can provide.
/Kjell

Clearly that's a bug. Unless anyone here recognizes it and can point you to the bug/patch number I would strongly recomend you to take it to oracle support.
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SAP JPA - case-insensitive search

Hi there, is it possible to have a case-insensitive search with SAP JPA? The keywords UPPER, LOWER aren't available in the query (OpenSQL limitation I guess).
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Hi,
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Make sure that you use the hint described in
http://help.sap.com/saphelp_nwce72/helpdata/en/4a/0cf02870c540caab611d56220ec0cb/frameset.htm
together with createNativeQuery.
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Case Insensitive Search coupled with "LIKE" operator.

Greetings All, I am running Oracle 11gR1 RAC patchet 25 on Windows X64.
This db supports and application that requires case insensitive searches.
Because there are a few entry points into the db I created an "after login" trigger:
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AFTER LOGON
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select * from MyTable where Name = 'STEVE';
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CREATE INDEX "CONTACT_IDX3 ON MYTABLE (NLSSORT("NAME",'nls_sort=''BINARY_CI'''))
This all works fine, no issues.
The problem is when I write a query that uses the "LIKE" operator:
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The table has about 600,000 rows and I have run gather schema stats.
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L

I think there is issue with your logon trigger :
"IF ((USER = 'MyAppUSER') OR(USER = 'MyAppREPORTINGUSER')) THEN"
it should be :
IF UPPER(USER) = 'MYAPPUSER' OR UPPER(USER) = 'MYAPPREPORTINGUSER' THEN
because user name stored in Upper case. Check and try.
HTH
Girish Sharma

Like Query with Case insensitive

Hi ,
I have select query with Like, need to add case insenstive for that.
E.g
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Thanks
Durai

Hi
Use uppercase for example:
Select * from emp where upper(empname) like ('D%');
Ott Karesz
http://www.trendo-kft.hu

SELECT Query to get the Values in Case insensitive Format

Hi ,
This is hari,
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If i wrote the query like
select username from userdb where username="Hari";
it is displaying the records which only matches "Hari" only .
can anybody help me out on this query asap please....
the query should return all the results
which matches any of the following strings as inputs "HARI" or "HaRi" or "hAri" or the like.
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Thanks & Regards
Hari

Another solution is setting NLS_SORT to CI - case insensitive (or whatever_your_language_is_CI) and NLS_COMP to ANSI:
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3             select 'Hari' name from dual union all
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2 /
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2 /
Session altered.
SQL> with t as (
2             select 'HARI' name from dual union all
3             select 'Hari' name from dual union all
4             select 'HaRi' name from dual
5            )
6 select *
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Hello to all,
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ALTER SESSION SET NLS_COMP=LINGUISTIC;
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with t as
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Hi all,
I'm having a problem with a query acting as if it is case-insensitive when I do a "SELECT table.x INTO variable ...". If I do the same query, without the "INTO variable", I get one result, as expected.
The query is similar to the following:
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791307 wrote:
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4      , constraint T_UK1 unique (Varchar2Data, NumberData)
5 );
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1 row created.
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2      NumberData number(38);
3      Id Number;
4 begin
5      NumberData := 100;
6      select Id into Id
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9      and T.NumberData = NumberData;
10      DBMS_OUTPUT.PUT_LINE(Id);
11 end;
12 /
declare
ERROR at line 1:
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at line 6
SQL> declare
2      v_NumberData number(38);
3      v_Id Number;
4 begin
5      v_NumberData := 100;
6      select Id into v_Id
7      from T
8      where T.Varchar2Data = 'STRING'
9      and T.NumberData = v_NumberData;
10      DBMS_OUTPUT.PUT_LINE(v_Id);
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12 /
1
PL/SQL procedure successfully completed.
SQL>

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