Case insensitive String comparison

It is more proper to discuss this in Internationalization forum. I moved the thread to http://forums.sun.com/thread.jspa?threadID=5380555 .
Edited by: Andy_Chung on Apr 15, 2009 8:09 AM

Thanks the reply.
You suggested we use Locale("") in solution 2, which use equalsIgnoreCase. But the equalsIgnoreCase do not require any Locale as parameter. Could you clarify?
Besides, as I mentioned, could you explain the algorithm used in equalsIgnoreCase method? It seems that it is not natural to check both upperCase and lowerCase for equality. Is there any reference to Unicode.org's advice?

Similar Messages

Not case sensitive string comparison

Is there any chance that the coparison function below returns true value?
Attachments:
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Please vote for this idea...
Case Insensitive Comparison Mode for String Equality Comparison
Now is the right time to use %^<%Y-%m-%dT%H:%M:%S%3uZ>T
If you don't hate time zones, you're not a real programmer.
"You are what you don't automate"
Inplaceness is synonymous with insidiousness

Blank padding in case of nchar columns while case insensitive comparison

hi
i have my database on oracle 9i .
i want case insensitive behaviour so i set nls_comp=ANSi and nls_sort to GENERIC_BASELETTER.
all columns of type character are nchar in my database.
but when i execute a query having a where condition on nchar column blanks are not padded and there is no result ( documentation says lanks are padded while comparisons)..
for e.g select * from area where code='bom' does not return result.
i need to do select * from area where rtrim(code) = 'bom'. (note code is of length nchar(10))
please suggest if here is any solutions for this.

It's always helpful when you have problems if you can provide a concrete example of those problems. For example can you provide something like the following the exhibits the problem?
SQL> SELECT * FROM V$VERSION;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for 64-bit Windows: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
SQL> CREATE TABLE AREA(CODE NCHAR(10));
Table created.
SQL> INSERT INTO AREA VALUES ('bom       ');
1 row created.
SQL> SELECT * FROM AREA WHERE CODE = 'bom';
CODE
bom
SQL> SHOW PARAMETER NLS_COMP
NAME                                 TYPE        VALUE
nls_comp                             string
SQL> SHOW PARAMETER NLS_SORT
NAME                                 TYPE        VALUE
nls_sort                             string
SQL> ALTER SESSION SET NLS_COMP=ANSI;
Session altered.
SQL> ALTER SESSION SET NLS_SORT=GENERIC_BASELETTER;
Session altered.
SQL> SELECT * FROM AREA WHERE CODE = 'bom';
CODE
bom

How to serch a character string in a BLOB (case insensitive)

Hi
Could somebody help me with this please.
I need to search for the existance of a character string in a BLOB column of a table.
I can do it in the below way.
PROCEDURE search (in_search VARCHAR2) IS
lob_doc BLOB;
Pattern VARCHAR2(30);
Position INTEGER := 0;
Offset INTEGER := 1;
Occurrence INTEGER := 1;
BEGIN
Pattern := utl_raw.cast_to_raw(in_search);
SELECT BLOB_CONTENT INTO lob_doc
FROM documents WHERE ein = '702265981';
DBMS_LOB.OPEN (lob_doc, DBMS_LOB.LOB_READONLY);
Position := DBMS_LOB.INSTR(lob_doc, Pattern, Offset, Occurrence);
IF Position = 0 THEN
DBMS_OUTPUT.PUT_LINE('Pattern not found');
ELSE
DBMS_OUTPUT.PUT_LINE('The pattern occurs at '|| position);
END IF;
DBMS_LOB.CLOSE (lob_doc);
END search;
But the problem is, it does a case sensitive search.
I need a case-insensitive search
Thanks in Advance

The best way would be to use Oracle Text.
However, if you want a quick and dirty solution, I would convert to CLOB, and (assuming 9i) you can use LOWER on the CLOB.
Click on this link for a blob_to_clob function.
Re: BLOB to CLOB?

How to compare string in a case-insensitive manner using JavaScript?

Hello everyone,
Now I have a javascript to compare checkbox's value with user's input, but now seems it only can compare case-sensitively, does some one know if there is a function in javascript that it can compare string case-insensitively ?
Here is my script :
function findOffice(field)
var name;
name=prompt("What is the office name?");
var l = field.length;
for(var i = 0; i < l; i++)
if(field.value==name)
field[i].checked=true;
field[i].focus();
field[i].select();
break;
<input type="button" name="Find" value="Find And Select" onClick="findOffice(form1) >
Thanks in advance !
Rachel

Thank you so much, I already solved the problem with your advice.
You really have a beautiful mind, :-).
I appreciate your help !
Rachel

Case insensitive comparison

Is there a way or setting at instance level by which all character value comparisons can happen in case insensitive manner ( For example "ABC" = "Abc" or = "abc" ) without requiring to use upper or lower functions in every query

No there isn't a way currently. You can create a function based index which improves the performance of case insensitive searches. For example:
SQL> CREATE INDEX case_insensitive_ind ON my_table(NLS_UPPER(empname));
SQL> SELECT * FROM my_table WHERE NLS_UPPER(empname) = 'KARL';

Case Insensitive Comparison in Oracle 9i

hi all
in Oracle 10g we have the following statement to enable case-INsensitive comparison:
ALTER SESSION SET nls_sort=binary_ai
do we have somthing like this in Oracle 9i to enable case-INsensitive comparison
thnx
Ashu :)

Connected to:
Oracle9i Enterprise Edition Release 9.2.0.7.0 - 64bit Production
JServer Release 9.2.0.7.0 - Production
SQL> create table t as select 'télé' t from dual
union select 'TÉLÉ' from dual
union select 'tele' from dual
union select 'TELE' from dual
union select 'Bebe' from dual;
Table created.
SQL> alter session set nls_comp=ansi;
Session altered.
SQL> ALTER SESSION SET NLS_SORT=GENERIC_BASELETTER;
Session altered.
SQL> select * from t where t='tele';
T
TELE
TÉLÉ
tele
télé

Error in a report after enabling case insensitive search in conn pool prop

Hi All,
I put the below code in connection pool's connection string to enable case insensitive search.
alter session set NLS_SORT=BINARY_CI
alter session set NLS_COMP=LINGUISTIC
After putting this code one of my report started giving the below error which was working fine otherwise.
Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
State: HY000. Code: 10058. NQODBC SQL_STATE: HY000 nQSError: 10058 A general error has occurred. nQSError: 16001 ODBC error state: S1000 code: 1791 message: OracleODBCOraORA-01791: not a SELECTed expression. nQSError: 16001 ODBC error state: S1000 code: 1791 message: OracleODBCOraORA-01791: not a SELECTed expression. nQSError: 16015 SQL statement execution failed. (HY000)
The report gives error for the below divide condition when I select a column from a different dimension (eg: region)
COUNT(DISTINCT RMA.RMA)/COUNT(DISTINCT User."User Name")
Can anyone please throw a light why this is happening.

Below is the SQL which is throwing error in OBIEE. It was working fine when I tried running it in toad:
select T1609.ATTRIB_05 as c1,
count(distinct T1609.ATTRIB_42) as c2,
TRUNC(T1159.FSCL_WEEK_START_DT) as c3
from
WC_DAY_D T1159 /* RMA_RECEIVED_DT(WC_DAY_D) */ ,
WC_RMA_D T571,
WC_FV_FA_D T1609,
WC_FV_FA_F T1679
where ( T571.ROW_WID = T1679.RMA_WID and T1159.ROW_WID = T1679.RMA_RECEIVED_WID and T1609.ROW_WID = T1679.FV_FA_WID and T1609.ATTRIB_39 <> 'FV' and (T571.STATUS_CD in ('2nd FA', '2nd FA Review', 'Closed')) and TRUNC(T1609.TODO_ACTL_END_DT) is not null and TRUNC(T1159.FSCL_WEEK_START_DT) between TIMESTAMP '2009-03-22 00:00:00' and TIMESTAMP '2009-04-12 00:00:00' )
group by T1609.ATTRIB_05, TRUNC(T1159.FSCL_WEEK_START_DT)
order by c3
-------------------- Query Status: Query Failed: [nQSError: 16001] ODBC error state: S1000 code: 1791 message: [Oracle][ODBC][Ora]ORA-01791: not a SELECTed expression.
[nQSError: 16001] ODBC error state: S1000 code: 1791 message: [Oracle][ODBC][Ora]ORA-01791: not a SELECTed expression.
[nQSError: 16015] SQL statement execution failed.

Specifying Case-Insensitive Element Names in XML Schema

Hope someone knows this!
Is it possible to define an an XML Schema Definition so that Element names in the target XML File can be case insensitive.
At the moment my Parser throws an error if the element names in the XML file do not have the exact same case as the definition in the XML schema.
E.g
In Schema i have:
<xsd:element name="HOSTINVENTORYLINE" type="HostInventoryLineType" maxOccurs="unbounded" minOccurs="0"/>
but in xml file i have
<HostInventoryLine field=""/>
or
<hostinventoryline field=""/>
Does anyone know anyway to get around this, so that the parser accepts the HostInventoryLine element in the xml as an instance of the HOSTINVENTORYLINE element defined in the schema.
Thanks in Advance
JJ
Message was edited by:
[email protected]

You could use substitution groups to handle this. You would need an entry in the schema for each valid capitalization. This won't scale well if you want to be completely case insensitive, but if you only support lower case, upper case, and camel case it should do the trick.
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
     <xs:complexType name="HostInventoryLineType">
          <xs:sequence>
               <xs:element name="an-element" type="xs:string"/>
          </xs:sequence>
     </xs:complexType>
     <xs:element name="HostInventoryLine" type="HostInventoryLineType"/>
     <xs:element name="HOSTINVENTORYLINE" type="HostInventoryLineType" substitutionGroup="HostInventoryLine"/>
     <xs:element name="hostinventoryline" type="HostInventoryLineType" substitutionGroup="HostInventoryLine"/>
</xs:schema>-Blaise

SELECT Query to get the Values in Case insensitive Format

Hi ,
This is hari,
I want to select the user name in a table ex: username="HARI" or username='Hari' or username="HaRi" like this
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.
Awaiting for Response,
Thanks & Regards
Hari

Another solution is setting NLS_SORT to CI - case insensitive (or whatever_your_language_is_CI) and NLS_COMP to ANSI:
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 *
7    from t
8    where name = 'hArI'
9 /
no rows selected
SQL> alter session set nls_sort = binary_ci
2 /
Session altered.
SQL> alter session set nls_comp=ansi
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 *
7    from t
8    where name = 'hArI'
9 /
NAME
HARI
Hari
HaRi
SQL> SY.

Search for LIFNR case insensitive + range

Ladies and gentlemen,
I could use your help. I need to select rows from LFA1 where the name (NAME1) matches a string. It has two difficult points, which I were not able to combine into a single solution, even after all the research I done.
- I need the search to be case insensitive (I found a partial solution here)
- I need to combine it with a range table
So: I need a case insensitive search using range table. Can this be done effectively? Or is there any workaround you could suggest? This is just a minor part of the report about invoices and must not take long.
Thank you for the time and effort,
Cheers Otto

Thank you, guys,
you are very helpful, your ideas solved my problem. The MCOD* idea is easy/fast and solve my problem very well. I don´t understand why I didn´t find it myself. Hope to pay you back one day:))
For others interested:
      DATA sx_dodnam TYPE TABLE OF z_dodnam_range.
      DATA wa_dodnam LIKE LINE OF sx_dodnam.
      LOOP AT s_dodnam INTO wa_dodnam.
        TRANSLATE wa_dodnam-low TO UPPER CASE.
        TRANSLATE wa_dodnam-high TO UPPER CASE.
        APPEND wa_dodnam TO sx_dodnam.
      ENDLOOP.
      SELECT lifnr INTO wa_lifnr-low FROM lfa1 WHERE stcd2 IN s_ico AND mcod1 IN sx_dodnam.
        IF sy-subrc = 0.
          wa_lifnr-sign = 'I'.
          wa_lifnr-option = 'EQ'.
          APPEND wa_lifnr TO lt_lifnr.
        ENDIF.
      ENDSELECT.
Cheers Otto

Case INSENSITIVE Columns on Oracle

Hello Friends,
Good Monday for everyone....
I would like to ask you guys if there is a way to create a case INSENSITIVE Columns on Oracle. I used on Sqlserver before the COLLATE sintax, and I was able to make a columns (just that one) INSENSITIVE.
I'm using oracle 10gr2 on Windows plataform and herte is my nls_parameters. My ideia is to search on this column without the need of performing a function UPPER and LOWER and etc...
NLS_LANGUAGE BRAZILIAN PORTUGUESE
NLS_TERRITORY BRAZIL
NLS_CURRENCY Cr$
NLS_ISO_CURRENCY BRAZIL
NLS_NUMERIC_CHARACTERS ,.
NLS_CALENDAR GREGORIAN
NLS_DATE_FORMAT DD/MM/RR
NLS_DATE_LANGUAGE BRAZILIAN PORTUGUESE
NLS_CHARACTERSET WE8MSWIN1252
NLS_SORT WEST_EUROPEAN
NLS_TIME_FORMAT HH24:MI:SSXFF
NLS_TIMESTAMP_FORMAT DD/MM/RR HH24:MI:SSXFF
NLS_TIME_TZ_FORMAT HH24:MI:SSXFF TZR
NLS_TIMESTAMP_TZ_FORMAT DD/MM/RR HH24:MI:SSXFF TZR
NLS_DUAL_CURRENCY Cr$
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
tks a lot
Keen

APC wrote:
No, they mean a setting which makes "APC" or "apc" match "Apc".
There is nothing to be done on 10g, other than building a function based index on the column in question, so that any UPPER() searches are optimized.
Well, as Kamran Agayev already noted CI is available in 10g too. It also worth mentioning FBI creates a hidden column. Also, your statement
In 11g we have the option to set the NLS_SORT parameter so that any searches are case-insensitive (or indeed accent insensitive). Find out more.
is incomplete. NLS_SORT affects nothing but sort:
SQL> connect scott
Enter password: *****
Connected.
SQL> select * from v$version
2 /
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for 32-bit Windows: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    order by name
12 /
NAM
Joe
Max
Sam
joe
max
sam
6 rows selected.
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    where name = 'max'
12 /
NAM
max
SQL> alter session set nls_sort = binary_ci
2 /
Session altered.
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    order by name
12 /
NAM
Joe
joe
max
Max
Sam
sam
6 rows selected.
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    where name = 'max'
12 /
NAM
max
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    where name like 'm%'
12 /
NAM
max
SQL> select 'Max' name from dual union
2 select 'max' name from dual
3 /
NAM
Max
max
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select distinct name
10    from t
11 /
NAM
sam
Joe
joe
max
Sam
Max
6 rows selected.
SQL> As you can see, NLS_SORT alone works on sort but not on "searches". We also need to set NLS_COMP, which by default is BINARY. Prior to 10g R2 (I am not 100% sure, it could be prior 10g), the only NLS_COMP choice, besides BINARY, was ANSI. However, ANSI does not work with all comparison operators (e.g. does not work for LIKE, UNION, DISTINCT):
SQL> alter session set nls_sort = binary_ci
2 /
Session altered.
SQL> alter session set nls_comp=ansi
2 /
Session altered.
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    order by name
12 /
NAM
Joe
joe
max
Max
Sam
sam
6 rows selected.
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    where name = 'max'
12 /
NAM
Max
max
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    where name like 'm%'
12 /
NAM
max
SQL> select 'Max' name from dual union
2 select 'max' name from dual
3 /
NAM
Max
max
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select distinct name
10    from t
11 /
NAM
sam
Joe
joe
max
Sam
Max
6 rows selected.
SQL> Starting 10g R2 NLS_COMP can be set to LINGUISTIC, which will also work for LIKE and UNION but not for DISTINCT:
SQL> alter session set nls_sort = binary_ci
2 /
Session altered.
SQL> alter session set nls_comp=linguistic
2 /
Session altered.
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    order by name
12 /
NAM
Joe
joe
max
Max
Sam
sam
6 rows selected.
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    where name = 'max'
12 /
NAM
Max
max
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select name
10    from t
11    where name like 'm%'
12 /
NAM
Max
max
SQL> select 'Max' name from dual union
2 select 'max' name from dual
3 /
NAM
Max
SQL> with t as (
2             select 'Max' name from dual union all
3             select 'sam' name from dual union all
4             select 'Joe' name from dual union all
5             select 'max' name from dual union all
6             select 'joe' name from dual union all
7             select 'Sam' name from dual
8            )
9 select distinct name
10    from t
11 /
NAM
sam
Joe
joe
max
Sam
Max
6 rows selected.
SQL> However even LINGUISTIC does not work with:
• CLOB or NCLOB data types
• Object data types
• Table partitions
• Index-organized tables
SY.

Search case-insensitive.

HI All ,
i want to create program that use search from table but case-insensitive ,
How i can do that ?
Regards
James
    SELECT agr_name UP TO iv_limit ROWS
    FROM ZROLE
    INTO TABLE lt_re_role
    WHERE agr_name LIKE lv_search_value.

Hi,
If the definition is not case sensitive, then always the data is stored in CAPS by default.
So what u can do it, translate your string to UPPER CASE and then select.
Place below statement just before your select.
TRANSLATE lv_search_value TO UPPER CASE.
SELECT agr_name UP TO iv_limit ROWS
FROM ZROLE
INTO TABLE lt_re_role
WHERE agr_name LIKE lv_search_value.
Thanks,
Vinod.

Case insensitive search mode by jbo:DataQuery

I'm working on a BC4J JSP project. I cannot find a way to search in the case insensitive mode. I'm using JDeveloper 9.0.3.1. I looked in the DataQueryComponent.jsp, the xxxx_Query.jsp, and all the files generated under the ViewObject to find a way to accomplish this but no luck. Please advise. Thank you.

One thing you can do is modify the query handler. If it's a straight JSP app (no uix/struts) you are probably using DataHandler.jsp for you handling. If this is the case, you can modify the OnEvent section for Search and Add Criteria. They should look like this
<jbo:OnEvent list="Search, Add Criteria" >
<% String rowParam = params.getParameter("nRows");
int nRows = 0;
if (rowParam != null)
try { nRows = Integer.parseInt(rowParam); }
catch (Exception ex) { }
%>
<jbo:ViewCriteria id="vc" datasource="ds" action="new">
<% for (int index=0; index < nRows; index++)
String criteriaRowId = "row" + index;
%>
<jbo:CriteriaRow id="<%=criteriaRowId%>" >
<jbo:AttributeIterate id="attrvc" datasource="ds" queriableonly="true">
<% String item = attrvc.getName();
String value = params.getParameter("row" + index + "_" + item);
%>
<jbo:Criteria dataitem="<%=item%>" value="<%=value%>" />
</jbo:AttributeIterate>
</jbo:CriteriaRow>
<% } %>
</jbo:ViewCriteria>
</jbo:OnEvent>
I added a line just about the <jbo:Criteria> line that converts the value to uppercase like this:
if (value !=null) { value=value.toUpperCase(); }
Hope that helps!

Case Insensitive search and "IN" Clause - Open SQL

Hi,
I have some doubts regarding Open SQL:
Is there any support for Case Insensitive Search in Open SQL, is it availabe by default?
Is there any restriction on number of elements in "IN" Clause, in Open SQL, is there any default number?
I have checked the [Open SQL Grammer|http://help.sap.com/saphelp_nwce711/helpdata/en/9b/f46cabaa874bc9a82234e8cf1d0696/frameset.htm] also, but nothing found there.
Thanks,
Piyush
P.S I didn't find any other appropriate place to post this thread, let me know the correct categorization of Open SQL in case its wrong.

Is there any support for Case Insensitive Search in Open SQL, is it availabe by default?
When you are querying any strings, it is always case sensitive.
Is there any restriction on number of elements in "IN" Clause, in Open SQL, is there any default number?
I don't think there area any. IN opearator works like combined ORs and here you don't have any restrictions in fields number.
Regards
Marcin

Case insensitive String comparison

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