Like operator and byte[ ]

hello,
how to use Like operator with byte[ ]
byte[] buff= myString.getBytes("UTF-8");
String query="SELECT * FROM Person WHERE Firstname LIKE ? "
ps = getConnection().prepareStatement(query);
ps.setBytes(1, buff);
rset = ps.executeQuery(); thanks

no effect
byte[] buff= myString.getBytes("UTF-8");
String query="SELECT * FROM Person WHERE Firstname
LIKE ? "
ps = getConnection().prepareStatement(query);
ps.setBytes(1, new String(buff));
rset = ps.executeQuery();
What a complete and utter bunch of crap.
You are back to not having wildcards again.
God knows what is in myString.
And of course you still haven't posted your result set processing code which if it is the same garbage as before will do you no good whatsoever.
Crap.
What exactly is the problem here? Another copy and past programmer in over their heads with a deadline looming or what?

Similar Messages

Problem in JDBC , when using LIKE operator. - VERY URGENT

Problem in JDBC , when using LIKE operator.
LINE 1 : String temp = "AA";
LINE 2 : String query = "select * from emp where EMPNAME like '*temp*' ";
LINE 3 : Staement st = con.createStaement();
LINE 4 : ResultSet rs = st.executeQuery(query);
'*' character is not getting evaluated. In MS ACCESS2000 only * is accepted instead of '%'. Moreover in MS ACCESS the like operator has to be used within double quotes as a String. whereas in other databases, it accepts single quotes as a String.
Ex:
In MS ACCESS
     select * from emp where ename like "*aa*";
Other Databases
     select * from emp where ename like '%aa%';
In my situation iam passing a Variable inside a like operator and '*' is used.
For the above Scenario, Please help me out.
If possible Kindly let me know the exact Syntax.
Please give me the answer as LINE1,LINE2,LINE3,LINE4,
I have verified in JDBC Spec also, it has been specified to use escape sequence.that too did not work.
Due to this, My project is in hold for about 4 days. I could not find a suitable solution.
Please help me out.

I made a LIKE clause work with M$ Access, using PreparedStatement and the % wildcard:
            escapeStr                   = "%";
            String sql                  = "SELECT USERNAME, PASSWORD FROM USERS WHERE USERNAME LIKE ?";
            PreparedStatement statement = connection.prepareStatement(sql);
            statement.setString(1, ("user" + escapeStr));
            ResultSet resultSet         = statement.executeQuery();
            while (resultSet.next())
                System.out.println("username: " + resultSet.getObject("USERNAME") + " password: " + resultSet.getObject("PASSWORD"));

Like operator query

i want example
about like operator
AND N.user_je_category_name LIKE'PAS_%'
and i want to said
AND N.user_je_category_name LIKE'PAS_%' and 'BS_'%
HOW MAKE THAT

Hi,
Usama Hashem wrote:
THANX FOR U BUT HOW USE GROUP BY IN THIS QUERY What makes you think there's anything wrong with it?
Are you getting an error message? If so, post the error message.
Are you getting the wrong results? If so, describe.
Whenever you post any code, format it to show the extent of major sections (sub-queries, nested functions, nested anything, multi-part concats, ...
Whenever there's a lot of code between a '(' and its matching ')', put them on separate lines, indent them the same amount, and indent everything in between them at least that much.
Type these 6 characters:
{code}
(all small letters, inside curly brackets) before and after sections of formatted text.
The longer the code is, the more important it is to do this.
It looks like you're doing something like this:
Select sum (debt)     debt
,     sum (credit)     credit
from     (
     Select ( SUM (l.ENTERED_DR)
          - SUM (l.ENTERED_CR)
          )               Debt,
          SUM (l.ENTERED_CR)
           - SUM (l.ENTERED_CR)     Credit
     from      gl_code_combinations M,
     where     ...
     AND      H.DEFAULT_EFFECTIVE_DATE BETWEEN :FROM_DATE AND :TO_DATE
     AND     (     N.user_je_category_name   NOT LIKE 'PAS_%'
          AND     N.user_je_category_name   NOT LIKE 'WS_%'
          OR     N.user_je_category_name   LIKE     'RE_%'
GROUP BY M.SEGMENT2
,            (    M.segment1   || '.'
         || M.segment2   || '.'
         || M. segment3 || '.'
         || M.segment4   || '.'
         || M. segment5 || '.'
         || M.segment6
-- Need   ) here?That is, the main query is based on an in-line view.
The only columns in that in-line view are debt and credit.
If you want to reference columns like segment1, segemnt2, ... in the main query, then you have to include them in the SELECT clause of the in-line view.
(Since the in-line view is a UNION, remember to include them in both SELECT clauses.)
Table alias M is only defined inside each branch of the UNION. In the main query, you'll reference the columns as segment1, segment2, ...
The following two items may be giving you the right results now, but even if so, they are accidents waiting to happen, and should be fixed.
(1) What is the data type of gl_je_headers.default_effective_date?
If it's a DATE then only compare it to other DATEs. Unfortunately, bind variables can't be DATEs, so you'll have to do something like:
...     AND      H.DEFAULT_EFFECTIVE_DATE BETWEEN TO_DATE (:FROM_DATE, 'DD-MON-YYYY')
                           AND        TO_DATE (:TO_DATE,   'DD-MON-YYYY')(2) Never mix AND and OR.
You probably need another layer of parentheses somewhere around:
...     AND     (     N.user_je_category_name   NOT LIKE 'PAS_%'
          AND     N.user_je_category_name   NOT LIKE 'WS_%'
          OR     N.user_je_category_name   LIKE     'RE_%'
          )Maybe
...     AND     (   (     N.user_je_category_name   NOT LIKE 'PAS_%'
              AND     N.user_je_category_name   NOT LIKE 'WS_%'
          OR     N.user_je_category_name   LIKE     'RE_%'
          )It looks like credit will always be 0 (or NULL) in the first branch of the UNION. Is that what you meant?

Like operator not passed to database for nvarchar(max)

From Crystal Reports 2008 I need to do a keyword search against a data type of nvarchar(max).
I am using the LIKE operator in my record selection formula.
When I do a SHOW QUERY the LIKE condition is omitted from the where clause.
This makes the report run so slow it is useless.
How can I do a keyword search against an nvarchar(max) data type?
Thanks,
Larry
CR Developer 12.2.0.290, Product type: Full
SQL Server 2008 r2

Sorry it wasn't clear what you are doing or why. I assumed you were using the LIKE in the record selection formula to filter on fields like CustomerID etc. which can be passed to the server. You want to filter based on the text in a Description type field field.
Yes that is going to be very slow having Crystal do it client side, means all of the data will be sent to the local work station and then on the second pass CR will start filtering.
You could try using a Command Object to use as the data source, CR should simply pass what ever SQL you type in. Copy your existing SQL and then create a new report and use a Command object and paste in the SQL, edit it to include the LIKE operator and see it that works for you.
Another option is to use a Stored Procedure with a parameter to do the searching, that will force it to do it Server side. DB servers will aways be more efficient at processing filters that ce will be.
When viewing the report can you not use the Search window, although that is after the fact so it too would mean all data has to come down first...?
Basically what is happening is CR is testing every word in the nvarchar field, CR isn't very optimized to do that kind of filtering client side and because it's more complex SQL we won't generate the proper syntax to pass it to the server. Also, Cr supports so many data sources and to build that logic into the basic report designer is very complex and not efficient, there are various DB tools that can do that kind of work and CR can connect to them, Universes, Data Integrator etc., those tools are designed to do this type of complex SQL generation.
Thank you
Don
PS - If Jason sees this thread he is a SQL guru and may have some suggestion for you also.
Edited by: Don Williams on Jun 22, 2011 11:17 AM

LIKE OPERATOR QUESTION

Hi All,
Quite simply I don't really understand two things.
1) How is the LIKE operator is working to return both columns.
2) When to use the LIKE operator and when to use the relation operator.
Thanks.
(CODE)
SELECT *
FROM ( SELECT TO_DATE ('01/01/2009 12:01:01', 'DD/MM/YYYY HH24:MI:SS') aa,
TO_DATE ('1-Jan-2009') bb FROM DUAL
WHERE aa LIKE bb
--returns both columns
SELECT *
FROM ( SELECT TO_DATE ('01/01/2009 12:01:01', 'DD/MM/YYYY HH24:MI:SS') aa,
TO_DATE ('1-Jan-2009') bb FROM DUAL
WHERE aa = bb
--returns nothing
(/CODE)

Hi,
DaveyB wrote:
Hi All,
Quite simply I don't really understand two things.
1) How is the LIKE operator is working to return both columns.The WHERE clause (whether it contains LIKE or anything else) will only control the number of rows: every row will have the same numberr of columns.
2) When to use the LIKE operator and when to use the relation operator.Use LIKE when you want to use "wildcards" (% or _).
Use other operators (like =) when you don't have wildcards.
(CODE)
SELECT *
FROM ( SELECT TO_DATE ('01/01/2009 12:01:01', 'DD/MM/YYYY HH24:MI:SS') aa,
TO_DATE ('1-Jan-2009') bb FROM DUAL
WHERE aa LIKE bb
--returns both columns
SELECT *
FROM ( SELECT TO_DATE ('01/01/2009 12:01:01', 'DD/MM/YYYY HH24:MI:SS') aa,
TO_DATE ('1-Jan-2009') bb FROM DUAL
WHERE aa = bb
--returns nothing
(/CODE)It's great that you're trying to format your code! I wish everyione did that.
Use square brackets ([ and ]) if you want to use [CODE] and [/CODE] tags.
LIKE operates on strings. Don't use a DATE where a string is required. Do some experiments like the ones you tried just using strings, if you want to see how LIKE behaves.

[Microsoft][SQL Server Native Client 11.0][SQL Server]The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator. 'Items' (OITM) (OITM)

Dear Experts,
i am getting the below error when i was giving * (Star) to view all the items in DB
[Microsoft][SQL Server Native Client 11.0][SQL Server]The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator. 'Items' (OITM) (OITM)
As i was searching individually it is working fine
can any one help me how to find this..
Regards,
Meghanath.S

Dear Nithi Anandham,
i am not having any query while finding all the items in item master data i am giving find mode and in item code i was trying to type *(Star) and enter while typing enter the above issue i was facing..
Regards,
Meghanath

Error in SQL Query The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator. for the query

hi Experts,
while running SQL Query i am getting an error as
The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator. for the query
select T1. Dscription,T1.docEntry,T1.Quantity,T1.Price ,
T2.LineText
from OQUT T0 INNER JOIN QUT1 T1 ON T0.DocEntry = T1.DocEntry INNER JOIN
QUT10 T2 ON T1.DocEntry = T2.DocEntry where T1.DocEntry='590'
group by T1. Dscription,T1.docEntry,T1.Quantity,T1.Price
,T2.LineText
how to resolve the issue

Dear Meghanath,
Please use the following query, Hope your purpose will serve.
select T1. Dscription,T1.docEntry,T1.Quantity,T1.Price ,
CAST(T2.LineText as nvarchar (MAX))[LineText]
from OQUT T0 INNER JOIN QUT1 T1 ON T0.DocEntry = T1.DocEntry LEFT OUTER JOIN
QUT10 T2 ON T1.DocEntry = T2.DocEntry --where T1.DocEntry='590'
group by T1. Dscription,T1.docEntry,T1.Quantity,T1.Price
,CAST(T2.LineText as nvarchar (MAX))
Regards,
Amit

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''Duplicate post, continue here - [https://support.mozilla.com/en-US/questions/780590]''
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but the code of userChome.css
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Why the 'LIKE' operator takes so much time to run?

I have a table T with 3 columns and 3 indexes:
CREATE TABLE T
id VARCHAR2(38) NOT NULL,
fid VARCHAR2(38) NOT NULL,
val NVARCHAR2(2000) NOT NULL
ALTER TABLE T ADD (CONSTRAINT pk_t PRIMARY KEY (id,fid));
CREATE INDEX t_fid ON T(fid);
CREATE INDEX t_val ON T(val);
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So I am wondering what I should change to make the 'LIKE' operator run as fast as the '=' operator. I know CONTEXT/CATALOG index is a viable approach, but I am just trying to find out if there is a simpler alternative, such as a better use of the index t_val.
1) Query with '=' operator
SELECT id
FROM T
WHERE fid = '{999AE6E4-1ED9-459B-9BB0-45C913668C8C}'
AND val = '3504038055275883124';
2) Query with 'LIKE' operator
SELECT id
FROM T
WHERE fid = '{999AE6E4-1ED9-459B-9BB0-45C913668C8C}'
AND val LIKE '3504038055275883124';
Execution Plan
0 SELECT STATEMENT Optimizer=ALL_ROWS (Cost=1 Card=1 Bytes=99)
1 0 TABLE ACCESS (BY INDEX ROWID) OF 'T' (Cost=1 Card=1 Bytes=99)
2 1 INDEX (RANGE SCAN) OF 'T_VAL' (NON-UNIQUE) (Cost=4 Card=12)

I will for sure try to change the order of the PK and see whether there will be any impact to the performance.
In our application, val is much closer to a unique value than fid. In the example query, the execution plan showed that the index on val was indeed used in the execution of the query. That's why the 1st query took almost no time to return (our table T has more than 6 million rows).
I was hoping the 'LIKE' operator would utilize the t_val index effectively and provide similar performance to the '=' operator. But apparently that's not the case, or needs some tricks.

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Message was edited by: siva csc

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Like operator functionality

We have a simple select query which is using the 'Like' operator on a char(4) column.
In a oracle windows environment when we have a query such as:
select col1, col2, col3
from table1
where col1 like 'AB'
it returns everything which is = to 'AB' and doesn't seem to be including the trailing 2 spaces as would be stored becasue the column is char(4)
In a oracle unix environment when we the same query:
select col1, col2, col3
from table1
where col1 like 'AB'
it returns nothing...
It appears as if the version running on a windows environment is truncating the trailing 2 spaces when using the like expression but in a unix environment, it is not. Does anybody have any idea or clue what could be occuring or if there is some database setting which could cause this to occur?

Quote from Oracle Doc:
Character Values
Character values are compared using one of these comparison rules:
Blank-padded comparison semantics
Nonpadded comparison semantics
The following sections explain these comparison semantics.
Blank-Padded Comparison Semantics If the two values have different lengths, then Oracle first adds blanks to the end of the shorter one so their lengths are equal. Oracle then compares the values character by character up to the first character that differs. The value with the greater character in the first differing position is considered greater. If two values have no differing characters, then they are considered equal. This rule means that two values are equal if they differ only in the number of trailing blanks. Oracle uses blank-padded comparison semantics only when both values in the comparison are either expressions of datatype CHAR, NCHAR, text literals, or values returned by the USER function.
Nonpadded Comparison Semantics Oracle compares two values character by character up to the first character that differs. The value with the greater character in that position is considered greater. If two values of different length are identical up to the end of the shorter one, then the longer value is considered greater. If two values of equal length have no differing characters, then the values are considered equal. Oracle uses nonpadded comparison semantics whenever one or both values in the comparison have the datatype VARCHAR2 or NVARCHAR2.
"

LIKE operator is not working in SQL Query in XML file

Hi Gurus,
LIKE operator is not working in SQL query in XML template.
I am creating a PDF report in ADF using Jdeveloper10g. The XML template is as follows
<?xml version="1.0" encoding="WINDOWS-1252" ?>
<dataTemplate name="catalogDataTemplate" description="Magazine
Catalog" defaultPackage="" Version="1.0">
<parameters>
<parameter name="id" dataType="number" />
<parameter name="ename" dataType="character" />
</parameters>
<dataQuery>
<sqlStatement name="Q1">
<![CDATA[
SELECT ename, empno, job, mgr from EMP where deptno=:id and ename LIKE :ename || '%']]>
</sqlStatement>
</dataQuery>
<dataStructure>
<group name="EmployeeInfo" source="Q1">
<element name="EmployeeName" value="ename" />
<element name="EMPNO" value="empno" />
<element name="JOB" value="job"/>
<element name="MANAGER" value="mgr" />
</group>
</dataStructure>
</dataTemplate>
if i pass the parameter value of :ename from UI, it doesn't filter. But if I give ename = :ename it retrieves the data. Can anyone help me why LIKE operator doesn't work here?
Appreciate your help,
Shyamal
email: [email protected]

Hi
Well for a start, you are doing some very strange conversions there. For example...
and to_char(a.msd, 'MM/DD/YYYY') != '11/11/2030'
and to_char(a.msd, 'MM/DD/YYYY') != '10/10/2030'If a.msd is a date then you should e converting on the other side ie.
and a.msd != TO_DATE('11/11/2030', 'MM/DD/YYYY')
and a.msd != TO_DATE('10/10/2030', 'MM/DD/YYYY')Also, you may want to take into consideration nothing being input in :P2_ITEM_NUMBER like this...
AND INSTR(a.item_number,NVL(:P2_ITEM_NUMBER,a.item_number)) > 0Is item number actually a number or char field? If it's a number, you want to explicitly convert it to a string for using INSTR like this...
AND INSTR(TO_CHAR(a.item_number),NVL(TO_CHAR(:P2_ITEM_NUMBER),TO_CHAR(a.item_number))) > 0?
Cheers
Ben

Like operator and byte[ ]

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