Jdbc: character encoding.. what is the string ?

I have been looking for an hour now, and have had no luck..What is the syntax of building a
jdbc url, where the charset is set to utf-8
regards
Ben

Use the substring (http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html#substring(int)) and indexOf method:
String name = "Brandon Bell";
String suffix = name.substring(name.indexOf('o'));now the String suffix has the value "on Bell".

Similar Messages

"jdbc:mysql:///test" - "jdbc:mysql:test" what is the difference

"jdbc:mysql:///test" -> "jdbc:mysql:test" what is the difference:
I used both of them in my url but only "jdbc:mysql:///test" worked only
what is the difference what /// means?

JDBC URLs have the format
jdbc:<subprotocol>://<data source identifier>
jdbc indicates a JDBC data source. subprotocol identifies which JDBC Driver to use.
For com.mysql.jdbc.Driver and localhost server, database name as 'test':
it's jdbc:mysql://localhost/test
or jdbc:mysql://127.0.0.1:3306/test
you would select another server and database name.
For sun.jdbc.odbc.JdbcOdbcDriver with MS Access or SQLServer database, it's jdbc:odbc:DSNname
HTH

What checks the String pool

Hi there.
With regard to the string pool,
my book states that whenever the compiler
encounters a string literal that it will check the pool to see if
there is a matching string...
This doesn't seem right to me.
I would have imagined that the JVM would perform this operation at runtime.
Maybe I'm wrong, but I googled it and I came across some sites that indicate that
the JVM checks the string pool.
Im just wondering which is it, the JVM or the compiler.
Thanks & regards.

jverd wrote:
Both.
String s1 = "abc";
String s2 = "abc";Compiler sees the first line, looks for "abc" in the class' constant pool, doesn't find it, adds it, places reference to its position for the assignment to s1.
Compiler sees the second line, looks for "abc", finds it, places reference to its position for the assignment to s2.
At runtime, when class is loaded, VM loads class' String constant pool. When time comes to execute the above lines, the bytecode tells it which constant pool entry to reference.Great answer (No, I'm not sarcastic)

JDBC Ipv6 address, what is the port number?

I believe there might an ambiguity when using IPv6 IP address
format with JDBC connection address.
A common format for the connection url is:
jdbc:subprotocol:subname
Where:
subprotocol = <some name>
subname = //<{IP Address|Machine Name}[:port]>/<database name>
Example:
jdbc:sql:t9://130.168.200.30:1433/database1
An IPv6 has the format
x:x:x:x:x:x:x:x
where the 'x's are the hexadecimal values of the
eight 16-bit pieces of the address. This is the
full form. For example,
1:2:0:0:5:6
The IPv6 format also allows an abbreviation version where 0's are
replaced with "::". So, the above address could also be written
as:
1:2::5:6
An optional port number can be added. For example,
1:2:0:0:5:6:8888
or as the following if using the abbreviation version of IPv6
1:2::5:6:8888
While decoding this version of the address, an ambiguity arises.
Does the address expand to
1:2:0:5:6:8888 // no optional port number
or
1:2:0:0:5:6:8888 // contains the optional port number.
Is this correct? If so, how are vendors dealing with this?
Thanks,
.........Ken

>
1:2:0:5:6:8888 // no optional port optional port numberYou are claiming that this is a valid address?
>
Is this correct? I am rather certain that you can not create a form that is ambiguous. Ipv4 has either 4 or 5 integers. Where Ipv6 has either 6 or 7.
If so, how are vendors dealing with
this?Realistically the following situations probably exist
- They are not dealing with it.
- The use the functionality in java.net.* and it deals with it.
- They wrote their own stuff which mimics what java.net.* does.

Integration Gateway - JDBC - Character Encoding Issue

Hello,
I'm using SMP 3.0 SP06 and I'm getting data from MS SQL using JDBC interface and I can get all data successfully.
The problem is:
there is a column in database contain "Arabic" data "right-to-left" language.
and when executing the OData service, for example, if the data in arabic is "هذه للتجربة" it is getting to me "Ù‡Ø°Ù‡ Ù„Ù„ØªØ¬Ø±Ø¨Ø©"
I think this is the same data but in a different encoding/decoding.
Do you have any idea ?
Thanks
Hossam

By the way, I have checked it again it is working fine when requesting data in XML format "default"
The problem occurs only when requesting the service with format parameter "?$format=json"
and it is even working fine when calling it from "Advanced REST client"
so I think it is just a problem in the browser while displaying the data, specially chrome as it is working fine with IE, as chrome is displaying json files as plain text without any formatting or decoding, but IE is saving the file on PC and if I tried to open it by notepad++ I find data correctly decoded.
It seems it is not an SMP nor Integration gateway issue, sorry for confusing

Separating character and number within the string

I want to separate the character and the number within one string.
For example,
12345ABCD (the numbers and character may differ in lengths)
I want to separate into two different string of 12435 and ABCD.
Your help would be greatly appreciated.
Thanks!

here is an example:
sample_separator.sql
declare
i        number := 0;
j        number := 0;
x        number := 0;
vBasis   Varchar2(40) := '12345ABCD';
vString1 Varchar2(40);
vString2 Varchar2(40);
begin
for x in 1 .. length(vBasis) loop
    for i in 0 .. 9 loop
      if substr(vBasis,x,1) = to_char(i) then
        vString1 := vString1 || substr(vBasis,x,1);
      end if;
    end loop;
    for j in 65 .. 90 loop
      if substr(vBasis,x,1) = chr(j) then
        vString2 := vString2 || substr(vBasis,x,1);
      end if;
    end loop;
end loop;
dbms_output.put_line('vString1: '||vString1);
dbms_output.put_line('vString2: '||vString2);
end;
/when run:
SQL> @r:\sample_separator.sql;
vString1: 12345
vString2: ABCD
PL/SQL procedure successfully completed.
SQL> hope this helps.

Issue with Google Analytics Character Encoding (Contribute changes the code)

I am wondering if there are any admin settings to work around this issue. This is an issue with Contribute CS3/CS4.
Editing a page in Contribute turns encoded characters into unencoded characters. For example, turning "%3C" into "<". Encoded version has no errors.
Un-encoded characters in Google Analytics code causes Scripting Errors on each page you open in Contribute, make loading slower, and make it difficult just to browse the site using Contribute.
Specifically changing this:
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
to this:
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("<script src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'></script>"));
</script>
(I believe it is the double </script></script> that might be causing the error to pop up.)

Set the link encoding option as "Insert Links As Is", under Administer website dialog.

DVD to iPhone App Encoding: what is the best workflow?

I am making an iPhone App. I take the video from a DVD.
Naturally I would like to obtain the best image quality for the smallest file size.
I know that the Compressor pre set for iPhone makes:
H.264, 640 x 360, Millions, AAC, Stéréo (G D), 44,100 Khz
So my guess is that I need to convert my MPEG-2 movie to a m4v, H.264, 640 x 360
This is the info of the DVD MPEG-2:
224 MPEG-2, 720 × 480, 4:3, 29.97 fps, 7.50 Mbps, lower field
On one Mac (PowerPC), I have FCP 6.0, Compressor 3.0, MpegStreamClip 1.9.2, QT 7.2
On my other Mac (intel), I have QT 10
I can either use Compressor 3 or buy Compressor 4... I wonder if a QT MPEG-4 Export could do the job?
Of course the movie needs to be compatible (format and video data) to all iPhone iPod Touch and iPad models...
Any suggestion would be great, thanks.

OK great!
So:
MpegStreamClip > ProRes 422 > Compressor > iPod Touch and iPad preset
The MPEG-2 is letterboxed 720 × 480. When cropping the letterboxed area via the geometry pane, I get a 640 X 380 (ideal for me)
Can I use this 640 X 380 size with the iPod Touch and iPad preset ? Will it show up fine on the iPhone 4 and other devices? Should I crop in a different size?

Don't know what to do: Character encoding mismatch in validation

This is what the validator tells me:
The character encoding specified in the HTTP header (iso-8859-1) is different from the value in the element (utf-8 ). I will use the value from the HTTP header (iso-8859-1) for this validation.
This is my DTD:
< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http: //www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
< html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
And this is in the Head:
< meta http-equiv="content-type" content="text/html; charset=utf - 8" />
Can anyone tell me what to do with that?
Thanks
Martin

Sounds like the server is sending a header that says the data is iso-8859-1.
Why, needs to be answered by someone more knowledgeable than I.
~Nick
> This is what the validator tells me:
>
> The character encoding specified in the HTTP header (iso-8859-1) is
> different from the value in the element (utf-8 ). I will use the value
> from the HTTP header (iso-8859-1) for this validation.

What are the classes and interface in JDBC

Please anybody tell me
What are the Classes in JDBC?
and
What are the Interfaces in JDBC?
Will you please show the classes in one table and interfaces in one table. Plesae
regards
pooja.

Hi jeyan,
Very more thanks. I am searching lot of time in net to exactly get the classes and interface in jdbc. Now you have given helpful link.
thank you.
regards
pooja

My big character encoding dilema continues.

Dear list,
Which is better to encode a string of certain encoding into UTF-8. The class java.net.URLEncoder or the Package java.nio.charset ? or is there something better ?
!! This code should consistently work on a linux and windows machine where the system file.io charset paramter could be different !!!
Would appreciate any help.
Ben

Hallo Jschell,
thanx.
i) When one first creates a string. It defaults to
UTF-16. Is this always the case ? It doesn't default to anything. Default implies that it can have other values.
As I said it is always UTF16. There is no way to change that.
How come when i with
jdbc assign a value to the string, and update my
cp1252 database its correctly showing cp1252
characters?The driver and or the database itself normally does that. There are methods in JDBC provided for when the driver/database doesn't do it.
>
ii) You mention a JVM default encoding alot. I presume
this is a system.property. which one ?No idea. You would have to dig into the VM source to figure it out. You can change it on the command line though. Presumably on windows it is tied to the language that you set when you initially install windows.
Is there anything i should watch out for when changing
it?
Not that I know. You probably don't want to switch back an forth though. If you need that then use a multi-boot option and install two different OSes.
iii) why is this default unlikely to be UTF8 or UTF16.
Because computers don't use them. And probably because despite being around a while unicode still isn't really a standard at the OS level. This might be due to performance or legacy. But, especially for UTF16, it is also a matter of storage.
iV) in your experience to what level are people
implementing UTF-8 and UTF-16 databases.Almost zero. UTF16 increases storage for all languages. For Slavic languages it doubles the storage requirements. UTF8 is a better choice but that is only needed when you need a multinational database.

Importance of character encoding?

I am making a list of errors in someone else's code. What about this:
outline of existing code
byte[] binaryMssg = "sync/ack".getBytes(); // client
--- DataOutputStreamtream --->
String mssg = new String(byte[] buf); // server
proposed correction:
byte[] binaryMssg = "sync/ack".getBytes(Charset.forName("UTF-16")); // client
--- DataOutputStream --->
String mssg = new String(byte[] buf, Charset.forName("UTF-16")); // server
The original developer omitted character encoding.
I have zero knowledge/experience with character encoding. I only just noticed method overloads that optionally use them. I don't want to look stupid by putting what is really a non-issue on my list. I don't want to look like a jerk and draw attention to something that, in real world usage, is a non-issue. Otherwise, just to be thorough, I would like to put it on my list. I think it might create more robust code? Any comments welcomed.
Finally, I was so surprised to notice Charset is in the nio package and so not available until v1.4. This hints character encodings where not a prioriry for the Java development team. So, since they did not consider it important, perhaps neither should I. While there may be niches for character encoding usage, the normal-case rule is to not use explicit character encoding.

dpxqb wrote:
I am making a list of errors in someone else's code. What about this:
outline of existing code
byte[] binaryMssg = "sync/ack".getBytes(); // client
--- DataOutputStreamtream --->
String mssg = new String(byte[] buf); // server
proposed correction:
byte[] binaryMssg = "sync/ack".getBytes(Charset.forName("UTF-16")); // client
--- DataOutputStream --->
String mssg = new String(byte[] buf, Charset.forName("UTF-16")); // serverMuch much much better but I would use utf-8 since it is usually more compact for western languages.
>
The original developer omitted character encoding.Criminal.
>
I have zero knowledge/experience with character encoding. I only just noticed method overloads that optionally use them. I don't want to look stupid by putting what is really a non-issue on my list. I don't want to look like a jerk and draw attention to something that, in real world usage, is a non-issue. Otherwise, just to be thorough, I would like to put it on my list. I think it might create more robust code? Any comments welcomed.It is correct to define the character encoding to be used if the bytes are being transferred from one computer to another since the two machines may have a different default character encoding.
>
Finally, I was so surprised to notice Charset is in the nio package and so not available until v1.4. This hints character encodings where not a prioriry for the Java development team. So, since they did not consider it important, perhaps neither should I. While there may be niches for character encoding usage, the normal-case rule is to not use explicit character encoding.Character encoding has always been important in Java. One has always been able to explicitly set the character encoding by using a String to define it. For example one could use
byte[] binaryMssg = "sync/ack".getBytes("utf-16"); // client
--- DataOutputStream --->
String mssg = new String(byte[] buf, "UTF-16"); // server

Why, after all these years, can't Thunderbird auto-detect character encoding

judging by all the existing messages and complaints about this, not to mention erroneous posts that say the problem is solved when it isn't, I have to conclude Mozilla either doesn't believe this is a problem or doesn't care to fix it. The bottom line is that there is no way to tell Thunderbird to automatically display emails in the character coding format they were written in. I could understand cases where the headers are not properly filled in, but I see tons of emails in which the encoding is plainly there in the headers within the message source. You can force it, but if you do so via the menu VIEW->Character Encoding->UTF8 (for example) it won't "stick" if you view another message. But who would want it to "stick" permanently anyway? What the average user really wants is to be able to toggle VIEW->Character Encoding->Auto Detect from its default "off" to simply "on", and not have to bother with it anymore.
This is a problem that seems to have gone on forever, and it NEVER happens with other email clients. If there is some backdoor way to actually make autodetect work, I'd appreciate knowing about it. But more important, I think ALL users would appreciate it if it were not some secret "backdoor" setting, but a simple global menu choice for all accounts. Can Mozilla please fix this problem once and for all?

You said...
''Thunderbird is supposed to be using the encoding in the mail.''
I figured is "should", i'm just reporting that it doesn't
You said...
''Setting auto detect to on disables that.''
Please explain. I've looked at every setting I can find and there is no way to set auto detect to "ON". I DID try setting it to "universal" in an attempt top solve the problem, but I have since restored it to "off", because the universal setting doesn't help.
you said...
''"Based on your earlier response I assume you need to press the F10 key to see the tools menu you were refered to." ''
No... I never said that anywhere. I DID refer to Menu->View_>Character Encoding, and I did refer to right clicking on individual folders, to get to the properties dialog, and the general information tab. But F-10 doesn't do anything
You said...
''I have examines dozens of mails in my inbox and each honours the character encoding set in the HTML''
Well, mine NEVER did. A short example from an email I got today pretty much is exemplative of all mail I get from GMAIL...
--089e013a0572a067a404fc73ceda
Content-Type: text/plain; charset=UTF-8
Ok, very good. Thank you. Phoenix sent you a friend request on Facebook by
the way. Talk to you soon.
--089e013a0572a067a404fc73ceda
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
<p dir=3D"ltr">Ok, very good. Thank you. Phoenix sent you a friend request=
=C2=A0 on Facebook by the way.=C2=A0 Talk to you soon.</p>
--089e013a0572a067a404fc73ceda--
See those incidences pf "=C2=A0"? Each one displays as a strange character, a capitol A with a curved line over it. If I manually set my default encoding to UTF 8, the weird characters go away. If I leave it as Western, there is nothing I can do to tell Thunderbird to "auto detect".
Anyway, I suppose at this point that no one responsible for the product coding is seriously looking at my issue, which is why its never been solved. If anyone does intend to help track it down and solve it, I'll be happy to provide all the examples and screen shots they ask for. Otherwise.

How to get these substrings based on the string entered

Hi friends
i want the substring entered in the string
the string is something like this: 1234,3653,7684,3254,8777,987,234
now i want
the substrings between commas
can some one help me with it pls
in the first substring i need 1234
in the second i need 3653...
so on till the end..
what ever the string be until the last one
pls help

Hi,
You can do something like this:
SELECT     txt
,     REGEXP_SUBSTR (txt, '[^,]+', 1, 1)     AS part_1
,     REGEXP_SUBSTR (txt, '[^,]+', 1, 2)     AS part_2
,     REGEXP_SUBSTR (txt, '[^,]+', 1, 3)     AS part_3
FROM     table_x
;If there are fewer than n parts, then the technique above will not raise an error; it will just return NULL for part_n.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and the results you want from that data.
Explain how you get those results from that data.
What do you want if the input is like this"
{code}
'foo,,bar'
{code}
? Do you want to consider this as 2 parts ('bar' is the 2nd) or a s 3 (the 2nd is NULL, and 'bar' is the 3rd)? Include examples in your sample data and results.
Always say what version of Oracle you're using.

c:import character encoding problem (utf-8)

Aloha @ all,
I am currently importing a file using the <c:import> functionallity (<c:import url="module/item.jsp" charEncoding="UTF-8">) but it seems that the returned data is not encoded with utf-8 and hence not displayed correctly. The overall file header is:
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=E67F9DAF44C7F96C0725652BEA1713D8;
Content-Type: text/html;charset=UTF-8
Content-Length: 6861
Date: Thu, 05 Jul 2007 04:18:39 GMT
Connection: close
I've set the file-encoding on all pages to :
<%@ page contentType="text/html;charset=UTF-8" %>
<%@ page pageEncoding="UTF-8"%>
but the error remains... is this a known bug and is there a workaround?

Partially, yes. It turns out that I created the documents in eclipse with a different character encoding. Hence the entire document was actually not UTF-encoded...
So I changed each document encoding in Eclipse to UTF and got it working just fine...

Jdbc: character encoding.. what is the string ?

Similar Messages

Maybe you are looking for