I currently do have an address table in MYSQL, with its Character Set set to 'utf8' and Collation to 'utf8_unicode_ci'. There exists a column name Address and I am trying to store the city name Łódź into the Address column. I tried to key in directly into the table at SQLyog Community 64, as well as using the tool MYSQL for Excel but it keeps showing the error 'Incorrect string value'.
I have tried to set the Character Set set to 'utf8mb4' and Collation to 'utf8mb4_unicode_ci'and it still gives me the same error.
Any help on how should I set the character set and collation in order to store Łódź? This city name is just one of many examples, and moving forward I may experience other similar characters as well. What can I use for a universal character set?
(utf8 and utf8mb4 work equally for Polish characters.)
You have not provided enough details about the flow of the characters, but the following should provide debugging for MySQL:
Trouble with utf8 characters; what I see is not what I stored
When stored correctly, the utf8 (or utf8mb4) encoding for Łódź is hex C581 C3B3 64 C5BA.
Related
Hi I am trying to insert some Chinese characters in my sql database. For some character I am not getting any issues, but for the 2nd insert 2nd character I am getting error as shown below. Has anyone faced this kind of issue before. am I choosing wrong character set or collation?
Reference
https://dev.mysql.com/doc/refman/5.7/en/faqs-cjk.html#faq-cjk-why-cjk-fail-searches
CREATE TABLE testing (test VARCHAR(500) CHARACTER SET utf8 COLLATE utf8_unicode_ci);
INSERT INTO testing VALUES('薛');
INSERT INTO testing VALUES('薛𦆱萍'); -- ERROR - MySQL Database Error: Incorrect string value: '\xF0\xA6\x86\xB1\xE8\x90...' for column 'test' at row 1
select * from testing;
According to Unicode character inspector the UTF encoding for 薛𦆱萍 is:
薛 = E8 96 9B
𦆱 = F0 A6 86 B1
萍 = E8 90 8D
MySQL complaints about this:
\xF0\xA6\x86\xB1\xE8\x90
So everything is apparently correct, save for a little implementation detail about utf8_unicode_ci which, in MySQL, is an incomplete UTF-8 encoding that only accepts up to three byte characters. Thus 𦆱 cannot be stored as utf8_unicode_ci.
You need to switch to some utf8mb4_... encoding.
In addition to having the column set to utf8mb4, you must also tell MySQL that the client is speaking utf8mb4 (not just utf8). For some clients, this is best done when making the connection, for some there is a secondary command, such as SET NAMES utf8mb4 which should be performed right after connecting.
Debugging Q&A: Trouble with UTF-8 characters; what I see is not what I stored
That seems to be a rather unusual (or new?) Chinese character; even http://unicode.scarfboy.com/?s=f0a686b1 fails to show the graphic.
I was trying to determine an error in a java program that loads MySQL tables every night.
Error in the log was java.sql.SQLException: Incorrect string value:
'\xEF\xBF\xBD\xEF\xBF\xBD...' for column 'manager' at row 1.
Finally determined there was a new name in the data (loading from a flat file) - FRANÇOIS - and it was the cedilla that was giving the error. Program still loaded everything, just left that field blank.
When I ran a SHOW FULL COLUMNS FOR tablename, it was latin1_swedish_ci. I know very little about collation, charsets.
What should I change the collation to in order for it to accept this?
(To long for a comment)
Need to see more details.
Don't use latin1; use utf8.
Connect with ?useUnicode=yes&characterEncoding=UTF-8 in the getConnection() call
Use CHARACTER SET utf8 in the table and/or column definition. Please provide SHOW CREATE TABLE for confirmation.
EFBFBD is the "replacement" character, implying that you had garbage coming it.
Loading a flat file -- Can you get the hex of Ç from the file? If it is C7 it is latin1 and you should specify latin1 on the load. Is it LOAD DATA? Or something else?
If it is C387 then it is utf8; good.
More discussion, debugging, best practice, etc: Trouble with utf8 characters; what I see is not what I stored
Terminology: "Collation" (eg, latin1_swedish_ci) refers to sort order. Your problem is with "Character set" (eg, latin1 or utf8).
I am unable to find the exact solution for MySQL
The thing is the column supports by default UTF-8 encoding which consists of 3 bytes. The Indian Rupee Symbol, since it is new has a 4 byte encoding. So we have to change the character encoding to utf8_general_ci by,
ALTER TABLE test_tb MODIFY COLUMN col VARCHAR(255)
CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
After executing the above query simply execute the following query to insert the symbol,
insert into test_tb values("₹");
Ta-Da!!!
You are talking Oracle, yet it is tagged MySQL. Which do you want? And what language and/or client tool are you using?
Copy and paste it. Which Rupee do you like? ৲ ৳ ૱ ௹ ₨ ꠸
Probably you want this one:
UNHEX('E282A8') = '₨'
which is U+20A8 or 8360 in non-MySQL contexts
You need to have CHARACTER SET utf8 on the table/column.
You need to have done SET NAMES utf8 (or equivalent) when connecting.
Simplest way to do it is, utf8mb4 stores all the symbols
ALTER TABLE AsinBuyBox CONVERT TO CHARACTER SET utf8mb4;
I've been using for a long time a database/connection with the wrong encoding, resulting the hebrew language characters in the database to display as unknown-language characters, as the example shows below:
I want to re-import/change the database with the inserted-wrong-encoded characters to the right encoded characters, so the hebrew characters will be displayed as hebrew characters and not as unknown parse like *"× ×תה מסכי×,×× ×©×™× ×ž×¦×™×¢×™× ×œ×™ כמה ×”× "*
For the record, when I display this unknown characters sql data with php - it shows as hebrew. when I'm trying to access it from the phpMyAdmin Panel - it shows as jibrish (these unknown characters).
Is there any way to fix it although there is some data already inserted in the database?
That feels like "double-encoded" Hebrew strings.
This partially recovers the text:
UNHEX(HEX(CONVERT('× ×תה מסכי×,××' USING latin1)))
--> '� �תה מסכי�,��
I do not know what leads to the � symbols.
Please do SELECT col, HEX(col) FROM ... WHERE ...; for some cell. I would expect שלום to give hex D7A9D79CD795D79D if it were correctly stored. For "double encoding", I would expect C397C2A9C397C593C397E280A2C397C29D.
Please provide the output from that SELECT, then I will work on how to recover the data.
Edit
Here's what I think happened.
The client had characters encoded as utf8; and
SET NAMES latin1 lied by claiming that the client had latin1 encoding; and
The column in the table declared CHARACTER SET utf8.
Yod did not jump out as a letter, so it took a while to see it. CONVERT(BINARY(CONVERT('×™×™123' USING latin1)) USING utf8) -->יי123
So, I am thinking that that expression will clean up the text. But be cautious; try it on a few rows before 'fixing' the entire table.
UPDATE table SET col = CONVERT(BINARY(CONVERT(col USING latin1)) USING utf8) WHERE ...;
If that does not work, here are 4 fixes for double-encoding that may or may not be equivalent. (Note: BINARY(xx) is probably the same as CONVERT(xx USING binary).)
I am not sure that you can do anything about the data that has already been stored in the database. However, you can import hebrew data properly by making sure you have the correct character set and collation.
the db collation has to be utf8_general_ci
the collation of the table with hebrew has to be utf8_general_ci
for example:
CREATE DATABASE col CHARACTER SET utf8 COLLATE utf8_general_ci;
CREATE TABLE `col`.`hebrew` (
`id` INT NOT NULL AUTO_INCREMENT,
`heb` VARCHAR(45) NOT NULL,
PRIMARY KEY (`id`)
) CHARACTER SET utf8
COLLATE utf8_general_ci;
INSERT INTO hebrew(heb) values ('שלום');
While creating database for my website I used below syntax.
CREATE DATABASE myDatabase DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
Now while my client is entering arabic characters, he see some weird output. I am using JSF 2.0 for web pages.
What changes do I need to make so that I can enter Arabic or any characters in my site and it get stored in DB.
Edit 1
While I am printing the data, I am seeing output as شسÙ?بشسÙ? بشسÙ?ب شسÙ?ب
Note:
I am using web application using JSF 2.0
You should set UTF8 charset for the connection before the inserting/reading data -
SET NAMES utf8;
INSERT INTO table VALUES(...);
SELECT * FROM table;
Use N'' when you insert data values, This denotes that the subsequent string is in Unicode (the N actually stands for National language character set)
INSERT INTO table VALUES(N'ArabicField');
I think you must use cp1256_general_ci instead of utf8_general_ci,
and don't forget to set the collation of the database and all fields that may contain Arabic words to utf8_general_ci.