Sono su MySQL 5.5.21 e sto provando a inserire il carattere faccina '\ xF0 \ x9F \ x98 \ x8A'. Ma per la mia vita, non riesco a capire come farlo.
Secondo vari forum che ho letto, è possibile. Ma ogni volta che lo provo, i dati vengono troncati.
mysql> INSERT INTO hour ( `title`, `content`, `guid` , `published` , `lang` , `type` ,
`indegree` , `lon` , `lat` , `state` , `country` , `hour` )
VALUES ( "title" , "content 😊 content" , "guid" , 1, 1,
"WEBLOG", 1, 1, 1, "state" , "country" , 1 );
Query OK, 1 row affected, 2 warnings (0.00 sec)
mysql> show warnings;
+---------+------+-------------------------------------------------------------------------------+
| Level | Code | Message |
+---------+------+-------------------------------------------------------------------------------+
| Warning | 1366 | Incorrect string value: '\xF0\x9F\x98\x8A ...' for column 'content' at row 1 |
| Warning | 1265 | Data truncated for column 'published' at row 1 |
+---------+------+-------------------------------------------------------------------------------+
2 rows in set (0.00 sec)
mysql> select LAST_INSERT_ID();
+------------------+
| LAST_INSERT_ID() |
+------------------+
| 687302 |
+------------------+
1 row in set (0.00 sec)
mysql> select * from hour where id = 687302;
+--------+-------+----------+------+---------------------+
| id | title | content | guid | published |
+--------+-------+----------+------+---------------------+
| 687302 | title | content | guid | 0000-00-00 00:00:00 |
+--------+-------+----------+------+---------------------+
1 row in set (0.00 sec)
Ma la mia definizione di tabella è la seguente.
CREATE TABLE `hour` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`title` varchar(255) CHARACTER SET utf8 NOT NULL,
`content` text CHARACTER SET utf8 NOT NULL,
`guid` varchar(255) CHARACTER SET utf8 NOT NULL,
`published` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`lang` tinyint(3) unsigned NOT NULL,
`type` enum('WEBLOG','MICROBLOG') CHARACTER SET utf8 DEFAULT NULL,
`indegree` int(4) unsigned NOT NULL,
`lon` float DEFAULT NULL,
`lat` float DEFAULT NULL,
`state` varchar(50) CHARACTER SET utf8 DEFAULT '',
`country` varchar(50) CHARACTER SET utf8 DEFAULT '',
`hour` int(2) DEFAULT NULL,
`gender` enum('MALE','FEMALE') CHARACTER SET utf8 DEFAULT NULL,
`time_zone` varchar(45) CHARACTER SET utf8 DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=MEMORY AUTO_INCREMENT=687560 DEFAULT CHARSET=utf8mb4 KEY_BLOCK_SIZE=288
Si può vedere che sto usando CHARSET = utf8mb4. Sicuramente ciò corregge i problemi relativi all'uso di caratteri multibyte?
Ok, quindi non ho notato:
`content` text CHARACTER SET utf8 NOT NULL,
L'ho corretto ora, ma ottengo comunque risultati funky.
CREATE TABLE `hourtmp` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`title` varchar(255) CHARACTER SET utf8 NOT NULL,
`content` text NOT NULL,
`guid` varchar(255) CHARACTER SET utf8 NOT NULL,
`published` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`lang` tinyint(3) unsigned NOT NULL,
`type` enum('WEBLOG','MICROBLOG') CHARACTER SET utf8 DEFAULT NULL,
`indegree` int(4) unsigned NOT NULL,
`lon` float DEFAULT NULL,
`lat` float DEFAULT NULL,
`state` varchar(50) CHARACTER SET utf8 DEFAULT '',
`country` varchar(50) CHARACTER SET utf8 DEFAULT '',
`hour` int(2) DEFAULT NULL,
`gender` enum('MALE','FEMALE') CHARACTER SET utf8 DEFAULT NULL,
`time_zone` varchar(45) CHARACTER SET utf8 DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=MEMORY AUTO_INCREMENT=687563 DEFAULT CHARSET=utf8mb4 KEY_BLOCK_SIZE=288 |
mysql> INSERT INTO hourtmp ( `title`, `content`, `guid` , `published` , `lang` , `type` , `indegree` ,
`lon` , `lat` , `state` , `country` , `hour` ) VALUES ( "title" , "content 😊 content" ,
"guid" , 1, 1, "WEBLOG", 1, 1, 1, "state" , "country" , 1 );
Query OK, 1 row affected, 2 warnings (0.00 sec)
mysql> show warnings;
| Level | Code | Message |
| Warning | 1366 | Incorrect string value: '\xF0\x9F\x98\x8A ...' for column 'content' at row 1 |
| Warning | 1265 | Data truncated for column 'published' at row 1 |
2 rows in set (0.00 sec)
mysql> select * from hourtmp;
+--------+-------+-----------------------+
| id | title | content |
+--------+-------+-----------------------+
| 687560 | title | content ???? content |
| 687561 | title | content ???? content |
+--------+-------+-----------------------+
uft8
per il TEXT
campo