什么是(默认的)字符集:
MySQL数据库 MySQL表 MySQL列
什么是(默认的)字符集:
MySQL数据库 MySQL表 MySQL列
当前回答
数据库:
SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;
示例输出:
mysql> SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;
+----------------------------+---------+--------------------+
| database | charset | collation |
+----------------------------+---------+--------------------+
| information_schema | utf8 | utf8_general_ci |
| drupal_demo1 | utf8 | utf8_general_ci |
| drupal_demo2 | utf8 | utf8_general_ci |
| drupal_demo3 | utf8 | utf8_general_ci |
| drupal_demo4 | utf8 | utf8_general_ci |
| drupal_demo5 | latin1 | latin1_swedish_ci |
...
+----------------------------+---------+--------------------+
55 rows in set (0.00 sec)
mysql>
其他回答
数据库:
USE your_database_name;
show variables like "character_set_database";
-- or:
-- show variables like "collation_database";
参考本页。查阅MySQL手册
表:
SHOW TABLE STATUS将列出所有的表。
使用过滤:
SHOW TABLE STATUS where name like 'table_123';
我总是看SHOW CREATE TABLE mydatabase。mytable。
对于数据库,似乎需要查看SELECT DEFAULT_CHARACTER_SET_NAME FROM information_schema.SCHEMATA。
数据库:
SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;
示例输出:
mysql> SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;
+----------------------------+---------+--------------------+
| database | charset | collation |
+----------------------------+---------+--------------------+
| information_schema | utf8 | utf8_general_ci |
| drupal_demo1 | utf8 | utf8_general_ci |
| drupal_demo2 | utf8 | utf8_general_ci |
| drupal_demo3 | utf8 | utf8_general_ci |
| drupal_demo4 | utf8 | utf8_general_ci |
| drupal_demo5 | latin1 | latin1_swedish_ci |
...
+----------------------------+---------+--------------------+
55 rows in set (0.00 sec)
mysql>
SELECT TABLE_SCHEMA, TABLE_NAME, CCSA.CHARACTER_SET_NAME AS DEFAULT_CHAR_SET, COLUMN_NAME, COLUMN_TYPE, C.CHARACTER_SET_NAME FROM information_schema.TABLES AS T JOIN information_schema.COLUMNS AS C USING (TABLE_SCHEMA, TABLE_NAME) JOIN information_schema.COLLATION_CHARACTER_SET_APPLICABILITY AS CCSA ON (T.TABLE_COLLATION = CCSA.COLLATION_NAME) WHERE TABLE_SCHEMA=SCHEMA() AND C.DATA_TYPE IN ('enum', 'varchar', 'char', 'text', 'mediumtext', 'longtext') ORDER BY TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME ;