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
正如前面所写的,SHOW FULL COLUMNS应该是获取列信息的首选方法。 缺少的是在不直接到达元数据表的情况下获取字符集的方法:
SHOW FULL COLUMNS FROM my_table WHERE Field = 'my_field'
SHOW COLLATION WHERE Collation = 'collation_you_got'
其他回答
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:
只需使用这些命令:
USE db_name;
SELECT @@character_set_database;
-- or:
-- SELECT @@collation_database;
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>
表:
SHOW TABLE STATUS将列出所有的表。
使用过滤:
SHOW TABLE STATUS where name like 'table_123';
列:
SHOW FULL COLUMNS FROM table_name;