如何查看MySQL数据库/表/列的字符集？
什么是（默认）字符集：
MySQL数据库
MySQL表
MySQL列
以下是我如何去做 -
对于模式：
SELECT default_character_set_name FROM information_schema.SCHEMATA
WHERE schema_name = "schemaname";
对于表格：
SELECT CCSA.character_set_name FROM information_schema.`TABLES` T,
information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` CCSA
WHERE CCSA.collation_name = T.table_collation
AND T.table_schema = "schemaname"
AND T.table_name = "tablename";
对于列：
SELECT character_set_name FROM information_schema.`COLUMNS`
WHERE table_schema = "schemaname"
AND table_name = "tablename"
AND column_name = "columnname";
对于列 ：
SHOW FULL COLUMNS FROM table_name;
对于数据库 ：
USE your_database_name;
show variables like "character_set_database";
-- or:
-- show variables like "collation_database";
参看 这一页。 并检查MySQL手册
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