MySQL charset operation

mysql-charset.sql

SELECT default_character_set_name FROM information_schema.SCHEMATA S WHERE schema_name = "schemaname";

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";

SELECT character_set_name FROM information_schema.`COLUMNS` C WHERE table_schema = "schemaname" AND table_name = "tablename" AND column_name = "columnname";