What is the (default) charset for:
- MySQL database
- MySQL table
- MySQL column
Answers
Here's how I'd do it -
For Schemas:
SELECT default_character_set_name FROM information_schema.SCHEMATA
WHERE schema_name = "schemaname";
For Tables:
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";
For Columns:
SELECT character_set_name FROM information_schema.`COLUMNS`
WHERE table_schema = "schemaname"
AND table_name = "tablename"
AND column_name = "columnname";
For databases:
USE your_database_name;
show variables like "character_set_database";
-- or:
-- show variables like "collation_database";
Cf. this page. And check out the MySQL manual
For tables:
SHOW TABLE STATUS
will list all the tables.
Filter using:
SHOW TABLE STATUS where name like 'table_123';
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 ;
For tables and columns:
show create table your_table_name
For databases:
SHOW CREATE DATABASE "DB_NAME_HERE";
In creating a Database (MySQL), default character set/collation is always LATIN, instead that you have selected a different one on initially creating your database
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