How Can I Retrieve Character Sets in MySQL Databases, Tables, and Columns?

MySQL database, table and column character set query methods

Correct identification of the character set used by a MySQL database, table, or column is critical to ensuring data processing and interoperability. Here's how to get this information using a SQL query:

Database character set

Get the default character set for a specific database:

SELECT default_character_set_name
FROM information_schema.SCHEMATA
WHERE schema_name = "mydatabasename";

Table character set

Determine the character set of the table:

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 = "mydatabasename"
  AND T.table_name = "tablename";

Column character set

Get the character set of a specific column:

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

By executing these queries, you can accurately determine the character set used by your MySQL database, tables, and columns, ensuring proper data management and character encoding.

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