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To view the status of indexes in a table use the following statement;  SHOW INDEX FROM <table>;  Example:  mysql> SHOW INDEX FROM countrylanguage\G  *************************** 1. row ***************************         Table: countrylanguage  Non_unique: 0     Key_name: PRIMARY  Seq_in_index: 1  Column_name: CountryCode     Collation: A  Cardinality: NULL     Sub_part: NULL       Packed: NULL         Null:  Index_type: BTREE       Comment:  *************************** 2. row ***************************         Table: countrylanguage  Non_unique: 0     Key_name: PRIMARY  Seq_in_index: 2  Column_name: Language     Collation: A  Cardinality: 984     Sub_part: NULL       Packed: NULL         Null:  Index_type: BTREE       Comment:  2 rows in set (0.16 sec)  The result of the  SHOW INDEX command done on the  CountryLanguage table lists two indexes;  CountryCode and Language.  This confirms the setting of a composite index in the CREATE TABLE  c