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情報カタログ
(mysql.info) drop-database
(mysql.info) data-definition
(mysql.info) drop-table
13.1.7 `DROP INDEX' Syntax
--------------------------
DROP INDEX INDEX_NAME ON TBL_NAME
`DROP INDEX' drops the index named INDEX_NAME from the table TBL_NAME.
This statement is mapped to an `ALTER TABLE' statement to drop the
index. See alter-table.
情報カタログ
(mysql.info) drop-database
(mysql.info) data-definition
(mysql.info) drop-table