-- 获取所有数据库名 SELECT `SCHEMA_NAME` FROM `information_schema`.`SCHEMATA`; -- 获取指定数据库的所有表名 SELECT `TABLE_NAME` FROM `information_schema`.`TABLES` WHERE `TABLE_SCHEMA` = '数据库名'; -- 获取指定数据库的所有字段名 SELECT `TABLE_SCHEMA`, `TABLE_NAME`, `COLUMN_NAME`, `DATA_TYPE`, `IS_NULLABLE`, `COLUMN_DEFAULT` FROM `information_schema`.`COLUMNS` WHERE `TABLE_SCHEMA` = '数据库名'; -- 获取指定表的所有字段名 SELECT `TABLE_SCHEMA`, `TABLE_NAME`, `COLUMN_NAME`, `DATA_TYPE`, `IS_NULLABLE`, `COLUMN_DEFAULT` FROM `information_schema`.`COLUMNS` WHERE `TABLE_SCHEMA` = '数据库名' AND `TABLE_NAME` = '表名';
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