The DESCRIBE and EXPLAIN statements are synonyms, used either to obtain information about table structure or query execution plans. DESCRIBE语句和EXPLAIN语句是同义词，用于获取有关表结构或查询执行计划的信息。For more information, see Section 13.7.7.5, “SHOW COLUMNS Statement”, and Section 13.8.2, “EXPLAIN Statement”.有关更多信息，请参阅第13.7.7.5节，“SHOW COLUMNS语句”和第13.8.2节，“EXPLAIN语句”。