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-- 行业基础数据表：存储行业基础信息
CREATE TABLE ` t_industry_basic ` (
` industry_code ` VARCHAR ( 20 ) NOT NULL COMMENT ' 行业代码（ ） ' ,
` industry_name ` VARCHAR ( 50 ) NOT NULL COMMENT ' 行业名称（如"银行"） ' ,
` industry_level ` TINYINT NOT NULL DEFAULT 2 COMMENT ' 行业级别（ ， ， ' ,
` parent_industry_code ` VARCHAR ( 20 ) NULL COMMENT ' 父级行业代码 ' ,
` description ` TEXT NULL COMMENT ' 行业描述 ' ,
` status ` TINYINT NOT NULL DEFAULT 1 COMMENT ' 状态（ ， ' ,
` sort_order ` INT NOT NULL DEFAULT 0 COMMENT ' 排序 ' ,
` create_time ` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT ' 创建时间 ' ,
` update_time ` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT ' 更新时间 ' ,
-- 主键：行业代码
PRIMARY KEY ( ` industry_code ` ) ,
-- 索引：按行业级别查询优化
INDEX ` idx_t_industry_basic_level ` ( ` industry_level ` ) ,
-- 索引：按状态查询优化
INDEX ` idx_t_industry_basic_status ` ( ` status ` )
) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4 COMMENT = ' 行业基础数据表 ' ;
