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-- 行业基础数据表：存储行业基础信息（已删除parent_industry_code和description字段）
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CREATE TABLE `t_industry_basic` (
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`industry_code` VARCHAR(20) NOT NULL COMMENT '行业代码（如802089.EI）',
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`industry_name` VARCHAR(50) NOT NULL COMMENT '行业名称（如"银行"）',
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`industry_level` TINYINT NOT NULL DEFAULT 2 COMMENT '行业级别（1=一级行业，2=二级行业，3=三级行业等）',
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`status` TINYINT NOT NULL DEFAULT 1 COMMENT '状态（1=正常，0=禁用）',
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`sort_order` INT NOT NULL DEFAULT 0 COMMENT '排序',
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`create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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`update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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-- 主键：行业代码
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PRIMARY KEY (`industry_code`),
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-- 索引：按行业级别查询优化
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INDEX `idx_t_industry_basic_level` (`industry_level`),
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-- 索引：按状态查询优化
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INDEX `idx_t_industry_basic_status` (`status`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='行业基础数据表';
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