mysql导出表字段信息

SELECT 
    COLUMN_NAME AS '字段名',
    COLUMN_TYPE AS '数据类型',
    IS_NULLABLE AS '是否允许为空',
    COLUMN_DEFAULT AS '默认值',
    COLUMN_COMMENT AS '注释'
FROM 
    INFORMATION_SCHEMA.COLUMNS 
WHERE 
    TABLE_SCHEMA = 'kpl-hy-yz'  -- 使用单引号包裹字符串值
    AND TABLE_NAME = 'wms_inventory_history';