1、通过information_schema.COLUMNS表
查询该表可得到所需字段信息
SELECT * FROM information_schema.COLUMNS;如下图所示:
2、示例下面截图是示例:
SQL语句如下
SELECT t.TABLE_SCHEMA AS 库名, t.TABLE_NAME AS 表名, t.COLUMN_NAME AS 字段名, t.COLUMN_TYPE AS 数据类型, CASE IFNULL(t.COLUMN_DEFAULT,'Null') WHEN '' THEN '空字符串' WHEN 'Null' THEN 'NULL' ELSE t.COLUMN_DEFAULT END AS 默认值, CASE t.IS_NULLABLE WHEN 'YES' THEN '是' ELSE '否' END AS 是否允许为空, t.COLUMN_COMMENT AS 字段说明 FROM information_schema.COLUMNS t WHERE t.TABLE_SCHEMA='feifei' AND t.TABLE_NAME='order_info'; 3、导出Excel点击导出结果即可导出
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