SELECT
   "列名",
   "数据类型",
     "字段类型",
   "长度",
  "是否为空",
   "默认值",
  "备注"
FROM
 dual
union all
SELECT
  COLUMN_NAME 列名,
  COLUMN_TYPE 数据类型,
    DATA_TYPE 字段类型,
  CHARACTER_MAXIMUM_LENGTH 长度,
  IS_NULLABLE 是否为空,
  COLUMN_DEFAULT 默认值,
  COLUMN_COMMENT 备注
FROM
 INFORMATION_SCHEMA.COLUMNS
where

table_schema ='ceshidaoru'
AND

table_name  = 'sssdsds'