mysql 查询表的字段的属性、注释、字段信息

• mysql查询表所有字段的属性和注释

select * from information_schema.columns where table_name='表名'

• mysql获取表的所有字段信息

SELECT
  column_name columnName,
  data_type dataType,
  column_comment columnComment,
  column_key columnKey,
  extra 
FROM
  information_schema.COLUMNS 
WHERE
  table_name = 'user' 
  AND table_schema = ( SELECT DATABASE ( ) ) 
ORDER BY
  ordinal_position