mysql按字母順序獲取表列名

Question

是否可以查詢MySQL數據庫以按字母順序獲取表的列名？ 我知道

SHOW COLUMNS `table_name`;

要么

DESCRIBE `table_name`;

將為我提供表中列的列表（以及其他信息），但是可以更改查詢以便按字母順序排列列。 添加ORDER BY'Field'不起作用，它給出了語法錯誤。

Answer 1

ANSI INFORMATION_SCHEMA表（在本例中為INFORMATION_SCHEMA.COLUMNS）在MySQL中提供了更大的靈活性：

SELECT c.column_name
  FROM INFORMATION_SCHEMA.COLUMNS c
 WHERE c.table_name = 'tbl_name'
-- AND c.table_schema = 'db_name'    
ORDER BY c.column_name

Answer 2

每個字段都列出兩次，直到我group by column name使用group by column name

 select c.COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS c 
 where c.TABLE_NAME = `'tbl_name'` 
 group by c.column_name 
 order by c.column_name

Answer 3

如果您需要更多詳細信息，請在下面查詢非常方便：

   SELECT COLUMN_NAME  as 'Field',
   COLUMN_TYPE    as 'Type',
   IS_NULLABLE    as 'Null',
   COLUMN_KEY     as 'Key',
   COLUMN_DEFAULT as 'Default',
   EXTRA          as 'Extra'
   from INFORMATION_SCHEMA.COLUMNS
   where TABLE_NAME   = 'my table' and
   TABLE_SCHEMA = 'my database'
   add ordering
   order by Type;  --