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`; 

或

DESCRIBE `table_name`; 

給我列一個清單，在表格（連同其他信息），但它是可以改變的查詢，以獲得列按字母順序排序。添加ORDER BY'Field'不起作用，它給出了語法錯誤。

Answer 1

的ANSI INFORMATION_SCHEMA tables (in this case, INFORMATION_SCHEMA.COLUMNS)在MySQL提供了更多的靈活性：

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

每場被列入兩次，直到我用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

如果您想了解更多的細節，下面的查詢是非常方便的：

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; --