SQLite - 刪除最低ID的行

Question

如何從具有最低rowid的表中刪除一行？ 謝謝。

Answer 1

DELETE FROM 
    MyTable 
WHERE 
    Id = (SELECT MIN(Id) FROM MyTable); 

Answer 2

DELETE FROM 
    tablename 
WHERE 
    rowid= (SELECT MIN(rowid) FROM tablename) 

Answer 3

在大多數情況下這樣的，ROWID是一個索引列。如果是這樣的情況下，多更快的解決方案是：

DELETE FROM 
    tablename 
WHERE 
    rowid= (SELECT rowid FROM tablename order by rowid limit 1) 

如果ROWID不是那麼索引：

DELETE FROM 
    tablename 
WHERE 
    rowid= (SELECT MIN(rowid) FROM tablename) 

我仍然測試的第一個，因爲它往往會更快，甚至如果rowid未編入索引。