mysql在多個記錄中的select查詢中通過id獲取名稱

Question

我一直在mysql查詢中停留。我有一個僱員表，其字段是id，姓名，bossid和bossid是員工的父母id。

我如何編寫查詢以這種格式打印數據

id name  boss 
1 rajesh rajesh 
2 vijay rajesh 
3 ravi  vijay 

Answer 1

剛剛加入表本身：

Select t1.id as id 
    , t1.name as Name 
    , t2.name as boss 
    from employee t1 
    join employee t2 
    on t1.bossid = t2.id 

Answer 2

SELECT id, name, 
    (SELECT B.name from `users` B WHERE B.id = A.bossid) bossname 
    FROM `users` A 

試試這個http://sqlfiddle.com/#!9/ddb50/2