CODEWITHSUNDEEP
mysqlsqlselect
Bhupendra Dudhwal
Bhupendra Dudhwal

Reputation: 148

How to get name and manager name

How to get name and manager name 

+----+-----------+---------+
| id | name      | manager |
+----+-----------+---------+
|  1 | bhupendra |       0 |
|  2 | shyam     |       1 |
|  3 | ram       |       1 |
|  4 | geeta     |       2 |
|  5 | sita      |       1 |
+----+-----------+---------+

i need result like 

+-----------+-----------+
| name      | manager   |
+-----------+-----------+
| bhupendra |           |
| shyam     | bhupendra |
| ram       | bhupendra |
| geeta     | shyam     |
| sita      | bhupendra |
+-----------+-----------+

Upvotes: 0

Views: 231

Answers (3)

ScaisEdge
ScaisEdge

Reputation: 133380

You should use the same table twice using alias 

select a.name, b.name as manager 
from my_table a 
left join  my_table b on a.manager  = b.id

Upvotes: 0

Derviş Kayımbaşıoğlu
Derviş Kayımbaşıoğlu

Reputation: 30625

Check this out

with recursive cte (id, name, parent_id) as (
  select     id,
             name,
             manager
  from       employee
  union all
  select     p.id,
             p.name,
             p.manager
  from       employee e
  inner join cte
          on p.manager = cte.id
)
select * from cte;

Upvotes: 0

Mureinik
Mureinik

Reputation: 311808

You could self-join the id column on the manager column:

SELECT    e.name AS name, m.name AS manager
FROM      employee e
LEFT JOIN employee m ON m.id = e.manager

Upvotes: 1

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