mysql - Query to get children records of a parent -

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i have following table.

+-------+--------+-------+ |     id|    name| parent| +-------+--------+-------+ |      0|       a|     -1| |      1|       b|      0| |      2|       c|      1| |      3|       d|      2| |      4|       e|      2| |      5|       f|      2| |      6|       g|      2| |      7|       h|      2| |      8|       i|      2| +-------+--------+-------+

-1 parent means has no parent. hierarchy can go upto 7-8 levels. need children (direct + indirect). tried like:

select id, name, @pv:=id 'parent' tbl join (select @pv:=-1)tmp parent=@pv

but not work.

try query

select t1.name lev1, t2.name lev2 tbl1 t1 left join tbl1 t2 on t2.parent = t1.id t1.id = 2;

expected output

+-------+--------+ |   lev1|    lev2| +-------+--------+ |      c|       d| |      c|       e| |      c|       f| |      c|       g| |      c|       h| |      c|       i| +-------+--------+

referance


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