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create table test (id int, f1 varchar(20), f2 varchar(10)); insert into test values (1, 'Nima', 'a'), (2, 'Eli', 'a'), (3, 'Arian', 'a') , (4, 'Ava', 'b'), (5, 'Arsha', 'b'), (6, 'Rozhan', 'c'), (7, 'Zhina', 'c');
SELECT t.id, t.f1, t.f2 FROM (SELECT @row_no:=CASE WHEN @db_names=d.f2 THEN @row_no+1 ELSE 1 END AS row_number , @db_names:= d.f2 , d.f2 , d.f1 , d.id FROM test d, (SELECT @row_no := 0,@db_names:='') x ORDER BY d.f2) t ORDER BY t.row_number, t.f2
id
f1
f2
1
Nima
a
4
Ava
b
6
Rozhan
c
2
Eli
a
5
Arsha
b
7
Zhina
c
3
Arian
a