Convert Oracle SQL Query to SQLite Query

Question

Hi,
I am new to SQLite and have requirement to write quries in SQLite format. As table structure is same in both the Oracle and SQLite database i have created queries in Oracle SQL. Now wanted to know is there any tool or package available which will convert my simple Oracle queries into SQLite format???
Please guide..
Regards,
Priyanka

Answer 1

with tree as (
select
level lev
,id
,parent_id
,sys_connect_by_path(id, '-') p
from test_temp
connect by
parent_id = prior id
start with parent_id is null
select
from tree t1
where exists (
select 1
from tree t2
where substr(t2.p, 1, length(t1.p)) = t1.p
  and regexp_count(t2.p, '-') = regexp_count(t1.p, '-') + 2
  -- if regexp_count is not available in your version or performs not well, below is an alternative
  -- and length(t2.p) - length(replace(t2.p, '-')) = length(t1.p) - length(replace(t1.p, '-')) + 2
LEV
ID
PARENT_ID
P
1
1
-1
2
3
1
-1-3
2
5
1
-1-5
1
2
-2
2
6
2
-2-6
3
14
6
-2-6-14