Convert IBM DB2 to PostgreSQL
A free online converter that translates IBM DB2 queries into PostgreSQL. Paste your SQL, press Translate, and Query Studio rewrites the syntax that differs between the two databases — instantly, with no login and nothing stored.
IBM DB2 → PostgreSQL example
Here is a real IBM DB2 query and the PostgreSQL output Query Studio produces:
SELECT u.id, u.name, COUNT(o.id) AS orders
FROM users u
LEFT JOIN orders o ON o.user_id = u.id
WHERE u.created_at > '2024-01-01' AND u.active = 1
GROUP BY u.id, u.name
HAVING COUNT(o.id) > 3
ORDER BY orders DESC
FETCH FIRST 10 ROWS ONLY;SELECT
u.id,
u.name,
COUNT(o.id) AS orders
FROM
users u
LEFT JOIN orders o ON o.user_id = u.id
WHERE
u.created_at > '2024-01-01'
AND u.active = 1
GROUP BY
u.id,
u.name
HAVING
COUNT(o.id) > 3
ORDER BY
orders DESC
LIMIT
10What changes from IBM DB2 to PostgreSQL
- Row limiting is converted from IBM DB2's FETCH FIRST n ROWS ONLY to PostgreSQL's LIMIT n, including any OFFSET for pagination.
- The result is re-indented and keyword-cased in PostgreSQL style so it's ready to paste and run.
How to convert IBM DB2 to PostgreSQL
- Open the Query Studio editor and choose IBM DB2 as the “From” dialect.
- Choose PostgreSQL as the “To” dialect.
- Paste your IBM DB2 query and press Translate — copy the PostgreSQL result.
Try it with your own query
The editor is preloaded with IBM DB2 → PostgreSQL. You can also explain, format, validate and analyze the result.
Convert IBM DB2 to PostgreSQL now →IBM DB2 to PostgreSQL FAQ
Is this IBM DB2 to PostgreSQL converter free?
Yes — it's completely free with no account, no sign-up and no usage limits. Your query is processed to return the result and never stored.
Is the IBM DB2 to PostgreSQL conversion accurate?
Query Studio rewrites syntax deterministically using real SQL parsers, so it gives the same result every time. It handles the common differences automatically; always review complex, vendor-specific queries before running them in production.