Master PostgreSQL Transactions in DataGrip: BEGIN, COMMIT, ROLLBACK Explained

What Is a Transaction and Why It Matters

A transaction groups related database operations into an indivisible unit that follows the ACID properties: Atomicity (all or nothing), Consistency (state remains valid), Isolation (concurrent transactions don’t interfere), and Durability (committed changes survive crashes).

DataGrip Practical Guide

Step 1: Connect to PostgreSQL – Configure the server IP, port (default 5432), database name, username, and password in DataGrip’s Database → + → Data Source → PostgreSQL dialog and test the connection.

Step 2: Open a Query Console – Right‑click the connected data source (e.g., test_db) and choose New → Query Console to get a SQL editor.

Step 3: Begin a Transaction – In the console type: BEGIN; DataGrip will show a “Transaction: Active” indicator.

Step 4: Execute Your Operations – For example, simulate a transfer between two accounts:

UPDATE accounts SET balance = balance - 100 WHERE name = 'UserA';
UPDATE accounts SET balance = balance + 100 WHERE name = 'UserB';

Select and run the statements (or run them together). The changes are visible only to your session until you commit.

Step 5: Commit the Transaction – When all statements succeed, finalize the changes: COMMIT; DataGrip will change the status to “Committed”, and the modifications become permanent for all connections.

Step 6: Rollback the Transaction – If any statement fails or you change your mind, undo everything: ROLLBACK; DataGrip will display “Rolled back”, and the database returns to the state before BEGIN.

Common Pitfalls and Tips

All commands ( BEGIN, UPDATE, COMMIT, ROLLBACK) must be executed in DataGrip’s query console.

Transaction boundaries: BEGIN; starts, COMMIT; or ROLLBACK; ends.

Before committing, only your session sees the changes; other connections see the old data, illustrating isolation.

If the connection drops before a commit, PostgreSQL automatically rolls back the active transaction.

Different DataGrip versions may rearrange UI elements, but the core transaction commands remain the same.

When running PostgreSQL in Docker, ensure the container’s volume persists data so the durability (D) aspect of ACID is maintained.

Conclusion

Transactions are not magic—they are a “safety bag” that guarantees your database operations are atomic, consistent, isolated, and durable. Using DataGrip, you can manage BEGIN, COMMIT, and ROLLBACK as easily as writing ordinary SQL, with clear visual feedback.