[Solved] Which SQL statement correctly inserts an event into an Outbox table within a transaction? — Ans: BEGIN TRANSACTION; INSERT INTO outbox(event_type, payload) VALUES... | Microservices

Microservices - Advanced Patterns

Which SQL statement correctly inserts an event into an Outbox table within a transaction?

ABEGIN TRANSACTION; INSERT INTO outbox(event_type, payload) VALUES ('OrderCreated', '{"orderId":123}'); COMMIT;

BINSERT INTO outbox(event_type, payload) VALUES ('OrderCreated', '{orderId:123}');

CCOMMIT; INSERT INTO outbox(event_type, payload) VALUES ('OrderCreated', '{"orderId":123}');

DBEGIN; SELECT * FROM outbox WHERE event_type = 'OrderCreated';

Step-by-Step Solution

Solution:

Step 1: Understand transaction syntax
Correct SQL transaction starts with BEGIN TRANSACTION and ends with COMMIT.
Step 2: Check event insertion correctness
BEGIN TRANSACTION; INSERT INTO outbox(event_type, payload) VALUES ('OrderCreated', '{"orderId":123}'); COMMIT; inserts event data as JSON string inside transaction correctly.
Final Answer:
BEGIN TRANSACTION; INSERT INTO outbox(event_type, payload) VALUES ('OrderCreated', '{"orderId":123}'); COMMIT; -> Option A
Quick Check:
SQL transaction insert = BEGIN TRANSACTION; INSERT INTO outbox(event_type, payload) VALUES ('OrderCreated', '{"orderId":123}'); COMMIT; [OK]

Quick Trick: Use BEGIN TRANSACTION and COMMIT to wrap inserts [OK]

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Which SQL statement correctly inserts an event into an Outbox table within a transaction?