Dirty read with NOLOCK hint
Review this SQL (T-SQL / SQL Server) inventory-availability check used at checkout.
What a strong answer looks like
Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.
0:00 of about 28 min
Mark a line and say what kind of problem it is.0 findings
1CREATE PROCEDURE dbo.CanFulfill @sku INT, @qty INT, @ok BIT OUTPUT
2AS
3BEGIN
4 SET @ok = 0;
5 SELECT @ok = CASE WHEN on_hand >= @qty THEN 1 ELSE 0 END
6 FROM dbo.inventory WITH (NOLOCK)
7 WHERE sku = @sku;
8END
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.
Run or narrate your approach, then ask the coach.