Using DbForge Studio for Sql Server Enterprise Edition 2025.3.107 (License Type: Perpetual) :

My table (FundDocument ) has a PK defined : FundDocumentId INT NOT NULL , unique.
1) When I run this T-Sql it shows the record normally without problems when I go into edit mode:
SELECT
*
FROM funddocument
WHERE FundDocumentId = 103741;

2) But when I run this T-Sql it says "Unique key is missing" when I go into edit mode:
DECLARE @id INT = 103741;
SELECT
*
FROM funddocument
WHERE FundDocumentId = @id;