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Rule description

• CASE expressions should end with ELSE clauses

Non-compliant Code Example

SELECT OrderID, Quantity,
CASE
    WHEN Quantity > 30 THEN 'The quantity is greater than 30'
    WHEN Quantity = 30 THEN 'The quantity is 30'
END AS QuantityText  --Non compliant code
FROM OrderDetails;

Compliant Code Example

SELECT OrderID, Quantity,
CASE 
    WHEN Quantity > 30 THEN 'The quantity is greater than 30'
    WHEN Quantity = 30 THEN 'The quantity is 30'
    ELSE 'The quantity is under 30'  --Compliant code
END AS QuantityText
FROM OrderDetails;