A new row for each record - sql

Question

I would like the results to produce a new row in each instance where a condition is met. I'm using a CASE statement but this isn't the way to go since once the first condition is met it stops evaluating the field.
SELECT
Reviews.ReviewID,
CASE
WHEN Score_CorrectID = 0 THEN 'Correct ID Right Party Authentication'
WHEN Score_ProperlyIdentified = 0 THEN 'PCA Properly Identified Itself'
WHEN Score_MiniMiranda = 0 THEN 'Mini-Miranda'
END AS [Error Type]
FROM Reviews INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID LEFT JOIN
PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID
WHERE
(Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda =
0)
This produces this:
I would like this:

Answer 1

Use apply:
SELECT r.ReviewID, v.error_type
FROM Reviews r INNER JOIN
PCAs
ON r.PCAID = PCAs.PCAID LEFT JOIN
PCARebuttal pr
ON r.ReviewID = pr.ReviewID OUTER APPLY
(SELECT *
FROM (VALUES (Score_CorrectID, 'Correct ID Right Party Authentication'),
(Score_ProperlyIdentified, 'PCA Properly Identified Itself'),
(Score_MiniMiranda, 'Mini-Miranda')
) v(score, error_type)
WHERE score = 0
) v
WHERE (Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda = 0);
That said, I would probably just concatenate the values into a single column:
SELECT r.ReviewID,
( (CASE WHEN Score_CorrectID = 0 THEN 'Correct ID Right Party Authentication; ' ELSE '' END) +
(CASE WHEN Score_ProperlyIdentified = 0 THEN 'PCA Properly Identified Itself; ' ELSE '' END) +
(CASE WHEN Score_MiniMiranda = 0 THEN 'Mini-Miranda;' ELSE '' END)
) as error_types
FROM Reviews r INNER JOIN
PCAs
ON r.PCAID = PCAs.PCAID LEFT JOIN
PCARebuttal pr
ON r.ReviewID = pr.ReviewID OUTER APPLY
(SELECT *
FROM (VALUES ()
) v(score, error_type)
WHERE score = 0
) v
WHERE (Score_CorrectID = 0 OR Score_ProperlyIdentified = 0 OR Score_MiniMiranda = 0);

Answer 2

Instead of using case, you can use union all instead:
SELECT
Reviews.ReviewID,
'Correct ID Right Party Authentication' AS [Error Type]
FROM Reviews
INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID
LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID
WHERE Score_CorrectID = 0
UNION ALL
SELECT
Reviews.ReviewID,
'PCA Properly Identified Itself' AS [Error Type]
FROM Reviews
INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID
LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID
WHERE Score_ProperlyIdentified = 0
UNION ALL
SELECT
Reviews.ReviewID,
'Mini-Miranda' AS [Error Type]
FROM Reviews
INNER JOIN PCAs ON Reviews.PCAID = PCAs.PCAID
LEFT JOIN PCARebuttal ON Reviews.ReviewID = PCARebuttal.ReviewID
WHERE Score_MiniMiranda = 0