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Developer-C 11.1
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CREATE TABLE Data (ID INT, Value INT) INSERT Data VALUES (1, 26), (2, 29), (3, 32), (4, 34), (5, 36), (6, 34), (7, 33), (8, 34), (9, 36), (10, 37) SELECT ID, Value FROM ( SELECT *, LAG(Value) OVER(ORDER BY Id) AS PreviousValue, LEAD(Value) OVER(ORDER BY Id) AS FollowingValue FROM Data ) A WHERE (A.Value < PreviousValue OR PreviousValue IS NULL) AND (A.Value < FollowingValue OR FollowingValue IS NULL) SELECT ID, Value FROM ( SELECT *, MIN(Value) OVER(ORDER BY Id ROWS BETWEEN 3 PRECEDING AND 3 FOLLOWING) AS LocalMinumum FROM Data ) A WHERE A.Value = LocalMinumum
ID
Value
1
26
7
33
ID
Value
1
26
7
33