mysql实现sql server 中rownumber
2016-05-16 18:13
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SELECT * FROM (
SELECT
@row_number := CASE
WHEN @Opportunity_Id = OpportunityId THEN @row_number + 1
ELSE 1
END AS num,
@Opportunity_Id := OpportunityId AS OpportunityId,
ActualRevenue,
DESCRIPTION,
ModifiedOn
FROM
OpportunityClose,( SELECT @Opportunity_Id := '',@row_number := 0) AS t
ORDER BY OpportunityId, ModifiedOn DESC
) re WHERE re.num=1
SELECT
@row_number := CASE
WHEN @Opportunity_Id = OpportunityId THEN @row_number + 1
ELSE 1
END AS num,
@Opportunity_Id := OpportunityId AS OpportunityId,
ActualRevenue,
DESCRIPTION,
ModifiedOn
FROM
OpportunityClose,( SELECT @Opportunity_Id := '',@row_number := 0) AS t
ORDER BY OpportunityId, ModifiedOn DESC
) re WHERE re.num=1
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