SQL - 将SELECT语句的结果转换为存储过程中的参数

Question

考虑以下存储过程：

alter procedure getRisks @id int, @convertedRiskValue int
as
select top 1 table1.id, idRisk, riskValue from table1
left join table2
on table1.id = table2.id
where table1.id= @id
order by table2.id desc

• idRisk值始终在1-4之间变化，riskValue的变化范围为0-1000。

• 我想做什么？

  • 我想将riskValue转换为idRisk“类型”，如下所示：

，然后将其放入@convertedRiskValue并从select语句中返回。

有什么想法吗？

Answer 1

SELECT 
   riskValue,
   CASE 
     WHEN riskValue > -1 AND riskValue < 251 THEN 1
     WHEN riskValue > 250 AND riskValue < 501 THEN 2
     WHEN riskValue > 500 AND riskValue < 751 THEN 3
     WHEN riskValue > 750 AND riskValue < 1001 THEN 4
  END AS idRisk
FROM Table

Answer 2

试试这个：

alter procedure getRisks @id int, @convertedRiskValue int
as
select top 1 table1.id, CASE WHEN RiskValue >= 0 AND RiskValue <= 250 THEN 1 
WHEN RiskValue >= 251 and RiskValue <= 500 THEN 2
WHEN RiskValue >= 501 and RiskValue <= 750 THEN 3
WHEN RiskValue >= 751 and RiskValue <= 1000 THEN 4 end as idRiskType
 , riskValue from table1
left join table2
on table1.id = table2.id
where table1.id= @id
order by table2.id desc