子查询返回超过 1 value.how 来处理这个并获得多个 id

Question

SET @IdInternalSelection = (
    SELECT iss.IdInternalSelection 
    FROM HesSelection.InternalSelection iss 
    INNER JOIN HesSelection.ExtractedLabInternalSelection2CatPatientActivity cpa 
       ON iss.IdInternalSelection = cpa.IdInternalSelection               
    WHERE cpa.IdCatPatientActivity = @IdCatPatientActivity)

我将从另一个查询中获得 IdCatPatientActivity 的输出。

基于此 IdCatPatientActivity，我需要设置 IdInternalSelection，但某些 IdCatPatientActivity id 会失败。

这是因为 IdCatPatientActivity 在某些情况下与多个 IdInternalSelection 相关联

我需要的是获取与 IdCatPatientActivity 关联的所有 IdInternalSelection，然后循环每个 IdInternalSelection 并将其插入不同的 table。

我没有获得多个 IdInternalSelection ID。有人可以帮帮我吗？

Answer 1

您需要变量的类型为TABLE。

declare @IdInternalSelection  table
(
    Id varchar(1000)
)

insert into @IdInternalSelection
SELECT iss.IdInternalSelection 
                            FROM HesSelection.InternalSelection iss 
                            INNER JOIN HesSelection.ExtractedLabInternalSelection2CatPatientActivity cpa ON iss.IdInternalSelection = cpa.IdInternalSelection                 
                            WHERE cpa.IdCatPatientActivity = @IdCatPatientActivity

子查询返回超过 1 value.how 来处理这个并获得多个 id

Subquery returned more than 1 value.how to handle this and get multiple ids

.net

sql-server

cursors

cursor