Question

我希望能够在一个脚本中提取两组数据，共有15条记录。

在我的场景中，我从某个城镇中提取成员，例如可以返回3个记录，然后我想从该特定状态中提取剩余的12个。

这是一个编码样本：

SELECT MemberID, a.UserName, a.MemberDisplayName, a.NYKABizName, a.PackageType
FROM Member a
WHERE a.Claimed = 'Y'
AND a.PrCity = 'Bridgewater'
AND a.PrStateID = 36
AND a.PackageType = 'E'
ORDER BY a.MemberDisplayName

SELECT MemberID, a.UserName, a.MemberDisplayName, a.NYKABizName, a.PackageType
FROM Member a
WHERE a.Claimed = 'Y'
AND a.PrStateID = 36
AND a.PackageType = 'E'
ORDER BY a.MemberDisplayName

我不希望将这两者组合成一个，我想要一个存储结果的临时虚拟表，然后在完成后返回虚拟表。

任何想法如何实现这一目标？

非常感谢， neojakey

Answer 1

您的virtual table看起来像这样

CREATE VIEW view_name AS
    SELECT * FROM
    (
    SELECT MemberID, a.UserName, a.MemberDisplayName, a.NYKABizName, a.PackageType
    FROM Member a
    WHERE a.Claimed = 'Y'
    AND a.PrCity = 'Bridgewater'
    AND a.PrStateID = 36
    AND a.PackageType = 'E'
    ORDER BY a.MemberDisplayName
    ) x 
    UNION 
    (
    SELECT MemberID, a.UserName, a.MemberDisplayName, a.NYKABizName, a.PackageType
    FROM Member a
    WHERE a.Claimed = 'Y'
    AND a.PrStateID = 36
    AND a.PackageType = 'E'
    ORDER BY a.MemberDisplayName
    ) y

Answer 2

您可以在数据适配器中传递多个select语句，以“;”分隔。

SqlDataAdapter dataAdapter = new SqlDataAdapter(“select * from table1;select * from table2”, connection);

DataSet ds = new DataSet();

dataAdapter.Fill(ds);

然后您可以使用ds.Tables [index]。

引用结果集

C# DataAdapter and DataSet with multiple table

使用一个SQL脚本提取两组数据

2 个答案: