Question

我正在尝试使用sql将另一个表中的记录插入Access中的表中。我已粘贴以下声明。我想插入ImportMetricsIDs01262015中存在但不存在于ShouldImportMetricsIDs中的记录。它运行完美，没有任何错误，但即使我在实际添加新记录时也不会插入任何内容。

INSERT INTO ShouldImportMetricsIDsTable ( [Formulary ID], [Market Segment] )
SELECT ImportMetricsIDs01262015.[Formulary ID], ImportMetricsIDs01262015.[Market Segment]
FROM ImportMetricsIDs01262015
WHERE NOT EXISTS (SELECT *
FROM ShouldImportMetricsIDsTable);

Answer 1

您需要一个关联条款。子查询只检查表是否为空。类似的东西：

INSERT INTO ShouldImportMetricsIDsTable( [Formulary ID], [Market Segment] )
    SELECT im.[Formulary ID], im.[Market Segment]
    FROM ImportMetricsIDs01262015 as im
    WHERE NOT EXISTS (SELECT 1
                      FROM ShouldImportMetricsIDsTable as sim
                      WHERE im.[Formulary ID] = sim.[Formulary ID] AND
                            im.[Market Segment] = sim.[Market Segment]
                     );

Answer 2

您需要将NOT Exist查询与ImportMetricsIDs01262015表

相关联

此代码假设FormularyID是两个表中的键。

INSERT INTO ShouldImportMetricsIDsTable (
    [Formulary ID]
    ,[Market Segment]
    )
SELECT ImportMetricsIDs01262015.[Formulary ID]
    ,ImportMetricsIDs01262015.[Market Segment]
FROM ImportMetricsIDs01262015
WHERE NOT EXISTS (
        SELECT *
        FROM ShouldImportMetricsIDsTable
        where ShouldImportMetricsIDsTable.[Formulary ID] = ImportMetricsIDs01262015.[Formulary ID]
        );

Answer 3

关键字＆＃34; TOP＆＃34;在访问中是必要的，在代码中使用粗体和斜体

INSERT INTO ShouldImportMetricsIDsTable( [Formulary ID], [Market Segment] )
SELECT im.[Formulary ID], im.[Market Segment]
FROM ImportMetricsIDs01262015 as im
WHERE NOT EXISTS (SELECT 
***TOP*** 1
                  FROM ShouldImportMetricsIDsTable as sim
                  WHERE im.[Formulary ID] = sim.[Formulary ID] AND
                        im.[Market Segment] = sim.[Market Segment]
                 );

插入INTO NOT EXISTS SQL访问

3 个答案: