Select 更新查询多个字段、多个条件

这是一篇MS Access相关文章

如何将INSERT INTO语句更改为UPDATE语句

            DoCmd.RunSQL "INSERT INTO A_tblStagingTablesChecksHEADERS (Header, Header2) " _
                & "SELECT DISTINCT(SELECT F1 FROM tblStagingIssuerNames_ReverseRepos " _
                & "WHERE F1 = 'ISSUER CODE') as F1data, " _
                & "(SELECT F51 FROM tblStagingIssuerNames_ReverseRepos " _
                & "WHERE F51 = 'INSTRUMENT REFERENCE (BOE)') as F2data " _
                & "FROM tblStagingIssuerNames_ReverseRepos;"

我尝试了以下方法但未成功：

    DoCmd.RunSQL "UPDATE A_tblStagingTablesChecksHEADERS, tblStagingIssuerNames_ReverseRepos " _
                & "SELECT DISTINCT(SELECT F1 FROM tblStagingIssuerNames_ReverseRepos " _
                & "WHERE F1 = 'ISSUER CODE') as F1data, " _
                & "SELECT DISTINCT(SELECT F51 FROM tblStagingIssuerNames_ReverseRepos " _
                & "WHERE F51 = 'INSTRUMENT REFERENCE (BOE)') as F2data " _
                & "FROM tblStagingIssuerNames_ReverseRepos," _
                & "SET A_tblStagingTablesChecksHEADERS.Header = F1data, " _
                & "SET A_tblStagingTablesChecksHEADERS.Header2 = F2data;"

对于带别名和不带别名的两个语句，我都会得到运行时错误“3075”：

查询表达式“SELECT DISTINCTSELECT F1 FROM tblStagingIssuerNames_ReverseRepos WHERE F1=”颁发者代码中存在语法错误

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您使用的Update语句语法无效。试试这个：

DoCmd.RunSQL "UPDATE A_tblStagingTablesChecksHEADERS " _
            & "SET Header = (SELECT DISTINCT F1 FROM tblStagingIssuerNames_ReverseRepos " _
            & "WHERE F1 = 'ISSUER CODE'), " _
            & "Header2 = (SELECT DISTINCT F51 FROM tblStagingIssuerNames_ReverseRepos " _
            & "WHERE F51 = 'INSTRUMENT REFERENCE (BOE)')";

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@罗诺：谢谢你的回复。我认为别名是强制性的。我试着在脚本的方括号中添加它们，但仍然收到语法错误消息。UPDATE语句中不需要别名。我可以看到，如果任何一个内部select语句返回多条记录，您将如何得到错误消息，但我需要知道您得到的错误消息。@Rono，用于这篇文章的最初SELECT语句确实检索了多条记录，实际上是底层表所持有的记录数，这就是我添加DISTINCT的原因。使用DISTINCT，我得到一条记录。我将在我的帖子中添加对错误的描述。@ProtoVB，我应该更仔细地研究它。我更新了我的答案，以便语法正确。该语句现在运行。。。但是检索0个数据！我不明白。如果我只运行SELECT语句，那么我会为每个字段获取一个值！！怎么了？