UPDATE查询多字段，多条件

Question

这是一篇与 MS Access 相关的帖子。

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;"

我已经尝试了以下（不成功）：

    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;"

对于这两个语句（有和没有别名），我得到运行时错误'3075'：

查询表达式 '(SELECT DISTINCT(SELECT F1 FROM tblStagingIssuerNames_ReverseRepos WHERE F1 = 'ISSUER CODE'))' 中的语法错误。

Answer 1

您正在使用无效的更新语句语法。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)')";