sql select into subquery

Question

我正在做一个系统之间的数据转换，并准备了一个select语句，标识从table1提取的必要行并将其加入table2以显示一对支持列。此选择语句还会将空白列放入结果中，以便将上载结果格式化为目标系统。

除了这个查询之外，我还需要更新一些列值，我希望在新表中的单独语句操作中进行更新。因此，我有兴趣在SELECT INTO内将上述select语句作为子查询运行，这将基本上将结果放到暂存表中。

SELECT 
    dbo_tblPatCountryApplication.AppId, '', 
    dbo_tblPatCountryApplication.InvId, 
    'Add', dbo_tblpatinvention.disclosurestatus, ... 
FROM 
    dbo_tblPatInvention 
INNER JOIN 
    dbo_tblPatCountryApplication ON dbo_tblPatInvention.InvId = dbo_tblPatCountryApplication.InvId 
ORDER BY 
    dbo_tblpatcountryapplication.invid; 

我想执行上述语句，以便将结果转储到新表中。任何人都可以请告知如何将语句嵌入子查询中，该子查询将很好地与SELECT INTO匹配？

Answer 1

尝试

INSERT INTO stagingtable (AppId, ...) 
SELECT ... --your select goes here 

Answer 2

如果临时表不存在，并且要在插入时创建它，然后尝试以下方法：

SELECT dbo_tblPatCountryApplication.AppId,'', dbo_tblPatCountryApplication.InvId, 
     'Add', dbo_tblpatinvention.disclosurestatus ....... 
INTO StagingTable 
FROM dbo_tblPatInvention 
INNER JOIN dbo_tblPatCountryApplication 
       ON dbo_tblPatInvention.InvId = dbo_tblPatCountryApplication.InvId; 

如果你想插入它们按照特定的顺序然后使用from子句中的子查询尝试使用：

SELECT * 
INTO StagingTable 
FROM 
(
    SELECT dbo_tblPatCountryApplication.AppId, '', dbo_tblPatCountryApplication.InvId, 
      'Add', dbo_tblpatinvention.disclosurestatus ....... 
    FROM dbo_tblPatInvention 
    INNER JOIN dbo_tblPatCountryApplication ON 
       dbo_tblPatInvention.InvId = dbo_tblPatCountryApplication.InvId 
    order by dbo_tblpatcountryapplication.invid 
) a; 

Answer 3

您可以简单地添加一个INTO cl澳洲英语到现有的查询来创建充满了查询结果的新表：

SELECT ... 
INTO MyNewStagingTable -- Creates a new table with the results of this query 
FROM MyOtherTable 
    JOIN ... 

但是，你必须确保每列都有一个名称，如：

SELECT dbo_tblPatCountryApplication.AppId, -- Cool, already has a name 
    '' AS Column2, -- Given a name to create that new table with select...into 
    ... 
INTO MyNewStagingTable 
FROM dbo_tblPatInvention INNER JOIN ... 

而且，您也可以使用aliases for your tables来使代码更具可读性;最后

SELECT a.AppId, 
    '' AS Column2, 
    ... 
INTO MyNewStagingTable 
FROM dbo_tblPatInvention AS i 
    INNER JOIN dbo_tblPatCountryApplication AS a ON i.InvId = a.InvId 
ORDER BY a.InvId 

注意的一点是，它看起来奇怪，命名你的表dbo_tblXXX为DBO通常模式名，并从表名以点符号，例如分离dbo.tblXXX。我假设在添加into子句之前，您已经有了一个完整的select查询。有些人还考虑在数据库中使用匈牙利符号（tblName）作为一种反模式来避免。