將數據插入表與另一個選擇查詢結果

Question

我尋求以下問題的幫助： 我有兩個表 Table_1列itemid，locationid，quantity

Table_2列itemid，location1，location2，location3

我想從Table_1（僅quantity列）複製數據到Table_2（到location1列）。 itemid在兩個表中都是相同的（Table_1有重複的項目ID），所以這就是我想要複製到新表並將每個位置的所有數量保留爲一列的原因。我使用下面的查詢，但它不工作

INSERT INTO 
Table_2(location1) 
(
SELECT qty 
FROM Table_1 
WHERE locationid = 1 AND Table_1.locationid = Table_2.locationid 
) 

Answer 1

如果table_2是空的，那麼請嘗試以下插入語句：

insert into table_2 (itemid,location1) 
select itemid,quantity from table_1 where locationid=1 

如果table_2已經包含itemid值，然後再嘗試此更新聲明：

update table_2 set location1= 
(select quantity from table_1 where locationid=1 and table_1.itemid = table_2.itemid) 

Answer 2

INSERT INTO `test`.`product` (`p1`, `p2`, `p3`) 
SELECT sum(p1), sum(p2), sum(p3) 
FROM `test`.`product`; 

Answer 3

下面是一個這樣一個查詢的例子：

INSERT INTO [93275].[93276].[93277].[93278] ([Mobile Number], [Mobile Series], [Full Name], [Full Address], [Active Date], company) IN 'I:\For Test\90-Mobile Series.accdb 
SELECT [1].[Mobile Number], [1].[Mobile Series], [1].[Full Name], [1].[Full Address], [1].[Active Date], [1].[Company Name] 
FROM 1 
WHERE ((([1].[Mobile Series])="93275" Or ([1].[Mobile Series])="93276")) OR ((([1].[Mobile Series])="93277"));OR ((([1].[Mobile Series])="93278"));