如何在一個表中連接兩個表的列？

Question

如何連接table1選擇的列和table2選擇的列以及兩個不同列中的一個表中的結果？在coulmn_A

表1串聯列和表2級聯列在表-B

這裏是我的表：

表1（姓名，年齡，薪水，ID）和表2（地址，城市，ID）

其中表2中的id列是table1的外鍵。

Answer 1

具有相同的數據類型的列。如果我明白您的問題聲明正確，則下面的代碼可能爲你工作 -

INSERT INTO NEWTABLE(coulmn_A,coulmn_B) 
SELECT NAME + CAST(AGE AS VARCHAR(10)) + CAST(SALARY AS VARCHAR(100)) + CAST(T1.ID AS VARCHAR(10)) AS [coulmn_A], 
     CAST(ADDRESS AS VARCHAR(2000)) + CITY + CAST(T2.ID AS VARCHAR(10)) AS [coulmn_B] 
FROM TABLE1 T1 INNER JOIN TABLE2 T2 
ON T1.ID = T2.ID 

假設 - ID列工作作爲您的之間的關係和table2.

同樣將兩個表中的列轉換爲VARCHAR以避免任何數據類型轉換問題（表的真實結構有助於正確的數據類型和大小使用情況）。

Answer 2

請嘗試此代碼。

Insert INTO TargetTable 
(
ColumnA, 
ColumnB 
) 
Select Cast(T1.name AS Nvarchar(max)) + Cast(T1.age AS Nvarchar(max))+Cast(T1.salary AS Nvarchar(max))+ Cast(T1.id AS Nvarchar(max)) AS coulmn_A ,Cast(T2.address AS Nvarchar(max))+Cast(T2.city AS Nvarchar(max))+Cast(T2.id AS Nvarchar(max)) As coulmn_B From Table1 T1 
INNER JOIN Table T2 
ON T1.ID=T2.ID 

假設：ID列用作外鍵表2

注：嘗試投以連接多個列

Answer 3

謝謝您的寶貴職位。我已經使用下面的代碼：

SELECT p.name+','+cast(p.salary as varchar(50))+','+cast(p.age as varchar(50)) as column_A, d.city+', '+cast(d.id as varchar(10)) AS column_B from test2 as p inner join test as d on d.id=p.testid+122