Question

In MS SQL Server I have two tables [Products] and [Product_img] with relationship (ONE TO MANY).

SELECT p_id, name FROM dbo.products

| 15 | | name1 |

| 17 | | name2 |

SELECT p_id, path FROM dbo.product_img

| 1.jpg | | 15 |

| 2.jpg | | 15 |

| 3.jpg| | 17 |

| 4.jpg | | 17 |

SELECT dbo.product_img.p_id, dbo.products.name, dbo.product_img.path FROM dbo.product_img INNER JOIN dbo.products ON dbo.product_img.p_id = dbo.products.p_id

| 15 | | name1 | | 1.jpg |

| 15 | | name1 | | 2.jpg |

| 17 | | name2 | | 3.jpg |

| 17 | | name2 | | 4.jpg |

What is the SQL statement that can show the tables like this (with out repeating)?

| 15 | | name1 | | 1.jpg | | 2.jpg |

| 17 | | name2 | | 3.jpg | | 4.jpg |

Answer 1

USE MAX AND MIN

SELECT
  dbo.product_img.p_id
, dbo.products.name
, MAX(dbo.product_img.path)
, MIN(dbo.product_img.path) 
FROM dbo.product_img 
INNER JOIN dbo.products 
    ON dbo.product_img.p_id = dbo.products.p_id
 GROUP BY dbo.product_img.p_id , dbo.products.name