PHP / Mysql在现有表中插入多行以输出csv

Question

I am creating a table in a specific format from my existing mysql database so I can export it as a csv file to my woocommerce website.

I have no problem creating a row for each product (simple product with no variation), however I am having problems with variable products (requiring several rows each).

The picture below shows an example of 3 products (3 different ParentSKU) in the table

What I need to do is to create a new row for each ParentSKU with the common information of each variation. ie 1 extra row for 14615, 1 extra row for 14622 and 1 extra row for 14624.

I have about 1000 rows that need to be inserted like this.

Below is how I insert my rows in the table in the first place:

$Query2 = "INSERT INTO Website ( `ParentSKU`,`SKU`,`Brand`,`ProductName`,`Images`)

SELECT  ID,ID,Brand,Style,MainLink

FROM    StockAccount,Stock_Items

WHERE   StockAccount.ID=Stock_Items.ID_Product AND
    Stock_Items.Name='' AND
    Stock_Items.Returned='' AND
    StockAccount.LAXS='Yes' AND
    StockAccount.MainLink!=''

GROUP BY Size,MainLink

ORDER BY `ID`
";

I know how to insert rows one at a time but could not find anything about my particular issue.

Answer 1

Use SELECT DISTINCT to get a single row for each ParentSKU , using the ParentSKU also as the SKU in the new row.

INSERT INTO WebSite (ParentSKU, SKU, Brand, ProductName, Images)
SELECT DISTINCT ParentSKU, ParentSKU, Brand, ProductName, Images
FROM WebSite