Question

I’m trying to insert records from other tables into store_orders_items.
For example:

INSERT INTO store_orders_items( order_id, sel_item_id, sel_item_price)
  SELECT order_id, sel_item_id, sel_item_price
      FROM orders_ids 
      INNER JOIN store_orders ON store_orders.id = orders_ids.order_id
      INNER JOIN store_shoppertrack ON  store_items.id=store_shoppertrack.sel_item_id
      Where session_id = '".$_COOKIE["PHPSESSID"]."';

Then I received the following message: Unknown column ‘sel_item_price’ in ‘field list’. I tried to set sel_item_price As item_price to no avail.
Here are my tables:

store_orders_items:

id| order_id | sel_item_id |sel_item_price|  
-------------------------------------------        
  |          |             |              |

store_shoppertrack:

id| session_id | sel_item_id |date_added|  
-------------------------------------------        
  |            |             |          |

store_orders:

id| item_total| order_date| 
---------------------------       
  |            |          |

store_items:

id| item_price| item_color|  
---------------------------       
  |           |           |  

orders_ids:

id| order_id | status|  
----------------------       
  |          |       |   

Answer 1

There is no table in jour join which has either a column named sel_item_price, nor a column item_price. The INSERT INTO has nothing to do with this, the SELECT on its own will fail just as well. I assume that you wanted to join with the store_items table as well, and select the item_price column from that table for insertion into the sel_item_price table of store_order_items. You could rewrite your SELECT like this:

SELECT order_id, store_shoppertrack.sel_item_id, store_items.item_price AS sel_item_price
  FROM orders_ids 
  INNER JOIN store_orders ON store_orders.id = orders_ids.order_id
  INNER JOIN store_items ON store_items.id = store_orders.sel_item_id
  INNER JOIN store_shoppertrack ON  store_items.id=store_shoppertrack.sel_item_id
  Where session_id = 'foo';

The AS sel_item_price is optional, since you already specified the destination column in the INSERT INTO part. But it might help consistency, as the output of the SELECT will now hace volumns labeled the same as those of the target table. And it exhibits that you got the order of the AS wrong in your question, so you might learn something here.

I’ve created a SQL Fiddle for your schema and query.