Analysis of connected table

I have 2 tables connected together
Table 1 include all store deals codes
Table 2 include all orders generated

2 tables is connected together through column Deal_Code_id
in my analysis phase i can only see deal codes that have orders generated in table 2. but i can’t see all deals created in Table 1 if there is no orders in Table 2… How can i display all Deal codes even there is no orders to these deals

There are different join types available within QuickSight data preparation. The Join Types section towards the bottom of this link will give you more information on join types to achieve your desired outcome.