SaaS- Tenant Specific Lookup Data in Shared Database

Question

I am developing multitenant SaaS based application and going with Shared Database for storing all the tenant records with help of TenantId column.

Now the problem is i h

Answer 1

This is the design I would then use.

Games

Id
GameName
IsTenantSpecific
SomeGameSpecificColumn

TenantGames

GameId
TenantId
SomeTenantSpecificColumn
AnotherTenantSpecificColumn

Then you can query that table in a Join with:

...
FROM
    Games
    INNER JOIN UserGames ON
        UserGames.GameId = Games.Id
    LEFT JOIN TenantGames ON
        TenantGames.GameId = Games.Id
WHERE
    TenantGames.TenantId = @tenantId OR
    (
        TenantGames.TenantId IS NULL AND
        IsTenantSpecific = 0
    )

Game specific fields can be put in the Games table. Tenant specific fields can be added to the TenantGames table, and those fields will be NULL if it is not a tenant specific customization.