Question

I got a problem in my query, that I think that can be resolved with a subselect.

I have a table called San_Proposta that has a primary key called Proposta_Id. In this table (San_Proposta) I have some columns, but a specific column is called StatusProposta_Id. StatusProposta_Id can only has 2 values: 1 or 2. If SanProposta_Id is 1, then the Proposta_Id don’t exists in a table called San_Negocio that has a foreign key called Proposta_Id. If StatusProposta_Id is 2, then the Proposta_Id exists in my table called San_Negocio.

In San_Negocio I have some columns, but let pay attention in 2 columns in specific: ValidaVenda and ValidaCaptacao. Both columns can only have 2 values: 1 or 0.

I want to do only one query that

• returns all data that don’t exists in San_Negocio, (and how a told early, if San_Proposta.Proposta_Id is 1, then don’t exist in San_Negocio),
• returns all data that exists in San_Proposta but not exists in San_Negocio (and how a told early, if San_Proposta.Proposta_Id is 2, then exists in San_Negocio)
• If the San_Proposta.Proposta_Id exists on my table San_Negocio, (to Proposta_Id exists in my San_Negocio table, the San_Proposta.StatusProposta_Id has the value 2), my column called San_Negocio.ValidaVenda can’t has the same value of San_Negocio.ValidaCaptacao.

How can I do that ?

I tryied the follow query, but don’t work correctly

select 
   San_Proposta.Proposta_Id 
from 
   San_Proposta
left outer join 
     (
         select 
           * 
         from 
           San_Negocio 
         where 
           Proposta_Id is not null 
           and ValidaCaptacao <> ValidaVenda
     ) AS Negocio2
      on San_Proposta.Proposta_Id = Negocio2.Proposta_Id
where 
  San_Proposta.StatusProposta_Id IN (1,2)

@Updated

San_Proposta

Proposta_Id  |  StatusProposta_Id
1               1
2               1
3               1
4               2
5               2
6               2

San_Negocio

Proposta_Id  |  ValidaVenda  | ValidaCaptacao
4               1              0
5               0              1
6               1              1

@Updated

What I Expect

Proposta_Id
1
2
3
4
5

I want that the query returns Proposta_Id 1,2,3 (because don’t exist in San_Negocio) and Proposta_Id 4, 5 because they exist in San_Negocio but ValidaVenda is different then ValidaCaptacao.

Answer 1

select p.* from San_Proposta p 
where p.StatusProposta_Id = 1

union 

select p.* from San_Proposta p 
    left join San_Negocio n on n.Proposta_Id = p.Proposta_Id
where p.StatusProposta_Id = 2
    and n.ValidaCaptacao <> n.ValidaVenda