How Optimize this complex sql query? - sql

Question

I have the following SQL Query running in a msaccess database query, that takes several seconds,4 or 5 seconds in a good machines. but in the client machine takes many more...I have to optimize this query.
I try making index in some tables like table Lins and MKT .. And seems to get a little better,
The problem is that I have 8 querys like this running one after the other.. and its gettin really slow with more than 400.000 records
SELECT LINs.LIN,
Sum(VentasDet.Cantidad) AS SumaDeCantidad
FROM ((
(SELECT *
FROM ventas
WHERE (CBTE='COT'
OR CBTE='FCA'
OR CBTE='FCB'
OR CBTE='PR'
OR CBTE='RTO'
OR CBTE='TK')
AND (Suc=0
OR Suc=1
OR Suc=2
OR Suc=4
OR Suc=5)
AND (Caja=0
OR Caja=1
OR Caja=2)
AND (PRDO='12-2017'
OR PRDO='11-2017'
OR PRDO='10-2017'
OR PRDO='09-2017')
AND (MKT=1
OR MKT=2
OR MKT=3
OR MKT=4
OR MKT=5) ) AS Ventas
INNER JOIN
(SELECT *
FROM VentasDet
WHERE LIN<>'0-'
AND LIN<>'1AS'
AND LIN<>'1VF'
AND LIN<>'NEW'
AND LIN<>'OSE'
AND LIN<>'OLJ'
AND LIN<>'OS-O' ) AS VentasDet ON (Ventas.Numero = VentasDet.Numero)
AND (Ventas.Suc = VentasDet.Suc)
AND (Ventas.CBTE = VentasDet.CBTE))
INNER JOIN
(SELECT Codigo,
MaMi
FROM Clis
WHERE MaMi=0
OR MaMi=1
OR MaMi=2 ) AS Clis ON Ventas.Cli = Clis.Codigo)
INNER JOIN LINs ON VentasDet.LIN = LINs.Codigo
GROUP BY VentasDet.LIN,
LINs.LIN
ORDER BY Sum(VentasDet.Cantidad) DESC

Answer 1

Can you try below to see if it make any difference?
1. make a middle table to join CBTE;
2. make a middle table VentasDet;
create table CBTE (CBTE varchar(3));
insert into CBTE values('COT', 'FCA', 'FCB', 'PR','RTO', 'TK');
create table LIN (LIN varchar(4));
insert into LIN values('0-','1AS','1VF','NEW','OSE','OLJ','OS-O');
( SELECT *
FROM VentasDet V
left join LIN L on v.Lin=L.Lin where L.Lin is null) AS VentasDet