Help to optimize a Query - sql

Question

i need optimize this query, please see the comented line:
SELECT p.NUM_PROCESSO,
p.NUM_PROC_JUD,
p.Num_Proc_Jud_Antigo1,
p.Num_Proc_Jud_Antigo2,
p.Num_Proc_Jud_Novo,
a.assunto,
su.subassunto,
u.UNIDADE,
s.SERVIDOR,
dvj.data_vinc,
p.TIPO,
c.DESC_CLASSIF
FROM processo p
LEFT OUTER JOIN assunto a
ON a.cod_assunto = p.cod_assunto
LEFT OUTER JOIN subassunto su
ON su.cod_subassunto = p.cod_subassunto
LEFT OUTER JOIN Distrib_VincJud dvj
ON dvj.num_processo = p.num_processo
LEFT OUTER JOIN servidor s
ON S.COD_SERVIDOR = dvj.COD_SERVIDOR
LEFT OUTER JOIN unidade u
ON u.COD_UNIDADE = s.COD_UNIDADE
LEFT OUTER JOIN Classif_Processo c
ON C.COD_CLASSIF = p.COD_CLASSIF
WHERE p.TIPO = 'J'
AND p.NUM_PROCESSO NOT IN (SELECT d.num_processo
FROM distribuicao d
WHERE d.COD_SERVIDOR in ( '0', '000' )
AND d.num_distribuicao IN
(SELECT MAX(num_distribuicao)
FROM Distribuicao
GROUP BY num_processo)
--this suquery return 100k lines !!! and consume all CPU:
AND dvj.id_vinc IN
(SELECT MAX(id_vinc)
FROM Distrib_VincJud
where ativo = '1'
GROUP BY num_processo))
AND p.NUM_PROCESSO NOT IN (SELECT num_processo
FROM Anexos)
AND s.ATIVO = 1
my horrible solution at this moment: http://pastebin.com/C4PHNsSc

Answer 1

What I would do is convert the IN and NOT IN into joins:
SELECT p.NUM_PROCESSO, p.NUM_PROC_JUD, p.Num_Proc_Jud_Antigo1,
p.Num_Proc_Jud_Antigo2, p.Num_Proc_Jud_Novo, a.assunto,
su.subassunto, u.UNIDADE, s.SERVIDOR, dvj.data_vinc, p.TIPO,
c.DESC_CLASSIF
FROM
processo p
INNER JOIN (
SELECT p.num_processo,
CASE WHEN dvj.id_vinc IS NOT NULL
AND d.num_distribuicao IS NOT NULL
OR a.num_processo IS NOT NULL THEN
1
ELSE
0
END exclude
FROM
processo p
LEFT JOIN Anexos a
ON p.num_processo = a.num_processo
LEFT JOIN (
SELECT num_processo,
MAX(num_distribuicao) AS max_distribuicao
FROM Distribuicao
GROUP BY num_processo
) md ON p.num_processo = md.num_processo
LEFT JOIN (
SELECT num_processo, MAX(id_vinc) AS max_vinc
FROM Distrib_VincJud
WHERE ativo = '1'
GROUP BY num_processo
) mv on p.num_processo = mv.num_processo
LEFT JOIN distribuicao d
ON p.num_processo = d.num_processo
AND md.max_distribuicao = d.num_distribuicao
LEFT JOIN Distrib_VincJud dvj
ON p.num_processo = dvj.num_processo
AND mv.max_vinc = dvj.id_vinc
WHERE d.COD_SERVIDOR in ('0', '000')
) IncExc
ON p.num_processo = IncExc.num_processo
LEFT OUTER JOIN assunto a
ON a.cod_assunto = p.cod_assunto
LEFT OUTER JOIN subassunto su
ON su.cod_subassunto = p.cod_subassunto
LEFT OUTER JOIN Distrib_VincJud dvj
ON dvj.num_processo = p.num_processo
LEFT OUTER JOIN servidor s
ON S.COD_SERVIDOR = dvj.COD_SERVIDOR
LEFT OUTER JOIN unidade u
ON u.COD_UNIDADE = s.COD_UNIDADE
LEFT OUTER JOIN Classif_Processo c
ON C.COD_CLASSIF = p.COD_CLASSIF
WHERE
p.TIPO = 'J'
AND IncExc.exclude = 0
AND s.ATIVO = 1

Answer 2

This part
AND p.NUM_PROCESSO NOT IN (
SELECT d.num_processo FROM distribuicao d
WHERE d.COD_SERVIDOR in ('0','000')
AND d.num_distribuicao IN (
SELECT MAX(num_distribuicao) FROM Distribuicao GROUP BY num_processo
)
and this part
AND p.NUM_PROCESSO NOT IN (
SELECT num_processo FROM Anexos
)
are going to be your biggest bottlenecks in the query as you've got nested subqueries in there.
You also have a few of these:
SELECT MAX(id_vinc) FROM Distrib_VincJud where ativo = '1' GROUP BY num_processo)
SELECT MAX(num_distribuicao) FROM Distribuicao GROUP BY num_processo
You might gain a few more seconds by letting these be seperate queries where you can store the results.
In fact, you might do well to have a separate table with these NOT IN(...) values that gets updated upon every insert to your database. It all depends on how often you run each query.
Have you tried running your Query Optimizer on these?

Answer 3

Separate out the sub queries and then do a join
i.e. find all the num_processo that you are excluding in one query first. do a left join with the processo table on the num_processo field and exclude those where the first table's num_processo field is null
Edit:
what's the relationship between the tables distribuicao and distrib_vincJud?
this line is killing your performance...
AND dvj.id_vinc IN
( SELECT MAX(id_vinc)
FROM Distrib_VincJud
where ativo = '1'
GROUP BY num_processo
)
sub query in a sub query which then references a joined table outside of the sub query??????