其它的不多说了,用了一些很平常的技巧
原SQL:
SELECT *
FROM (SELECT ROWNUM num, connector_id, conn.sidea_port_id,
conn.sideb_port_id, conn.rsc_spec_id AS line_rsc_spec_id,
pg_trp_function.fun_getcodebyportandspec
(1,
conn.sidea_port_id,
conn.sidea_port_spec_id
) AS up_dev_code,
pg_trp_function.fun_getcodebyportandspec
(2,
conn.sidea_port_id,
conn.sidea_port_spec_id
) AS up_port_code,
cab.code AS cable_code, conn.code AS line_code,
pg_trp_function.fun_getcodebyportandspec
(1,
conn.sideb_port_id,
conn.sideb_port_spec_id
) AS down_dev_code,
pg_trp_function.fun_getcodebyportandspec
(2,
conn.sideb_port_id,
conn.sideb_port_spec_id
) AS down_port_code,
pg_trp_function.fun_getdevidbyportandspec
(conn.sidea_port_id,
conn.sidea_port_spec_id
) AS up_device_id,
pg_trp_function.fun_getdevidbyportandspec
(conn.sideb_port_id,
conn.sideb_port_spec_id
) AS down_device_id,
pg_trp_function.fun_getdevspecidbyportandspec
(conn.sidea_port_id,
conn.sidea_port_spec_id
) AS up_dev_rsc_spec_id,
pg_trp_function.fun_getdevspecidbyportandspec
(conn.sideb_port_id,
conn.sideb_port_spec_id
) AS down_dev_rsc_spec_id,
(SELECT dvl.NAME
FROM device_item di,
discrete_value_list dvl
WHERE di.item_spec_id = 200006
AND di.device_id = conn.device_id
AND di.item_spec_id = dvl.item_spec_id
AND di.VALUE = dvl.meta_key_value
AND ROWNUM <= 1) AS cab_spec_name,
pg_trp_function.fun_getdictname
(conn.line_ability)
AS line_ability_name,
pg_trp_function.fun_getdevnamebyportandspec
(conn.sidea_port_id,
conn.sidea_port_spec_id
) AS up_dev_rsc_spec_name,
pg_trp_function.fun_getdevnamebyportandspec
(conn.sideb_port_id,
conn.sideb_port_spec_id
) AS down_dev_rsc_spec_name,
pg_trp_function.fun_getmdfrackcdbyportandspec
(conn.sidea_port_id,
conn.sidea_port_spec_id,
conn.sideb_port_id,
conn.sideb_port_spec_id
) AS mdf_rack_code
FROM connector conn,
device cab,
user_side_port usp,
(SELECT s.side_id
FROM side s, device dev, node nd
WHERE dev.device_id = nd.device_id
AND dev.rsc_spec_id IN (10301001, 10301002, 10301003)
AND dev.code = :1
AND dev.area_id = :2
AND s.node_id_a = nd.node_id) sa
WHERE conn.device_id = cab.device_id
AND conn.sidea_port_id = usp.port_id
AND conn.side_id = sa.side_id
AND conn.sidea_port_id IS NOT NULL
AND conn.sideb_port_id IS NOT NULL
AND usp.code >= :3
AND usp.code <= :4)
WHERE num BETWEEN :5 AND :6
优化后的SQL:
SELECT v.connector_id,
v.sidea_port_id,
v.sideb_port_id,
v.rsc_spec_id AS line_rsc_spec_id,
v.rsc_status_cd AS line_status,
pg_trp_function.fun_getrscstatusname(v.rsc_status_cd) AS line_status_name,
pg_trp_function.fun_getcodebyportandspec(1,v.sidea_port_id,v.sidea_port_spec_id) AS up_dev_code,
pg_trp_function.fun_getcodebyportandspec(2,v.sidea_port_id,v.sidea_port_spec_id) AS up_port_code,
(select d.code from device d where d.device_id = v.device_id) AS cable_code,
v.code AS line_code,
pg_trp_function.fun_getcodebyportandspec(1,v.sideb_port_id,v.sideb_port_spec_id) AS down_dev_code,
pg_trp_function.fun_getcodebyportandspec(2,v.sideb_port_id,v.sideb_port_spec_id) AS down_port_code,
pg_trp_function.fun_getdevidbyportandspec(v.sidea_port_id,v.sidea_port_spec_id) AS up_device_id,
pg_trp_function.fun_getdevidbyportandspec(v.sideb_port_id,v.sideb_port_spec_id) AS down_device_id,
pg_trp_function.fun_getdevspecidbyportandspec(v.sidea_port_id,v.sidea_port_spec_id) AS up_dev_rsc_spec_id,
pg_trp_function.fun_getdevspecidbyportandspec(v.sideb_port_id,v.sideb_port_spec_id) AS down_dev_rsc_spec_id,
(SELECT dvl.NAME
FROM device_item di,
discrete_value_list dvl
WHERE di.item_spec_id = 200006
AND di.device_id = v.device_id
AND di.item_spec_id = dvl.item_spec_id
AND di.VALUE = dvl.meta_key_value
AND ROWNUM <= 1) AS cab_spec_name,
pg_trp_function.fun_getdictname(v.line_ability) AS line_ability_name,
pg_trp_function.fun_getdevnamebyportandspec(v.sidea_port_id,v.sidea_port_spec_id) AS up_dev_rsc_spec_name,
pg_trp_function.fun_getdevnamebyportandspec(v.sideb_port_id,v.sideb_port_spec_id) AS down_dev_rsc_spec_name,
pg_trp_function.fun_getmdfrackcdbyportandspec(v.sidea_port_id,v.sidea_port_spec_id,v.sideb_port_id,v.sideb_port_spec_id) AS mdf_rack_code
from (
SELECT /*+no_merge(sa) ORDERED use_nl(sa, conn, cab, usp) INDEX_JOIN(O)*/
ROWNUM num, conn.connector_id, conn.code, conn.rsc_status_cd, conn.rsc_spec_id, conn.line_ability,
conn.sidea_port_id, conn.sidea_port_spec_id,
conn.sideb_port_id, conn.sideb_port_spec_id,
sa.device_id
FROM (select /*+ORDERED*/ s.side_id, sd.device_id
from device dev
inner join node nd on nd.device_id = dev.device_id
inner join side s on s.node_id_a = nd.node_id
inner join side_device sd on sd.side_id = s.side_id
inner join device_item di on di.device_id = sd.device_id and di.item_spec_id = 200006 and di.value = 4
where dev.code = 'MDF-0315'
and dev.rsc_spec_id in (10301001, 10301002, 10301003)
and dev.area_id = 127
) sa,
connector conn,
user_side_port usp
WHERE conn.side_id = sa.side_id
AND conn.device_id = sa.device_id
AND conn.sidea_port_id = usp.port_id
AND conn.sidea_port_id IS NOT NULL
AND conn.sideb_port_id IS NOT NULL
AND usp.code >= '001-01-00001'
AND usp.code <= '079-01-00001'
AND ROWNUM <= 100) v
where num >= 1
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