改善查询

| 反正我可以改善此查询吗？

SELECT DISTINCT adb_product_type.strproduct_type AS strproduct_type, adb_product_cat.strproduct_cat AS strproduct_cat, adb_product.strproduct AS strproduct, 

CASE @campaignCount:= 
(SELECT COUNT(DISTINCT adb_campaign_1.campaign_id) 
FROM adb_camp_media AS adb_camp_media_1 
LEFT JOIN adb_campaign AS adb_campaign_1 ON adb_campaign_1.campaign_id = adb_camp_media_1.campaign_id
LEFT JOIN adb_camp_media_prod AS adb_camp_media_prod_1 ON adb_camp_media_prod_1.media_num = adb_camp_media_1.media_num 
WHERE 
(adb_camp_media_1.inttotal_per_store = 1 AND adb_camp_media_1.lngproduct = adb_product.lngproduct OR adb_camp_media_1.inttotal_per_store > 1 AND adb_camp_media_prod_1.lngproduct = adb_product.lngproduct)
AND (
(
adb_campaign_1.start_date
BETWEEN \'2011-01-01\'
AND \'2011-01-31\'
)
OR (
adb_campaign_1.end_date
BETWEEN \'2011-01-01\'
AND \'2011-01-31\'
)
OR (
adb_campaign_1.start_date < \'2011-01-01\'
AND adb_campaign_1.end_date > \'2011-01-31\'
)
) 
) 
WHEN 0 THEN \'No\' ELSE \'Yes\' END AS \'YesNo\', 

CASE @campaignCount WHEN 0 THEN \'\' ELSE @campaignCount END AS \'CampaignCount\', 
CASE @campaignCount WHEN 0 THEN \'\' ELSE 

(SELECT GROUP_CONCAT(DISTINCT adb_media_1.name ORDER BY adb_media_1.name SEPARATOR \', \' ) 
FROM adb_camp_media AS adb_camp_media_1 
LEFT JOIN adb_campaign AS adb_campaign_1 ON adb_campaign_1.campaign_id = adb_camp_media_1.campaign_id 
LEFT JOIN adb_camp_media_prod AS adb_camp_media_prod_1 ON adb_camp_media_prod_1.media_num = adb_camp_media_1.media_num 
LEFT JOIN adb_media AS adb_media_1 ON adb_media_1.media_id = adb_camp_media_1.media_id
WHERE 
(adb_camp_media_1.inttotal_per_store = 1 AND adb_camp_media_1.lngproduct = adb_product.lngproduct OR adb_camp_media_1.inttotal_per_store > 1 AND adb_camp_media_prod_1.lngproduct = adb_product.lngproduct)
AND (
(
adb_campaign_1.start_date
BETWEEN \'2011-01-01\'
AND \'2011-01-31\'
)
OR (
adb_campaign_1.end_date
BETWEEN \'2011-01-01\'
AND \'2011-01-31\'
)
OR (
adb_campaign_1.start_date < \'2011-01-01\'
AND adb_campaign_1.end_date > \'2011-01-31\'
)
) 
) 

END AS mediaName , adb_product.lngproduct

FROM adb_product_type 
LEFT JOIN adb_product_cat ON adb_product_cat.lngproduct_type = adb_product_type.lngproduct_type 
LEFT JOIN adb_product ON adb_product.lngproduct_cat = adb_product_cat.lngproduct_cat 
LEFT JOIN adb_camp_media ON adb_camp_media.lngproduct = adb_product.lngproduct 
LEFT JOIN adb_media ON adb_media.media_id = adb_camp_media.media_id 
LEFT JOIN adb_camp_media_prod ON adb_camp_media_prod.media_num = adb_camp_media.media_num 
LEFT JOIN adb_campaign ON adb_campaign.campaign_id = adb_camp_media.campaign_id 
WHERE 1=1 


ORDER BY YesNo DESC , strproduct_type, strproduct_cat, strproduct 

表结构     -表

adb_camp_media

的表结构 创建表adb_camp_media（   media_num int（11）NOT NULL auto_increment，   campaign_id int（11）NOT NULL默认\'0 \'，   media_id int（11）NOT NULL默认\'0 \'，   inttotal_per_store int（4）NOT NULL默认\'0 \'，   units_per_item int（2）默认为NULL，   lngproduct int（11）NOT NULL默认\'0 \'   rental_cost double（10,2）默认为NULL，   checkers_rental双重默认NULL，   hyper_rental double default NULL，   usave_rental双重默认NULL，   ls_rental double（10,2）默认\'0.00 \'，   spar_rental double（10,2）默认\'0.00 \'，   背板tinyint（1）NOT NULL，   主键（media_num），   KEY campaign_id（campaign_id，media_id，lngproduct），   密钥lngproduct（lngproduct） ）ENGINE = MyISAM DEFAULT CHARSET = latin1; - -表

adb_camp_media_prod

的表结构 创建表adb_camp_media_prod（   media_prod_id int（11）NOT NULL auto_increment，   media_num int（4）NOT NULL，   lngproduct int（4）NOT NULL，   主键（media_prod_id），   密钥media_num（media_num，lngproduct），   密钥lngproduct（lngproduct） ）ENGINE = MyISAM DEFAULT CHARSET = latin1; - -表

adb_campaign

的表结构 创建表adb_campaign（   campaign_id int（11）NOT NULL auto_increment，   client_id int（11）NOT NULL默认\'0 \'，   campaign_name varchar（50）NOT NULL默认\'\'，   说明文字，   position_desc文字，   start_date date NOT NULL默认值\'0000-00-00 \'，   end_date date NOT NULL默认值\'0000-00-00 \'，   批准的tinyint（1）NOT NULL默认\'0 \'，   created_date date NOT NULL默认值\'0000-00-00 \'，   Updated_date datetime默认为NULL，   user_id int（11）NOT NULL默认\'0 \'，   pinno varchar（50）NOT NULL默认\'\'，   jobno varchar（30）NOT NULL默认\'\'，   quoteno varchar（30）NOT NULL默认\'\'，   sales_ae_id int（11）默认为NULL，   Artwork_specno varchar（30）NOT NULL默认\'\'，   Artwork_jobno varchar（30）NOT NULL默认\'\'，   代理商tinyint（1）NOT NULL默认为\'0 \'，   brand_name varchar（50）NOT NULL默认\'\'，   paypercycle tinyint（1）NOT NULL默认\'0 \'，   agency_comm双重默认NULL，   变体varchar（100）默认NULL，   pack_size varchar（100）默认为NULL，   折扣double默认NULL，   discount_val double缺省为NULL，   sales_comm double NOT NULL默认为\'0 \'，   取消了tinyint（1）默认\'0 \'，   保留tinyint（1）默认\'0 \'，   campaign_status_id int（4）默认为NULL，   主键（campaign_id），   唯一键jobno（jobno），   KEY开始日期（开始日期），   KEY结束日期（结束日期），   KEY campaign_name（campaign_name），   KEY user_id（用户ID，已取消，保留） ）ENGINE = MyISAM DEFAULT CHARSET = latin1; - -表

adb_product

的表结构 创建表adb_product（   lngproduct int（11）NOT NULL auto_increment，   strproduct varchar（100）NOT NULL默认\'\'，   lngproduct_cat int（11）NOT NULL默认\'0 \'   主键（lngproduct），   密钥lngproduct_cat（lngproduct_cat） ）ENGINE = MyISAM DEFAULT CHARSET = latin1; - -表

adb_product_cat

的表结构 创建表adb_product_cat（   lngproduct_cat int（11）NOT NULL auto_increment，   strproduct_cat varchar（100）NOT NULL默认\'\'，   lngproduct_type int（11）NOT NULL默认\'0 \'，   主键（lngproduct_cat），   密钥lngproduct_type（lngproduct_type） ）ENGINE = MyISAM DEFAULT CHARSET = latin1; - -表

adb_product_type

的表结构 创建表adb_product_type（   lngproduct_type int（11）NOT NULL auto_increment，   strproduct_type varchar（100）NOT NULL默认\'\'，   主键（lngproduct_type） ）ENGINE = MyISAM DEFAULT CHARSET = latin1;