如何減少查詢執行時間MySql

Question

這是我的Mysql數據庫視圖。

Create View viewschools As Select 
    school.*, 
    conference.conference_name, 
    conference.division_id, 
    division.division_level, 
    facility.facility_address, 
    GROUP_CONCAT(DISTINCT facility.facility_name) AS Athletic_Venue 
FROM school 
    INNER JOIN conference 
    ON school.conference_id = conference.conference_id 
    INNER JOIN division 
    ON conference.division_id = division.division_id 
    LEFT OUTER JOIN schoolfacilitysport 
    ON school.school_id = schoolfacilitysport.school_id 
    LEFT OUTER JOIN facilitytosports 
    ON schoolfacilitysport.facilitytosports_id = facilitytosports.facilitytosports_id 
    LEFT OUTER JOIN facility 
    ON facilitytosports.facility_id = facility.facility_id 
    group by school.school_id 

在數據庫表中20千條記錄現在查詢執行時間是13秒那麼我打開數據庫中的這個視圖。搜索任何學校名稱時，查詢執行時間會增加。請建議任何事情以減少查詢執行時間。

Answer 1

如果您尚未完成，請先在conference_id，division_id，school_id，facilitytosports_id，facility_id上創建索引。
請參閱create index

Answer 2

使用mysql索引。 以下鏈接可能會有所幫助。 http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html