标签:mysql coldfusion query-timeout
我有15个查询,可以动态生成页面上的表数据以用于报告.每个查询需要250到900毫秒,这意味着页面加载时间为4到13秒,具体取决于服务器负载.加载时间导致一些用户认为页面根本不会加载.
我想知道是否有某种方法可以简化查询以提供更可接受的加载时间.以下是其中一个查询:
<cfquery datasource="MeetingDB" name="One">
SELECT COUNT( meetingID ) AS countatron
FROM case_meeting
WHERE meetingID
IN (
SELECT DISTINCT a.meetingID
FROM case_meeting a
INNER JOIN meeting b ON a.meetingID = b.meetingID
WHERE b.categoryID = '1'
AND SUBSTRING( meetingCode, 5, 2 )
BETWEEN 12
AND 22
AND SUBSTRING( meetingCode, 7, 2 )
BETWEEN 01
AND 12
AND SUBSTRING( meetingCode, 9, 2 )
BETWEEN 01
AND 31
)
AND caseID
IN (
'1', '2', '3', '28', '29', '30', '39', '40', '45'
)
GROUP BY meetingID
HAVING COUNT( caseID ) > 0 AND COUNT( caseID ) < 2
</cfquery>
<td><cfoutput> #One.recordcount# </cfoutput></td>
解决方法:
试试这个查询
SELECT COUNT( a.meetingID ) AS countatron
FROM case_meeting a, case_meeting b
WHERE a.meetingID = b.meetingID
AND b.categoryID = '1'
AND SUBSTRING( b.meetingCode, 5, 2 )
BETWEEN 12
AND 22
AND SUBSTRING( b.meetingCode, 7, 2 )
BETWEEN 01
AND 12
AND SUBSTRING( b.meetingCode, 9, 2 )
BETWEEN 01
AND 31
AND b.caseID
IN (
'1', '2', '3', '28', '29', '30', '39', '40', '45'
)
GROUP BY a.meetingID
HAVING COUNT( a.caseID ) = 1
标签:mysql,coldfusion,query-timeout 来源: https://codeday.me/bug/20190725/1535492.html
本站声明: 1. iCode9 技术分享网(下文简称本站)提供的所有内容,仅供技术学习、探讨和分享; 2. 关于本站的所有留言、评论、转载及引用,纯属内容发起人的个人观点,与本站观点和立场无关; 3. 关于本站的所有言论和文字,纯属内容发起人的个人观点,与本站观点和立场无关; 4. 本站文章均是网友提供,不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属;如您发现该文章侵犯了您的权益,可联系我们第一时间进行删除; 5. 本站为非盈利性的个人网站,所有内容不会用来进行牟利,也不会利用任何形式的广告来间接获益,纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。