Re: How to optimize this query? Peter Brawley January 17, 2014 09:42PM Re: How to optimize this query? Periyasamy Balasubramanian January 18, 2014 03:36AM Re: How to optimize this query? Rick James January 18, 2014 04:33PM Re: How to optimize this query? Periyasamy Balasubramani...
Note:Although query cache is deprecated as of MySQL 5.7.20, and removed in MySQL 8.0, it is still a powerful tool if you’re using supported versions of MySQL. However, if you are using newer versions of MySQL, you may adopt alternative third-party tools likeProxySQLto optimize performance...
/ Database Support / How to optimize a MySQL database? It is always a good idea to keep your databases’ tables optimized. To perform the optimization, log in to yourSite Tools>MySQL>phpMyAdminand select the database whose tables you wish to optimize. ...
8.2.1.2 How MySQL Optimizes WHERE Clauses MySQL 优化WHERE 子句 本节讨论优化用于处理WHERE子句, 例子是使用SELECT 语句,但是相同的优化应用于WHERE子句在DELETE和UPDATE子句 注意: 因为MYSQL优化是不间断的,不是所有的MYSQL 优化都记录在这里 你可能尝试重写你的查询让运算操作更快,同时牺牲可读。
which has a better explaination for indexes PS: Updated to remove erroneous which are left below for reference: b) In the query I can see that youare restricting by a date and time yet event_create_date is a date field, you can improve the comparison by using TO_DAYS(event_create...
use putty to telnet the server. Just run the pl. ./mysqltuner.pl The pl will display some setting suggestion. change ./etc/mysql/my.cnf Use the following command to optimize database tablesmysqlcheck --optimize -A -u username -ppassword service mysql restart That's all.Authored...
This should be the next step to improve mysql performance. Find out the sql queries that are slow or repeating. This is done as follows: a. UseDevelmodule. This would list the sql queries that are being executed when a page loads. Monitor the unusal slow sql query or queries repeating....
Hi can someone help me to optimize this MySQL query, it's taking very long to complete, I have set indexes correctly, but it seems that string operations are slowing this query SELECT vendor_products.*, (SELECT Count(*) FROM products WHERE gtin = vendor_products.gtin OR gtin = Concat(0...
MySQL Internals-How MySQL optimize single range Louis Hust 0 Perface When MySQL calculates the cost of QEP(Query execute plan), it will do a quick test for range scan with const values. But when the condition in where is complex, it should do the right thing for optimization, otherwise th...
Re: How to optimize MySQL settings? Zach Ellis September 15, 2023 04:43PM Re: How to optimize MySQL settings? Zach Ellis September 15, 2023 05:38PM Sorry, you can't reply to this topic. It has been closed.Content reproduced on this site is the property of the respective copyright ho...