mysql offset performance

The optimization of MySQL is very important. The other most commonly used and most need to optimize is limit. MySQL's limit brings great convenience to paging, but when the amount of data is large, limit performance drops sharply. Same as 10

Today, database operations are increasingly becoming a performance bottleneck for the entire application, which is especially noticeable for web applications. It's not just about the performance of the database that DBAs need to worry about, it's

This article was also published in https://github.com/zhangyachen/zhangyachen.github.io/issues/117First explain the MySQL version:select version();+-----------+| version() |+-----------+5.7.17 |+-----------+1rowinset (0.00 sec)Table

MySQL optimization under 8G memory Try the following settings:Key_buffer = 3840MMax_allowed_packet = 16MTable_cache = 1024Sort_buffer_size = 32MRead_buffer_size = 32MRead_rnd_buffer_size = 32MMyisam_sort_buffer_size = 256MThread_cache_size =

When we show the contents of a list, it is inevitable that you will encounter paging problems, because the number of content in the list may be many, but the user can see the size of the interface is limited, it is not possible to display all the

Address of this articleShare an outline:1. Optimize your query for query caching 2. EXPLAIN your SELECT query 3. Use LIMIT 1 4 when only one row of data is used. Jianjian index 5 for search word. In the join table, use a fairly type of example and

When a website reaches a certain scale, various website optimizations are required. In the optimization of websites, database optimization is the most important. Optimization of limit statements in mysql databases. Generally, limit is used on pages

Today, database operations are increasingly becoming a performance bottleneck for the entire application, which is especially noticeable for web applications. It's not just about the performance of the database that DBAs need to worry about, it's

Today, database operations are increasingly becoming a performance bottleneck for the entire application, which is especially noticeable for web applications. It's not just about the performance of the database that DBAs need to worry about, it's

http://blog.chinaunix.net/space.php?uid=374372&do=blog&id=3085009Today, database operations are increasingly becoming a performance bottleneck for the entire application, which is especially noticeable for web applications. It's not just about the