how to speed up database queries

Atitit Cache Caching Path Attilax Etti Summary 1. Purpose of using caching (using cache) 1 1.1.1. Reduce the burden on the database by achieving the target 1 1.2. Speed up the query 2 2. Common parameter expiration time of the cache (seconds 2 3.

How can I speed up queries?1. upgrade hardware2. Create an index based on the query conditions, optimize the index, optimize the access mode, and limit the data volume of the result set.3. Expand the server memory4. Increase the number of server

1. To optimize the query, avoid full-table scanning as far as possible, and first consider establishing an index on the columns involved in the Where and order by.2. Avoid null-valued fields in the WHERE clause, which will cause the engine to

How to speed up database query and speed up database1. To optimize the query, try to avoid full table scanning. First, consider creating an index on the columns involved in where and order.2. Try to avoid null value determination on the field in the

[Reprint: Http://www.3lian.com/edu/2013/12-30/120014.html]1. Upgrading hardware2, according to the query criteria, index, optimize the index, optimize access mode, limit the data volume of the result set.3, expand the memory of the server4. Increase

However, when the user uses the like statement in a large table, it is found that the query statement is running very slowly. What is the cause of this? In fact, whether it is like keyword, if the use of matches keyword, if in a large number of data

The following articles mainly introduce three very useful methods to optimize MySQL database queries. We all know that in MySQL database query optimization queries, database applications (such as MySQL (the best combination with PHP) actually mean

This example describes how MySQL uses temporary tables to speed up queries. Share to everyone for your reference. The specific analysis is as follows: With a MySQL temp table, sometimes you can speed up the query, and here's a detailed description

About MySQL TuningThere are 3 ways to speed up the MySQL server, from low to high efficiency:Replace the problematic hardware. Tuning the settings for the MySQL process. Optimize the query.Replacing the problematic hardware is often our first

For PHP application speed, speed up, and then speed! Part 3rd: Using the Memcache daemon to cache data in memory The first two articles in this series provide the technology to speed up the PHP application. The 1th section describes the XCache,