MySQL database functions are frequently used in actual operations. Therefore, it is best to have a certain understanding of MySQL database functions. I found this article very well on a website, I have made a special offer for you to share with you
First, IntroductionNginx is a very lightweight HTTP server written by the Russians, Nginx, which is pronounced "engine X" and is a high-performance HTTP and reverse proxy server, as well as a IMAP/POP3/SMTP proxy server. Nginx was developed by the
High Performance MySQL Reading Notes-query performance optimization, high performance mysql
For high-performance database operations, it is not enough to design the optimal database table structure and build the best index. You also need to design
Php + mysql obtains records in the database (especially the efficient paging function ). MySQL (the best combination with PHP). php (as the current mainstream development language) to obtain records in the database, complete personal experience, for
What is an API?An application interface (application programming interface abbreviation) that defines the classes, methods, functions, variables, and so on everything in your application that needs to be called in order to complete a particular task.
For high-performance database operation, it is not enough to design the optimal library table structure, and to establish the best index, but also need reasonable design query. If the query is poorly written, high performance cannot be achieved even
: This article describes the data query process from PHP to MySQL. For more information about PHP tutorials, see. From HP layer to MySQL layer
Shows the levels of components from Php to SQL:
Ext/mysqli and ext/mysql are client-side extension
Compare the buffer query and no buffer query of MySQL in PHP, phpmysql
About cache query and unbuffered QueryThe MySQL client has two types of queries:Buffer query:The query results will be received and stored in the client cache, And the next
HP layer to MySQL layer
The PHP to the SQL component hierarchy is shown in the following illustration:
Ext/mysqli and Ext/mysql are the client's extender libraries (library functions), which are extended libraries at the client-side scripting
About buffered queries and no buffer queriesThere are two types of queries for MySQL clients:buffered queries: will receive the results of the query and store them in the client's cache, and the request to obtain row records is only obtained locally.
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