Course19661
Course Introduction:Use PDO mode (PHP data object) to connect and select databases (unified operation of various databases), execute SQL statements and process result sets
Course7440
Course Introduction:Many programmers who have worked for many years still have a very basic understanding of databases. They are confused as soon as they go out for interviews. They don’t understand basic SQL statements, more complex SQL queries, and SQL statement optimization. They don’t even know how to use them. Redis improves system performance and can withstand tens of millions of concurrencies. This set of courses will help you thoroughly understand MySQL locks, execution plans, indexes, MVCC & Redis transactions, cache, breakdown, penetration, avalanche, warm-up, etc., and you can complete all database interviews in one set!
Course3390
Course Introduction:PHP and MySQL database are golden partners. Not only are they free to use, but more importantly, MySQL can be better combined with PHP. PHP also provides a dedicated programming interface for the MySQL database, improving development efficiency.
Course27999
Course Introduction:"Database MySQL Video Tutorial" provides a basic introduction to the database, allowing everyone to first understand the MySQL database, and then explain the DOS operation database.
Course9988
Course Introduction:SSDB is a high-performance NoSQL database developed in C/C++ language. It supports KV, list, map(hash), zset(sorted set), qlist(queue) and other data structures. It is used to replace or cooperate with Redis to store billion-level lists. The data.SSDB is stable, used in production environments, and has been used in many Internet companies_From the SSDB Database User Manual
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Implement filters and pagination using Laravel Eloquent
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How to use open primitive tag in next js 13?
2023-11-10 23:03:51 0 1 527
How to publish SQLite database data to an online MySQL database in Flutter?
How to sync offline SQLite to MySQL online database in Flutter? Any suggestions?
2023-11-10 12:36:40 0 2 247
XAMPP/SQLSRV: Unable to find Sqlsrv in PHPINFO(); - error from connection
2023-11-09 22:34:33 0 1 172
Course Introduction:The biggest function of a database index is to speed up queries. It can fundamentally reduce the number of record rows that need to be scanned. A database index is the data structure of the database. Furthermore, the data structure stores all the values of a certain column in a table. , that is to say, the index is created based on a certain column in the data table.
2020-07-03 comment 07774
Course Introduction:How to tune the index of MySQL database? MySQL database is one of the most commonly used relational database management systems at present. Indexes are one of the important factors in improving query performance in MySQL database. Through reasonable index optimization, the query speed of the database can be accelerated and the overall performance of the system can be improved. This article will introduce how to tune the index of MySQL database and give corresponding code examples. 1. Understand the basic knowledge of indexing. Before performing index optimization, we need to understand some basic indexing knowledge. 1.The role of index
2023-07-13 comment 01151
Course Introduction:Database index practice sharing in MySQL In the process of data processing and management, database index is a very important concept. Data indexing can speed up database queries, thereby improving system responsiveness and throughput. In MySQL database, best practice strategies for database indexing can enable business applications to achieve higher performance and reliability. 1. Definition and type of index An index is a data structure that can quickly locate data rows in a table through index keys. In MySQL, indexes can improve query speed
2023-06-15 comment 0439
Course Introduction:MySQL数据库索引优化可有效提升查询性能。索引通过按特定列排序数据,快速定位满足查询条件的数据块,避免全表扫描。MySQL支持多种索引类型,包括B树索引、哈希索引、全文本索引和空间索引。创建索引需使用CREATE INDEX语句,并选择经常用于搜索或排序的列。优化索引使用包括:只为必要列创建索引、使用覆盖索引、定期维护索引。
2024-08-05 comment 0338
Course Introduction:1. Introduction to MySQL indexes Indexes are a "directory" that the MySQL database adds to one or several columns in the table in order to speed up data query. The index of MySQL is a special file, but the index of the table of the InnoDB type engine (we will explain the MySQL engine in a future article) is an integral part of the table space. MySQL database supports a total of 5 types of indexes, namely ordinary indexes, unique indexes, primary key indexes, composite indexes and full-text indexes. Below, I will introduce these four types of indexes one by one. 2. Detailed explanation of the five types of indexes in MySQL (1) Ordinary index An ordinary index is an ordinary index in the MySQL database. Adding an ordinary index
2023-06-03 comment 01203