normalization in mysql

In the design of dynamic websites, the importance of database design is self-evident. If the design is not proper, it is very difficult to query, Program Performance will also be affected. Whether you are using a MySQL or Oracle database, you can

In the design of dynamic website, the importance of database design is self-evident. If the design is improper, the query is very difficult, the performance of the program will be affected. Whether you're using MySQL or an Oracle database, you can

In the design of dynamic websites, the importance of database design is self-evident. If the design is not proper, the query will be very difficult and the program performance will be affected. Whether you are using a mySQL or Oracle database,

In the design of dynamic websites, the importance of database design is self-evident. If the design is not proper, the query will be very difficult and the program performance will be affected. Whether you are using a mySQL or Oracle database,

First paradigm: A field in a database table is a single attribute and cannot be divided.One sentence summary: As long as the relational database is satisfied with the first paradigm.Second paradigm: Entity's attributes are completely dependent on

(optimized from the bottom to the top)First, the storage layer optimization:Use RAID 1+0, do not use RAID 5/or RAID 6RAID disks use Mind 8 disks as a set of LUNs.Avoid running the database server disables Liunx soft LVM. (Severe impact on

CSDN Blog Relocation 1. Introduction In the Web application architecture, the data persistence layer (usually a relational database) is a key core part, which has a very important impact on the performance of the system. MySQL is currently the

1. Introduction to the databaseWhat is a database? (https://www.cnblogs.com/alex3714/articles/5950372.html)A database is a warehouse that organizes, stores, and manages data according to its structure.Each database has one or more different APIs for

Some experience in using MYSQL services, mainly from the following aspects: MYSQL service planning and design. 1. the versatility of the installation and configuration of the MYSQL service; 2. convenient system upgrade and data migration; 3. fast

IntroductionMySQL is currently one of the most widely used relational database, if used properly, can support enterprise-class high concurrency, high-reliability services, improper use and even a slightly higher level of personal sites are difficult