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The following together to understand the advantages of MySQL database and installation methods, I believe you will benefit a lot after reading, the text in the essence is not much, hope that the advantages of MySQL database and installation methods of this short content is what you want.

The basic concept of database

data

Symbolic records that describe things are called data (Data), including numbers, text, graphics, images, sounds, archival records, etc., stored in a unified format in the form of "records". The table organizes different records together, and the "table" is the database used to store specific data, that is, the collection of tables. It is the development history of the interrelated data database system that the warehouse stores the data in a certain organizational manner. since the 1960s, the first generation database system came out. They are the database systems of hierarchical model and mesh model, which provide strong support for unified management and sharing of data. in the early 1970s, the second generation database-relational database began to appear in the early 1980s. IBM's relational database system DB2 came out as the relational database of the second generation database system, and began to gradually replace the database of hierarchical and mesh model. Become the dominant database and become the mainstream of the industry. Up to now, relational database systems still occupy the main position of database applications. Since the 1980s, a variety of new database systems have emerged to adapt to different fields, such as engineering database, multimedia database, graphic database, intelligent database, distributed database and object-oriented database, especially object-oriented database system. Because of its strong practicability and wide adaptability, it is favored by people in the late 1990s, forming a situation in which a variety of database systems jointly support the application. Of course, in business applications, relational databases still dominate, but some new elements have been added to the mainstream business database systems. For example, the "relational-object" database model supported by Oracle introduces the mainstream database today. SQL Server (Microsoft products) is simple and easy to use for Windows operating systems. Oracle (Oracle products) is secure and perfect for all major platforms. Operating complex DB2 (IBM products) for all mainstream platforms large, secure, perfect MySQL (Oracle acquisition) Free, Open Source, small size Relational Database system is a relational model-based database system, its basic concept comes from the relational model, the relational model is based on the theory of relational algebra, and the data structure uses two-dimensional data tables that are easy to understand. A simple "entity-relationship" diagram can be used to directly represent the following Emurr diagram, which contains three elements: entities (data objects), relationships and attributes.

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