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Main contents of database conceptual design
PHP Chinese website brings you the main contents of database conceptual design: 1. Requirements analysis; 2. Conceptual structure design; 3. Logical structure design; 4. Physical structure design; 5. Data requirements analysis; 6. Entity-relationship model design ; 7. Paradigm design; 8. Database security design; 9. Database operation and maintenance design; 10. Database document and metadata design.
Getting Started with Go Language: Basic Concepts of Database ConnectionsLearn Go language: basic knowledge of connecting to databases, specific code examples are required. Go language is an open source programming language. Its simple and efficient features make it loved and used by more and more developers. During the development process, it is often necessary to establish a connection with the database to perform operations such as reading, writing, updating, and deleting data. Therefore, learning how to connect to a database in Go language is a very important skill. Database driver In the Go language, a database driver is required to connect to the database. At present, the main database drivers of Go language are:
Implementation principle of index in database: B-tree indexThe database will use some methods to store, read and modify data. In actual database management, the database will use both B-tree and B+tree to store data. Among them, B-tree is used for indexing, and B+tree is used to store actual records. This article introduces the indexing mechanism of B-tree in the database. B-tree is a B-tree. It is a data structure and an index type of MySQL. It stores data in the form of nodes arranged in a certain order. The way B-tree stores data is that each node stores keys in ascending order, and each key contains 2 links to the nodes before and after it. The key of the left node is less than or equal to the key of the current node, and the key of the right node is greater than or equal to the key of the current node. If a section
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