数据库英文单词,Introduction to Database English Vocabulary

数据库在英文中通常被称为 database。

Introduction to Database English Vocabulary

Database management systems (DBMS) are integral to modern computing, enabling the storage, retrieval, and manipulation of data. To navigate and communicate effectively within this domain, it's essential to be familiar with a set of specialized English vocabulary. This article delves into some of the most commonly used database English words, providing definitions and examples to enhance understanding.

Basic Database Concepts

Understanding the foundational terms is crucial for anyone working with databases. Here are some key terms:

Database (DB): A structured collection of data stored in a computer system.

Database Management System (DBMS): Software used to manage databases, allowing for the creation, modification, and querying of data.

Table: A collection of related data organized in rows and columns.

Record or Row: A single set of data within a table.

Field or Column: A specific piece of data within a record, identified by a unique name.

SQL Commands

Structured Query Language (SQL) is the standard language for managing databases. Familiarize yourself with these essential SQL commands:

CREATE: Used to create a new table or database.

SELECT: Retrieves data from one or more tables.

INSERT: Adds new data to a table.

UPDATE: Modifies existing data in a table.

DELETE: Removes data from a table.

Entity: A distinct object or concept in the real world that can be represented in the database.

Attribute: A property or characteristic of an entity.

Relationship: The association between two or more entities.

Normalization: The process of organizing data to reduce redundancy and improve data integrity.

Data Integrity and Constraints

Ensuring data integrity is vital for maintaining the reliability of a database. Here are some terms related to data integrity and constraints:

Data Integrity: The accuracy, consistency, and reliability of data stored in a database.

Primary Key: A unique identifier for each record in a table.

Foreign Key: A field in one table that refers to the primary key in another table, establishing a relationship between the two tables.

Unique Constraint: Ensures that a column contains unique values.

Not Null Constraint: Ensures that a column cannot contain null values.

Performance Optimization

Optimizing database performance is essential for efficient data retrieval and manipulation. Here are some terms related to performance optimization:

Index: A data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure.

Query Optimization: The process of improving the performance of a SQL query.

Join: A SQL operation that combines rows from two or more tables based on a related column between them.

Partitioning: The process of dividing a large table into smaller, more manageable pieces.

Conclusion

Mastering database English vocabulary is essential for anyone working with databases. By familiarizing yourself with the terms and concepts discussed in this article, you'll be better equipped to navigate the world of database management and communication. Whether you're a beginner or an experienced professional, investing time in learning these terms will undoubtedly enhance your skills and knowledge in the field.