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所在平台: Udemy |
课程主页: https://www.udemy.com/course/sql-for-beginners-c/
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课程名称:SQL:初学者的SQL编程 课程概述: SQL(结构化查询语言)是一种用于存储、操作和检索关系数据库中数据的计算机语言,是关系数据库系统的标准语言。所有关系数据库管理系统(RDMS),如MySQL、MS Access、Oracle、Sybase、Informix、Postgres和SQL Server,都使用SQL作为其标准数据库语言。SQL因其多种优势而广受欢迎,包括:允许用户访问关系数据库管理系统中的数据;描述数据;定义并操作数据库中的数据;通过SQL模块、库及预编译器嵌入其他语言;创建和删除数据库及表;在数据库中创建视图、存储过程和函数;以及设置表、过程和视图的权限。 SQL的基本功能包括: - 执行数据库查询 - 从数据库中检索数据 - 向数据库插入记录 - 更新数据库中的记录 - 从数据库中删除记录 - 创建新的数据库 - 在数据库中创建新表 - 在数据库中创建存储过程 - 在数据库中创建视图 - 设置表、过程和视图的权限 SQL于1986年成为美国国家标准协会(ANSI)的标准,并于1987年成为国际标准化组织(ISO)的标准。通过本课程,您将掌握SQL的基本操作,为进一步的数据管理和分析奠定基础。
SQL is Structured Query Language, which is a computer language for storing, manipulating and retrieving data stored in a relational database.SQL is the standard language for Relational Database System. All the Relational Database Management Systems (RDMS) like MySQL, MS Access, Oracle, Sybase, Informix, Postgres and SQL Server use SQL as their standard database language.SQL is widely popular because it offers the following advantages ,Allows users to access data in the relational database management systems.Allows users to describe the data.Allows users to define the data in a database and manipulate that data.Allows to embed within other languages using SQL modules, libraries & pre-compilers.Allows users to create and drop databases and tables.Allows users to create view, stored procedure, functions in a database.Allows users to set permissions on tables, procedures and views.What is SQL?SQL stands for Structured Query LanguageSQL lets you access and manipulate databasesSQL became a standard of the American National Standards Institute (ANSI) in 1986, and of the International Organization for Standardization (ISO) in 1987What Can SQL do?SQL can execute queries against a databaseSQL can retrieve data from a databaseSQL can insert records in a databaseSQL can update records in a databaseSQL can delete records from a databaseSQL can create new databasesSQL can create new tables in a databaseSQL can create stored procedures in a databaseSQL can create views in a databaseSQL can set permissions on tables, procedures, and views.