What is SQL query and what are its characteristics?

What is SQL query:

sql is the abbreviation of Structured Query Language (Structured Query Language), which is a kind of special-purpose programming Language is a database query and programming language used to access data and query, update and manage relational database systems; it is also the extension of database script files.

SQL is the abbreviation of English Structured Query Language, which means structured query language. The main function of SQL language is to establish contact and communicate with various databases. According to ANSI (American National Standards Institute), SQL is used as the standard language for relational database management systems. SQL Server is a relational database management system (RDBMS) developed and promoted by Microsoft.

Characteristics of sql:

1. True client/server architecture.

2. Graphical user interface makes system management and database management more intuitive and simple.

3. Rich programming interface tools provide users with greater choices for programming.

4. SQL Server is fully integrated with Windows NT, taking advantage of many of NT's features, such as sending and receiving messages, managing login security, and more. SQL Server also integrates well with Microsoft BackOffice products.

5. It has good scalability and can be used across multiple platforms from small computers running Windows 95/98 to large multi-processors running Windows 2000.

6. Support for Web technology enables users to easily publish data in the database to Web pages.

7. SQL Server provides data warehouse functionality, which is only available in Oracle and other more expensive DBMS.

Recommended tutorial: "sql tutorial"

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