Home > Database > SQL > body text

What are the core statements of SQL language?

王林
Release: 2020-11-25 11:12:06
Original
5489 people have browsed it

The core statement of SQL language is the query statement. There are many important statements in SQL, such as [CREATE DATABASE] to create a new database and [ALTER DATABASE] to modify the database.

What are the core statements of SQL language?

#The core statement of SQL language is the query statement.

(Learning video sharing: sql video tutorial)

SQL statement is the abbreviation of structured query language Smmure Query Language, and its core is data query.

The most important DDL statements in SQL:

  • CREATE DATABASE - Create a new database

  • ALTER DATABASE - Modify the database

  • CREATE TABLE - Create a new table

  • ALTER TABLE - Alter (change) a database table

  • DROP TABLE - Delete table

  • ##CREATE INDEX - Create index (search key)

  • DROP INDEX - Delete index

Related recommendations:

SQL database technical articles

The above is the detailed content of What are the core statements of SQL language?. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template