SQL Syntax

Google Advertisements

Prev Tutorial Next Tutorial

SQL Syntax

SQL follows some unique set of rules and guidelines called Syntax. Some basic guidelines related to SQL Syntax are given below;

  • SQL is not case sensitive. Commonly SQL keywords are written in uppercase.
  • You can write SQL statements in one line or in multiple lines.
  • SQL are depends on relational algebra and tuple are relational calculus.

SQL statement

SQL statements are started with any of the SQL commands/keywords like SELECT, INSERT, UPDATE, DELETE, ALTER, DROP etc. and the statement ends with a semicolon (;).

Syntax

	
SELECT * FROM table_name;

Why use semicolon after SQL statements ?

Semicolon is used to separate SQL statements. It is a standard way to separate SQL statements in a database system in which more than one SQL statements are used in the same call.

Some Basic Commands

  • SELECT: It is used for Retrive data from a database.
  • UPDATE: It is used for updates data in database.
  • DELETE: It is used for deletes data from database.
  • CREATE TABLE: It is used for creates a new table.
  • ALTER TABLE: It is used to modify the table.
  • DROP TABLE: It is used for deletes a table.
  • CREATE DATABASE: It is used for creates a new database.
  • ALTER DATABASE:It is used to modify a database.
  • INSERT INTO: It is used for inserts new data into a database.
  • CREATE INDEX: It is used to create an index (search key).
  • DROP INDEX: It is used for deletes an index.

Prev Tutorial Next Tutorial

Google Advertisements

Buy This Ad Space @$50 per Month, Ad Size 600X200 Contact on: hitesh.xc@gmail.com or 8076671483

Pure VPN Privide Lowest Price VPN Just @ $1.65. Per Month with Non Detected IP Lowest Price Non Detected IP VPN

Magenet is best Adsense Alternative here we earn $2 for single link, Here we get links ads. Magenet

Cloud computing is the on demand availability of computer system resources, especially data storage and computing power, without direct active management by the user. Cloud Computing Tutorial

College Projects Related to Java, AWT, C Projects for College, C++ Projects for College, Android Projects. Download Java C C++ Projects

Download Projects

Adsense Advertisements


Buy This ads Space 8076671483

Buy This Ad Space @$120 per Month, Ad Size 300X600 Contact on: hitesh.xc@gmail.com or 8076671483 Try this Keyword C++ Programs