Skip to main content

SQL Database

What is SQL Database

Database Darabase is the collection of tables, using sql you can insert or retrieve data from database. First you need to create database, you can also drop a database.
database

Syntax to create database

Syntax

CREATE DATABASE DataBase_Name;  
Note: In MySQL, first you need to create database then create table, but in case of Oracle no need to create database, you can create table directly.

Rename Database

By using SQL RENAME DATABASE statement you can change the name of a database. Following syntax are use for rename database.

Syntax

RENAME DATABASE old_db_name TO new_db_name;  

Drop Database

DROP statement is used to delete or remove indexes from a table in the database. You can also delete existing database.

Syntax

DROP DATABASE DataBase_Name;  

Comments

Popular posts from this blog

Introduction of SQL

Introduction of SQL SQL (Structure Query Language)  was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce in the early 1970s. This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasi-relational database management system. Features of SQL SQL is not a case sensitive language. Every commands in SQL should ends with semicolon(;). SQL can also called as sequel (SEQUEL). SQL Sub Language SQL is mainly divided into four sub language Data Definition Language(DDL) Data Manipulation Language(DML) Transaction Control Language(TCL) Data Control Language(DCL) Only for remember You can remember all these command like below; DDL Commands "dr. cat" d-Drop, r-Rename, c-Create, a-Alter, t-Truncate. DML commands "sudi". s-Select, u-Update, d-Delete, i-Insert.

css introduction

What is CSS? •Stands for Cascading Style Sheet •CSS allows you to style HTML elements, or define how they are displayed. •Styles are normally stored in Style Sheets •External Style Sheetscan save you a lot of work •External Style Sheets are stored in CSS files •Multiple style definitions will cascadeinto one •Examples: –Changing the color of text –Specifying the size and position of a div What is CSS? (cont.) •CSS is an alternative to the “style” attribute. – <div style=“height:500px; width:200px”></div> •Advantages: –Can control the style of many different elements with a single command. –Separation of function: HTML can focus on content while CSS handles styling. CSS (Cascading Style Sheet) •Simple mechanism for adding style to web page •Code be embedded into the HTML file •HTML tag: <style type=“text/css”>CODE</style> •Also be in a separate file FILENAME.css •HTML tag: <link rel=“stylesheet” href=“scs.css” type=“text/css”> •St...

Text Formatting

• Text formatting tags modify the text between the opening tag and the closing tag – Ex. <b>Hello</b> makes “Hello” bold