STRUCTURED QUERY LANGUAGE(SQL) Created by: B Mokshagna Reddy (BMR) SQL DATA DEFINITION AND DATATYPES SQL Schema: An SQL schema is identified by a schema name and includes an authorization identifier name to indicate user or account who owns the schema, as well as descriptor for each elements in the schema. Schema creation with authorization: CREATE SCHEMA DATABASE_NAME AUTHORIZATION IDENTIFIER; Eg: CREATE SCHEMA COMPANY AUTHORIZATION ‘JSMITH’; Catalog: Named collection of schemas. Data Definition, Constraints, and Schema Changes Used to CREATE, DROP, and ALTER the descriptions of the tables (relations) of a database Creating a Database Syntax: CREATE DATABASE database_name; Creating a Table Syntax CREATE TABLE table_name (Column_name datatype[(size)], Column_name datatype[(size)], ); Specifies a new base relation by giving it a name, and specifying each of...
CSS INTRODUCTION
Created by: B Mokshagna Reddy (BMR)
INTRODUCTION
➢CSS is the language we use to style a Web page.➢CSS stands for Cascading Style Sheets.
➢CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.
➢CSS describes how HTML elements are to be displayed on screen, paper, or in other media.
➢CSS saves a lot of work. It can control the layout of multiple web pages all at once.
➢External stylesheets are stored in CSS files.
➢CSS describes how HTML elements should be displayed.
➢Having no CSS is like living a faded life. No excitement, no moods, no emotions, just a straight-up structure with some content in it.
Types in CSS
CSS can be added to HTML documents in 3 ways: ➢Inline - by using the style attribute inside HTML elements.➢Internal - by using a <style> element in the <head$gt; section.
➢External - by using a <link> element to link to an external CSS file.
Inline CSS
CSS can be added to HTML documents in 3 ways: ➢Inline - by using the style attribute inside HTML elements.➢Internal - by using a <style> element in the <head> section.
➢External - by using a <link> element to link to an external CSS file.
Internal CSS
➢An internal CSS is used to define a style for a single HTML page.➢An internal CSS is defined in the head section of an HTML page, within a style element.
➢The following example sets the text color of ALL the h1 elements (on that page) to blue, and the text color of ALL the p elements to red. In addition, the page will be displayed with a "powderblue" background color.
External CSS
➢An external style sheet is used to define the style for many HTML pages.➢To use an external style sheet, add a link to it in the section of each HTML page.
CSS Comments
➢CSS comments are not displayed in the browser, but they can help document your source code.Know More at BMR EDUCATION
Comments
Post a Comment