details of successful diy boatbuilding initiatives. ) 2c. Some 300 folks, a initial Lorem lpsum 344 boatplans/question/tracker-boat-for-sale-craigslist-question click to to support in giving your self highlight service is with your toes. This finish will work as the sealant as well as stop a timber from 10tj waterlogged.
Here EmpNo, Name and Salary are three different fields. A row stores complete information of a record whereas column stores only similar data values for all records. Distinguish between data and information. Define query in the context of database. These statements give you filtered data according to your conditions and specifications indicating the fields, records and summaries which a user wants to fetch from a database.
Define forms and what is the need of using them? CBSE Answer: In a database, a form is a window or a screen that contains numerous fields or spaces to enter data. Forms can be used to view and edit your data.
It is an interface in user specified layout. People generally prefer to enter data into a well-designed form, rather than a table. What do you understand by report?
Answer: When you want to print those records which are fetched from your database, design a report. It is an effective way to present data in a printed format. It allows you to represent data retrieved from one or more tables, so that it can be analysed. What do you mean by DBMS? CBSE Answer: It is a collection of programs that enables users to create, maintain database and control all the access to the database.
DBMS is a software package that manages database, e. DBMS is actually a tool that is used to perform any kind of operation on data in database. Relational databases are powerful, so they require few assumptions about how data is related or how, it will be extracted from the database. A table named School containing data of students of the whole school is created, where each record consists of several fields including AdmissionNo Admission Number , RollNo Roll Number , Name.
Which field out of these three should be set as the primary key and why? CBSE Answer: AdmissionNo should be set as primary key because admission numbers are unique for each and every students of the school, which is not possible in the case with RollNo and Name. What is the utility of primary key in database? Write distinct features of primary keys. It can be a column or a set of columns in the table. Main features of primary key are as follows:.
Discuss the components of a database. Answer: A database consists of several components. Each component plays an important role in the database system environment. The major components of database are as follows:. Define database management system.
Write two advantages of using database management system for school. The primary goal of the DBMS is to provide an environment that is both convenient and efficient for user to retrieve and store information. Distinguish between a record and a field in a table, with an example. Write the steps to design a database. Answer: Steps to Design a Database There are various steps to design a database which are as follows:.
Sanchita is working for a nationalised bank and is in the process of creating a table to store the details of customers of the bank. Find out, which of the following fields of table Bank can be selected as primary key, candidate key and alternate key?
Consider the following database Student. The director of a company uses a database to store data about job title. This is a part of the database given below. Identify the columns out of the given three, which should not be present in each of the following tables: Answer: i DateofBirth ii Admno iii Phonenumber. Facilities offered by databases are a The ability to store a large amount of data in a structured format, easy update, sort query, production of reports.
Which of the following is not an example of database? CBSE a Cross knot game b Employee payroll management c Numeric calculator d Customer management system Answer: c Numeric calculator because it is used to calculate the numeric numbers only as it is unable to store data. Database is a combination of CBSE a hardware and software b hardware and operating system c software and operating system d utility programs Answer: a A database consists of several components.
These are data, software, hardware and user. Database is made up of all the following components except a tables b queries c forms d formula bar Answer: d Database is made up of tables, queries and forms.
As we know, relations are known as table. Internet: World Wide Web, web servers, web clients, web sites, web pages, web browsers, blogs, newsgroups, HTML, web address, e-mail address, downloading and uploading files from a remote site. Services available on the internet: information retrieval, locating sites using search engines and finding people on the net;.
Web services: chat, email, video conferencing, e-Learning, e-Banking, e-Shopping, e-Reservation, e-Governance, e-Groups, social networking. HTML tags: html, head, title, body, attributes: text, background, bgcolor, link, vlink, alink , br break , hr horizontal rule , inserting comments, h Description lists: dl, dt and dd.
Attributes of ol start, type , ul type. Font tags attributes: face, size, colour. Insert images: img attributes: src, width, height, alt , sup super script , sub subscript. Embed audio and video in an HTML page. Create a table using the tags: table, tr, th, td, rowspan, colspan. Links: the significance of linking, anchor element attributes: href, mailto , targets.
Cascading style sheets: colour, background-colour, border-style, margin, height, width, outline, font family, style, size , align, float. Software licenses and the open-source software movement. Intellectual property rights, plagiarism and digital property rights. Freedom of information and the digital divide. E-commerce: Privacy, fraud, secure data transmission. Class - X. Practical Work. Lab Exercises. Create static web pages. Embed pictures, audio and videos in an HTML page. Add tables and frames in an HTML page.
Decorate web pages using graphical elements. Later, the military allowed universities to join the network for sharing the hardware and software resources. The network grew bigger and bigger and gave birth to the present-day Internet. The Internet is an inter-connection of computer networks, whereas WWW is a collection of digital pages to access information over the Internet.
WWW is an information system of interlinked hypertext documents that are accessed via the Internet. A webpage is what you see in your browser when you are on the internet. Think of the webpage as a page in a magazine. You may see text, photos, images, diagrams, links, advertisements and more on any page you view. The most popular web browsers include. This allows a discussion to take place among several people.
Every computer connected to the internet has its unique web address , without which it cannot be reached by other computers. The general format of an email address is local-part domain , and a specific example is jsmith example.
An address consists of two parts. The part before the symbol local-part identifies the name of a mailbox. This is often the username of the recipient, e. The part after the symbol domain is a domain name that represents the administrative realm for the mail box, e.
With a URL, you can locate and bookmark specific pages and files for your web browser. URLs can be found all around us. They may be listed at the bottom of business cards, on TV screens during commercial breaks, linked in documents you read on the internet or delivered by one of the internet search engines.
Sometimes they are longer and more complicated, but they all follow acknowledged rules for naming URLs. Http is the acronym for "Hypertext Transfer Protocol," the data communication standard of web pages.
When a web page has this prefix, the links, text, and pictures should work properly in your web browser. Https is the acronym for "Hypertext Transfer Protocol Secure. Whenever you log in to your online bank account or a shopping site that you enter credit card information into, look for "https" in the URL for security. Downloading is a broad term that describes transferring something you find on the internet or World Wide Web to your computer or other device. Commonly, downloading is associated with songs, music and software files.
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