private corporate intranets, cloud computing is now spawning private cloud platforms. The database is the critical part of that platform. Therefore it is imperative that our cloud database be compatible with cloud computing. Key Design principles of the cloud model: The core design principle is dynamic scalability, or the ability to provision and decommission servers on demand. The shared-disk database architecture is ideally suited to cloud computing. It requires fewer and lower cost
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Describe how to format results displayed in calculated fields using Access. Introduction A query is a tool for extracting, combining, and displaying data from one or more tables, according to criteria you specify. For example, in a book inventory database, you could create a query to view a list of all hardcover books with more than 500 pages that you purchased in the past five months. In a query, you can sort information, summarize data (display totals, averages, counts, and so on), display the results
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SCHEME OF EXAMINATION FOR MASTER OF COMPUTER APPLICATIONS (MCA) (SIX-SEMESTER Programme) |Semester – I | |Paper |Title of the Paper |Duration |Maximum Marks |Total | |No. | |Of Exam | | | |
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gaining more followers and popularity. However, despite this trend so evident, not all organizations are clear about how to face the challenge to store, organize, display and analyze large volumes of data. There are multiple techniques in terms of huge database storing approaches that can store petabytes, exabytes and may be zetabytes data. These options are Cassendara, Mongodb and HBase. We will discuss about them one by one and in a proper research method and will compare them in order to contrast their
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1. Explain DML, DDL, DCL and TCL statements with examples? Answer: DDL Data Definition Language (DDL) statements are used to define the database structure or schema. Some examples: * CREATE - to create objects in the database * ALTER - alters the structure of the database * DROP - delete objects from the database * TRUNCATE - remove all records from a table, including all spaces allocated for the records are removed * COMMENT - add comments to the data dictionary
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27, 2012 A Data Goldmine According to Barron’s Business Guides, “Database: a collection of data stored on a computer storage medium, such as a disk, that can be used for more than one purpose. For example, a firm that maintains a database containing information on its employees will be able to sue the same data for payroll, personnel, and other purposes” Dictionary of Computer and Internet Terms (1995, p. 95). Databases are considered to be wealth of resources and opportunity in today’s information
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Database program Vs. Spreadsheet program When choosing which type of program you should use to manage your customer records, you need to know what the difference is between the two. Spreadsheets are designed to analyze data and sort list items, not for long-term storage of raw data. A spreadsheet should be used for ‘crunching’ numbers and storage of single list items. Spreadsheet programs provide the means for keeping inventory, statistical data modeling, and computing data. They also include
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DATABASE A database is an organized collection of data. The data are typically organized to model aspects of reality in a way that supports processes requiring information. For example, modelling the availability of rooms in hotels in a way that supports finding a hotel with vacancies. Database management systems (DBMSs) are computer software applications that interact with the user, other applications, and the database itself to capture and analyze data. A general-purpose DBMS is designed to allow
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GENERALIZED TECHNICAL DATA PROCESSING: 1. Moore’s Law: Actual Meaning – April 1965 Gordon made an observation that approximately every 18-24 months twice as many semiconductors can be stored on a chip/ double storage capacity (NOT a LAW) 2. Moore’s Law: Generalized meanings – the speed of computers is set to double every two years 3. Central Processing Unit (CPU) and the three primary components thereof – the electronic circuitry within a computer that carries out the instructions of
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Database: Database is a group or collection of information which are assembled in such a way that a computer program can easily access the stored information and select required pieces of data. Databases are characterized in such a way that that it helps to store, retrieve, modify and delete data which is linked with various data processing operations. Advantages of Databases: • It helps to control data redundancy by centralizing databases although it is not necessary to eliminate all redundancy
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