Collection of interrelated data B. Collection of programs to access data C. Collection of data describing one particular enterprise D. All of the above. Which of the following is not a level of data abstraction?
Physical Level B. Critical Level C. Logical Level D. View Level. Disadvantages of File systems to store data is: A. Data redundancy and inconsistency B. Difficulty in accessing data C. Data isolation D. Entity sets B. Attributes C. Database D. Which of the following is not a Storage Manager Component? Transaction Manager B. Logical Manager C. Buffer Manager D. File Manager. Data Manipulation Language enables users to A. Retrieval of information stored in database B.By Practicing these interview questions, you can easily crack any Exams interview.
Fully solved examples with detailed answer description. Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record? When transaction Ti requests a data item currently held by TjTi is allowed to wait only if it has a timestamp smaller than that of Tj that is, Ti is older than Tj.
Otherwise, Ti is rolled back dies. This is. When transaction Ti requests a data item currently held by TjTi is allowed to wait only if it has a timestamp larger than that of Tj that is, Ti is younger than Tj. Otherwise, Tj is rolled back Tj is wounded by Ti. The process of viewing the cross-tab Single dimensional with a fixed value of one attribute is. Which one of the following is used to define the structure of the relation ,deleting relations and relating schemas. Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database?
In case of any shut down during transaction before commit which of the following statement is done automatically? SQL view is said to be updatable that is, inserts, updates or deletes can be applied on the view if which of the following conditions are satisfied by the query defining the view?
Database Management System Tutorial
Which of the following is not a integrity constraint? Which of the following is the right syntax for assertion? Data Types Questions and Answers 1. Data Types Questions and Answers 3. Which of the following is used to store movie and image files? Data Types Questions and Answers 4. The user defined data type can be created using Data Types Questions and Answers 5.
Values of one type can be converted to another domain using which of the following?Notifications Mark All Read. A logical schema can be defined as the design of the database at its logical level. In this level, the programmers as well as the database administrator DBA work. You can also submit your own version of explanations under user explanation section and also view other submitted explanations by other users.
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Notifications Please login. Question 1.For Example, university database organizes the data about students, faculty, and admin staff etc. DDL is short name of Data Definition Language, which deals with database schemas and descriptions, of how the data should reside in the database. DBMS allows users the following tasks:. Data Definition: It helps in creation, modification and removal of definitions that define the organization of data in database.
Data Updation: It helps in insertion, modification and deletion of the actual data in the database. Data Retrieval: It helps in retrieval of data from the database which can be used by applications for various purposes. User Administration: It helps in registering and monitoring users, enforcing data security, monitoring performance, maintaining data integrity, dealing with concurrency control and recovering information corrupted by unexpected failure.
File System manages data using files in hard disk. Users are allowed to create, delete, and update the files according to their requirement.
Let us consider the example of file based University Management System. Some of the data is common for all sections like Roll No, Name, Father Name, Address and Phone number of students but some data is available to a particular section only like Hostel allotment number which is a part of hostel office.
Let us discuss the issues with this system:. This article is contributed by Sonal Tuteja and Paramjeet Desai. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. Writing code in comment?
Introduction of DBMS (Database Management System) | Set 1
Please use ide. Improved By : Paramjeet Desai. Load Comments.The database is a collection of inter-related data which is used to retrieve, insert and delete the data efficiently. It is also used to organize the data in the form of a table, schema, views, and reports, etc. For example: The college Database organizes the data about the admin, staff, students and faculty etc. But if there is any mistake, please post the problem in the contact form.
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DBMS Tutorial. Hashing Static Hashing Dynamic Hashing. Next Topic What is Database. Spring Boot. Selenium Py. Verbal A. Angular 7.
Compiler D. Software E. Web Tech. Cyber Sec. Control S. Data Mining. Javatpoint Services JavaTpoint offers too many high quality services. Database management system is software that is used to manage the database. What is Database The database is a collection of inter-related data which is used to retrieve, insert and delete the data efficiently. Using the database, you can easily retrieve, insert, and delete the information.
Database Management System Database management system is a software which is used to manage the database. For example: MySQLOracleetc are a very popular commercial database which is used in different applications. DBMS provides an interface to perform various operations like database creation, storing data in it, updating data, creating a table in the database and a lot more.
It provides protection and security to the database. In the case of multiple users, it also maintains data consistency. DBMS allows users the following tasks: Data Definition: It is used for creation, modification, and removal of definition that defines the organization of data in the database.
Data Updation: It is used for the insertion, modification, and deletion of the actual data in the database. Data Retrieval: It is used to retrieve the data from the database which can be used by applications for various purposes. User Administration: It is used for registering and monitoring users, maintain data integrity, enforcing data security, dealing with concurrency control, monitoring performance and recovering information corrupted by unexpected failure.Database is a collection of information organized in such a way that a computer program can quickly select desired pieces of data.
Collection of interrelated data B. Collection of programs to access data C. Collection of data describing one particular enterprise D. All of the above. Which of the following is not a level of data abstraction? Physical Level B. Logical Level D. View Level. Disadvantages of File systems to store data is: A. Data redundancy and inconsistency B. Difficulty in accessing data C. Data isolation D. Entity sets B. Attributes C. Database D. Which of the following is not a Storage Manager Component?
Transaction Manager B. Logical Manager C. Buffer Manager D. File Manager. Data Manipulation Language enables users to A. Retrieval of information stored in database B. Insertion of new information into the database C. Deletion of information from the database D.
Which of the following is not an Schema? Database Schema B. Physical Schema C. Critical Schema D. Logical Schema. Which of the following is Database Language? Data Definition Language B. Data Manipulation Language C. Query Language D.
Which of the following in not a function of DBA? Network Maintenance B. Routine Maintenance C.You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz. B - BLOB is used to store character data in the database. C - CLOB is used to store large blocks of character data in the database.
B - It will print 'None of the values is matching'. B - A cursor fetches value in a variable having incompatible data type. A - The package body has the codes for various methods declared in the package specification and other private declarations. C - The codes, methods and types declared in package body are not hidden from code outside the package. Q 9 - Which of the following code is the correct syntax for creating an index-by table named salary that will store integer values along with names and the name field will be the key?
Previous Page. Next Page. D - All of the above. Show Answer. Q 3 - Which of the following is true about the following code snippet? Q 4 - Consider the following code snippet: what will be the output?
D - None of the above. Q 10 - What will be the output of the following code? Hope you are doing well! Hope you D - Hello! Previous Page Print Page.