File Name: dbms basic questions and answers .zip
By Practicing these interview questions, you can easily crack any Exams interview. Fully solved examples with detailed answer description.
Details Last Updated: 07 January What are the different components of DBMS? Some questions are easier, others harder; if a question sounds hard, skip it and return later. Database is collection of data and Managing database includes storing, querying, updation, and administration of databases. You have 90 minutes to work on the exam.
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 Tj , Ti 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 Tj , Ti 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? 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? Which one of this can be considered as a super key?
The subset of super key is a candidate key under what condition? Which one of the following attribute can be taken as a primary key? Deadlocks Questions and Answers 1. Deadlocks Questions and Answers 2. Deadlocks Questions and Answers 3. What are the ways of dealing with deadlock? Deadlocks Questions and Answers 4. This is Deadlocks Questions and Answers 5.
This is Indexes Questions and Answers 1. What is the purpose of index in sql server Indexes Questions and Answers 2. How many types of indexes are there in sql server? Indexes Questions and Answers 3. How non clustered index point to the data? Indexes Questions and Answers 4. Which one is true about clustered index? Indexes Questions and Answers 5.
What is true about indexes? Joins Questions and Answers 1. Joins Questions and Answers 2. Which of the join operations do not preserve non matched tuples. Joins Questions and Answers 3. What type of join is needed when you wish to include rows that do not have matching values? Joins Questions and Answers 4. How many tables may be included with a join? Joins Questions and Answers 5. Which of the following is a physical storage media?
Which of the following stores several gigabytes of data but usually lost when power failure? Which level of RAID refers to disk mirroring with block striping? Which one of the following is a Stripping technique? Which of the following is a fundamental operation in relational algebra? Which of the following is used to denote the selection operation in relational algebra? Create table employee name varchar ,id integer What type of statement is this? Which of the following makes the transaction permanent in the database?
In order to undo the work of transaction after last commit which one should be used? Consider the following action: Transaction….. Commit; Rollback; What does Rollback do? What are the after triggers? Which of the following creates a virtual relation for storing the query?
Which of the following is the syntax for views where v is view name? Fully solved examples with detailed answer description, explanation are given and it would be easy to understand. The DBMS provides users and programmers with a systematic way to create, retrieve, update and maintain data in the tables.
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ED Jobs M. Com Jobs B. Sc Jobs B. E Jobs Ph. Here we have provided some commonly asked DBMS interview questions along with their specific answers. What are super, primary, candidate and foreign keys? No two rows can have the same value of super key attributes.
Solved examples with detailed answer description, explanation are given and it would be easy to understand. View the solution for the problems with feel and good user interface; easily go through all questions and answers. You can easily answer the interview questions based on DBMS Basics by practicing the exercises given below.
A prearranged collection of figures known as data is called database. Database Management Systems DBMS are applications designed especially which enable user interaction with other applications. Edgar F. Codd proposed the relational model in A database language may also incorporate features like: DBMS-specific Configuration and management of storage engine Computations to modification of query results by computations, like summing, counting, averaging, grouping, sorting and cross-referencing Constraint enforcement Application Programming Interface 7 What do database languages do?
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?
A system or software which keeps information of data and to perform several operations on data stored within the database. The independence means manipulating the one other should not be impacted. These are as follows-. This is the virtual table.
DBMS is a collection of programs that facilitates users to create and maintain a database. In other words, DBMS provides us an interface or tool for performing different operations such as the creation of a database, inserting data into it, deleting data from it, updating the data, etc. DBMS is a software in which data is stored in a more secure way as compared to the file-based system. Using DBMS, we can overcome many problems such as- data redundancy, data inconsistency, easy access, more organized and understandable, and so on.
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Если там и произошло что-то неприятное, то дело не в вирусах. Молчание. - Мидж. Ты меня слышишь.
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