1 BCA IV Sem Database Management System Multiple choice questions 1. A Database Management System (DBMS) is A. Collection of interrelated data B. Collection of programs to access data C. Collection of data describing one particular enterprise D. All of the above 2. Which of the following is not a level of data abstraction? A. Physical Level B. Critical Level C. Logical Level D. View Level 3. Disadvantages of File systems to store data is: A. Data redundancy and inconsistency B. Difficulty in accessing data C. Data isolation D. All of the above 4. In an Entity-Relationship Diagram Rectangles represents A. Entity sets B. Attributes C. Database D. Tables 5. Which of the following is not a Storage Manager Component? A. Transaction Manager B. Logical Manager C. Buffer Manager D. File Manager
2 6. 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. All of the above 7. Which of the following is not a Schema? A. Database Schema B. Physical Schema C. Critical Schema D. Logical Schema 8. Which of the following is Database Language? A. Data Definition Language B. Data Manipulation Language C. Query Language D. All of the above 9. Which of the following in not a function of DBA? A. Network Maintenance B. Routine Maintenance C. Schema Definition D. Authorization for data access 10. Which of the following is a Data Model? A. Entity-Relationship model B. Relational data model C. Object-Based data model D. All of the above 11. The number of entities associated in relationship is called as it s... A) Cardinality B) Degree C) Tuples D) Entity 12. The DBMS utility... allows reconstructing the correct state of database from the backup and history of transactions.
3 A) Backup B) Recovery C) Monitoring D) Data loading 13. In the... Normal form, a composite attribute is converted to individual attributes. A) First B) Second C) Third D) Fourth 14. In RDBMS, Data is presented as a collection of... A) Table B) Attributes C) Relations D) Entities 15. A... normal form, normalization will be needed where all attributes in a relation tuple are not functionally dependent only on the key attribute. A) First B) Second C) Third D) Fourth 16. To select all columns from the table the syntax is: A) Select all from table_name B) Select * from table_name C) Select from table_name D) Non of the above 17. If an attribute of a composite key is dependent on an attribute of the other composite key, normalization called... is needed. A) DKNF B) BCNF C) Fourth D) Third 18. Identify the criteria for designing database from the point of view of user A) No redundancy B) No inapplicable attributes C) Uniformity in naming & definitions of the data items D) All of the above 19. The... operator preserves unmatched rows of the relations being joined. A) Inner join B) Outer join
4 C) Union D) Union join 20. Which are the not user in End-user: A) Naïve users B) Casual users C) Sophisticated user D) All of these 21. DBMS is a collection of.. that enables user to create and maintain a database. A) Keys B) Translators C) Programs D) Language Activity 22. In a relational schema, each tuple is divided into fields called A) Relations B) Domains C) Queries D) All of the above 23. In an ER model,. is described in the database by storing its data. A) Entity B) Attribute C) Relationship D) Notation 24. DFD stands for A) Data Flow Document B) Data File Diagram C) Data Flow Diagram D) Non of the above 25. A top-to-bottom relationship among the items in a database is established by a A) Hierarchical schema B) Network schema C) Relational Schema D) All of the above 26. table store information about database or about the system. A) SQL B) Nested C) System D) None of these 27...defines the structure of a relation which consists of a fixed set of attribute-domain pairs. A) Instance B) Schema C) Program
5 D) Super Key 28. clause is an additional filter that is applied to the result. A) Select B) Group-by C) Having D) Order by 29. A logical schema A) is the entire database B) is a standard way of organizing information into accessible parts. C) describes how data is actually stored on disk. D) All of the above 30. is a full form of SQL. A) Standard query language B) Sequential query language C) Structured query language D) Server side query language 31. The candidate key is that you choose to identify each row uniquely is called.. A) Alternate Key B) Primary Key C) Foreign Key D) None of the above is used to determine whether of a table contains duplicate rows. A) Unique predicate B) Like Predicate C) Null predicate D) In predicate 33. To eliminate duplicate rows is used A) NODUPLICATE B) ELIMINATE C) DISTINCT D) None of these 34. State true or false i) A candidate key is a minimal super key. ii) A candidate key can also refer to as surrogate key. A) i-true, ii-false B) i-false, ii-true C) i-true, ii-true D) i-false, ii-false 35. DCL stands for A) Data Control Language B) Data Console Language
6 C) Data Console Level D) Data Control Level 36. is the process of organizing data into related tables. A) Normalization B) Generalization C) Specialization D) None of the above 37. A. does not have a distinguishing attribute if its own and mostly are dependent entities, which are part of some another entity. A) Weak entity B) Strong entity C) Non attributes entity D) Dependent entity is the complex search criteria in the where clause. A) Substring B) Drop Table C) Predict D) Predicate 39. is preferred method for enforcing data integrity A) Constraints B) Stored Procedure C) Triggers D) Cursors 40. The number of tuples in a relation is called it s. While the number of attributes in a relation is called it s.. A) Degree, Cardinality B) Cardinality, Degree C) Rows, Columns D) Columns, Rows 41. State true or false. i) Select operator is not a unary operator. ii) Project operator chooses subset of attributes or columns of a relation. A) i-true, ii-false B) i-true, ii-true C) i-false, ii-true D) i-false, ii-false 42. database is used as template for all databases created. A) Master B) Model C) Tempdb D) None of the above
7 43. One aspect that has to be dealt with by the integrity subsystem is to ensure that only valid values can be assigned to each data items. This is referred to as A) Data Security B) Domain access C) Data Control D) Domain Integrity operator is basically a join followed by a project on the attributes of first relation. A) Join B) Semi-Join C) Full Join D) Inner Join 45. Which of the following is not a binary operator in relational algebra? A) Join B) Semi-Join C) Assignment D) Project 46. Centralizing the integrity checking directly under the DBMS.. duplication and ensures the consistency and validity of the database. A) Increases B) Skips C) Does not reduce D) Reduces 47. Which of the following is/are the DDL statements? A) Create B) Drop C) Alter D) All of the above is used to retrieve tuples from the relation. A) Create B) Drop C) Select D) All of the above 49. defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity. A) Column B) Constraint C) Index D) Trigger 50. For like predicate which of the following is true.
8 i) % matches zero of more characters. ii) _ matches exactly one character. A) i-only B) ii-only C) Both of them D) None of them 51. The relational model is based on the concept that data is organized and stored in two-dimensional tables called. A) Fields B) Records C) Relations D) Keys contains information that defines valid values that are stored in a column or data type. A) View B) Rule C) Index D) Default 53. Which of the syntax is correct for insert statement? i) insert into <table_name> values <list of values> ii) insert into <table_name> (column list) values <list of values> A) i-only B) ii-only C) Both of them D) None of them 54.. first proposed the process of normalization. A) Edgar. W B) Edgar F. Codd C) Edward Stephen D) Edward Codd 55. For using a specific database command is used. A) Use database B) <Database name> use C) Both A &B D) None of them 56. Which of the following is not comparison operator? A) <> B) < C) =<
9 D) >= 57. An outstanding functionality of SQL is its support for automatic to the target data. A) Programming B) Functioning C) Navigation D) Notification 58. is a special type of integrity constraint that relates two relations & maintains consistency across the relations. A) Entity Integrity Constraints B) Referential Integrity Constraints C) Domain Integrity Constraints D) Key Constraints 59...specifies a search condition for a group or an aggregate. A) GROUP BY Clause B) HAVING Clause C) FROM Clause D) WHERE Clause 60. Drop Table cannot be used to drop a table referenced by a constraint. A) Local Key B) Primary Key C) Composite Key D) Foreign Key 61. Which are the not features of a DBMS which provide a number of advantages for data management: A. DML B. DDL C. SDL D. None of these 62. Minimal data redundancy means improved : A. Data independence B. Data consistency C. Data integration D. Data sharing 63. Who access the database occasionally and have different needs each time: A. Naïve users B. Casual users C. Sophisticated user D. All of these 64. System analyst and application programmers are commonly referred to as. A. Naïve users B. Casual users
10 C. Software engineers D. Programmers 65. Who interact with the system without writing a program: A. Naïve users B. Casual users C. Sophisticated user D. All of these 66. Who interact with the system by invoking one of the permanent application program: A. Naïve users B. Casual users C. Sophisticated user D. All of these 67. The main interface that a naive user uses is a form interface using : A. DDL B. GUI C. OLAP D. DML 68. The provision of is a major objective for database system: A. Data independence B. Data consistency C. Data integration D. Data sharing 69. is a translates into low-level instruction that a query processor understands: A. DBA B. DBMS C. DBS D. DDL compiler 70. Retrieval of data is done by using a : A. Stack B. Query C. Linked list D. All of these 71. DML is a language by which user accesses or manipulates the : A. Data model B. Data consistency C. Data integration D. Data sharing
11 72. Which is the central component of the DBMS software that can also be termed as the database control system? A. Data consistency B. Data integration C. Data sharing D. Data manager 73. Which is stored information about description of data in the database: A. Data files B. Data dictionary C. Database D. Data administrator 74. After conversion of high level queries into low level commands for file access and is called compiled : A. DDL B. DML C. SDL D. VDL 75. Which is installs, configures, troubleshoots and maintains a database system: A. DBA B. DDL C. DML D. SDL 76. Which is incorporated to create an appropriate physical database that is transformed by a logical data model: A. SDL B. VDL C. Both D. None 77. In which end is really just any application that runs on top of the DBMS and acts as a user interface: A. Back end B. Front end C. Both D. None 78. Data are stored in as database: A. Data files B. Data dictionary C. Database D. Data administrator 79. ACID properties of transactions are
12 A. Atomicity B. Consistency C. Isolation D. Durability 80. DA stands for: A. Data administrator B. Database active C. Define application D. All of these 81. Which is the person responsible for overall control f the database system: A. DDL B. DBMS C. DBA D. SDL 82. DBA stands for: A. Database maintenance B. Database administrator C. Database backup D. Database designer 83. Transaction is an action used to perform some manipulation on data stored in the : A. Memory B. Record C. Database D. All of these 84. The data in the database at a particular moment in time is called a A. Database state B. Valid state C. Initial state D. Empty state 85. Which is a DBMS keeps back-up copies of the database: A. Backup B. Recovery C. Both D. None 86. In which the database can be restored up to the last consistent state after the system failure: A. Backup B. Recovery C. Both D. None
13 87. How many levels of abstraction in DBMS: A. 2 B. 3 C. 4 D Which are the three levels of abstraction: A. Physical B. Logical C. External D. All of these 89. How many types of data independence: A. 1 B. 2 C. 3 D Which are the types of data independence: A. Physical B. Logical C. Both D. All of these 91. Which is the transformation of requests and results between different levels of abstraction: A. Evaluation B. Mapping C. Compiler D. Precompiler 92. Which mapping exists between the conceptual and internal levels: A. Conceptual B. Internal C. Both D. None 93. Which mapping exists between the external and conceptual levels: A. Conceptual B. External C. Both D. None 94. The related and interconnected software components of a DBMS are described by the : A. Logical architecture B. Physical architecture C. Both D. None
14 95. Which are the types of physical DBMS architecture can be split : A. Back end B. Front end C. Both D. None 96. The DML is called: A. Sublanguages B. Host languages C. VDL D. DDL 97. The overall description of a database is called : A. Data definition B. Data manipulation C. Data integrity D. Database schema 98. Which is proper subset designed to support views belonging to different classes of users in order to hid or protect information: A. Schema B. Subschema C. Non-schema D. None-subschema 99. A data dictionary is a repository that manages : A. Database B. Memory C. Metadata D. All of these 100. A tuple is a(n): A. column of a table B. two dimensional table C. row of a table D. key of a table 101. An attribute is a(n): A. two dimensional table B. row of a table C. key of a table D. column of a table 102. The method of access which uses key transformation is known as A. Direct
15 B. Hashing C. Random D. Sequential 103. The statement in SQL which allows to change the definition of a table is A. Create B. Alter C. Select D. Update 104. This is not a date type in SQL Server 2000 A. Char B. String C. Bigint D. Decimal 105. Which of the following is NOT a basic element of all versions of the E-R model? A. Entities B. Relationships C. Attributes D. Primary key 106. The SQL command to creating a table is: A. Make table B. Alter table C. Create table D. Define table is a virtual table A. Stored procedure B. View C. Table D. Rules 108. The DROP TABLE statement: A. Deletes the table structure only B. Deletes the table structure along with the table data C. works whether or not referential integrity constraints would be violated D. is not an SQL statement 109. The SQL statement to create a view is: A. CREATE VIEW B. MAKE VIEW C. SELECT VIEW D. INSERT VIEW 110. Which of the following is NOT a type of SQL constraint? A. PRIMARY KEY B. FOREIGN KEY
16 C. ALTERNATE KEY D. UNIQUE 111. The following are functions of a DBMS except A. creating and processing forms B. processing data C. creating databases D. administrating databases 112. What SQL structure is used to limit column values of a table? A. The LIMIT constraint B. The CHECK constraint C. The VALUE constraint D. None of the above is correct Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that: A. A B B. A C C. A (B, C). D. (B,C) A The different classes of relations created by the technique for preventing modification anomalies are called: A. Normal forms. B. Referential integrity constraints. C. Functional dependencies. D. None of the above 115. A relation is in this form if it is in BCNF and has no multivalued dependencies: A. Second normal form. B. Third normal form C. Fourth normal form. D. Domain/key normal form Row is synonymous with the term: A. Record B. Column C. Field D. Relation 117. The primary key is selected from the: A. Composite keys B. Candidate keys C. Foreign keys D. Determinants 118. Which of the following is a group of one or more attributes that uniquely identifies a row? A. Key B. Tuple
17 C. Determinant D. Relation 119. When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n): A. Transitive dependency B. Insertion anomaly. C. Referential integrity constraint. D. Normal form 120. A relation is considered a: A. Column B. One dimensional table C. Two dimensional table D. Three dimensional table 121. In the relational model, relationships between relations or tables are created by using: A. Candidate keys B. Foreign keys C. Composite Keys D. Determinants 122. A functional dependency is a relationship between or among: A. Tables B. Rows C. Relations D. Attributes 123. Table is synonymous with the term: A. Record B. Column C. Field D. Relation 124. Which of the following is not a restriction for a table to be a relation? A. The cells of the table must contain a single value. B. All of the entries in any column must be of the same kind. C. The columns must be ordered. D. No two rows in a table may be identical For some relations, changing the data can have undesirable consequences called: A. Referential integrity constraints. B. Modification anomalies. C. Normal forms. D. Transitive dependencies If attributes A and B determine attribute C, then it is also true that: A. A C.
18 B. B C C. (A, B) is a composite determinant. D. C is a determinant 127. If attribute A determines both attributes B and C, then it is also true that: A. A B B. B A C. C A D. (B,C) A 128. One solution to the multivalued dependency constraint problem is to: A. split the relation into two relations, each with a single theme B. Change the theme. C. Create a new theme. D. add a composite key 129. FD stands for: a. Functional dependency b. Facilitate dependency c. Functional data d. Facilitate data 130. In which model of database data is stored in tables: a. Network model b. Relational model c. Hierarchical model d. None of these 131. How many types of keys in relation database design: a. Primary key b. Candidate key c. Foreign key d. All of these 132. Which key is referencing a primary key in a table: a. Primary key b. Candidate key c. Foreign key d. All of these 133. In which ways two tables may be related: a. One-one b. One-many c. Many-many d. All of these 134. Which rules are defined in relational models they from as an essential part of any relation database:
19 a. Integrity rules b. Database c. Record d. Memory 135. Which are the types of integrity rule: a. Entity integrity b. Referential integrity c. Both d. None 136. states that primary keys should not be null: a. Entity integrity b. Referential integrity c. Both d. None 137. Which command creates database objects like tables, views and indexes: a. Create command b. Update command c. Both d. None 138. Which command enables alteration the data stored in existing records: a. Create command b. Update command c. Deletion command d. All of these 139. Which are the dependencies types: a. Full functional dependency b. Partial dependency c. Trivial functional dependency d. All of these 140. FDs are the types of constraints that are based on : a. Key b. Key revisited c. Superset key d. None of these 141. Who developed the normalization process: a. E.F. codd b. F.F. codd c. E.E. codd
20 d. None of these 142. E.F.Codd developed the normalization process in the which early: a b c d Which is a bottom-up approach to database design that design by examining the relationship between attributes: a. Functional dependency b. Database modeling c. Normalization d. Decomposition 144. Which is the process of breaking a relation into multiple relations: a. Functional dependency b. Database modeling c. Normalization d. Decomposition 145. In decomposition technique of splitting a relation into relation: a. ONE or MORE b. TWO or MORE c. THREE or MORE d. FOUR or MORE 146. Consequently R.Boyce-Codd jointly launched powerful definition for the third normal form called : a. Boyce-Codd normal form b. First normal form c. Second normal form d. All of these 147. BCNF stands for: a. Basic -Codd normal form b. Build -Codd normal form c. Boyce-Codd normal form d. None of these 148. Which forms simplifies and ensures that there is minimal data aggregates and repetitive groups: a. 1NF b. 2NF c. 3NF d. All of these
21 149. Which forms every non-prime attribute is fully dependent functionally on the candidate key of a relational schema: a. 1NF b. 2NF c. 3NF d. 5NF 150. PJNF stands form: a. Practically join normal form b. Project join normal form c. Pages join normal form d. programming join normal form 151. Which forms are based on the concept of functional dependency a. 1NF b. 2NF c. 3NF d. 4NF 152. Which one is based on multi-valued dependency: a. First b. Second c. Third d. Fourth 153. The DBMS utility, allows to reconstruct the correct state of database from the backup and history of transactions. A) Backup B) Recovery C) Monitoring D) Data loading 154. In the... normal form, a composite attribute is converted to individual attributes. A) First B) Second C) Third D) Fourth 155. In RDBMS, Data is presented as a collection of... A) Table B) Attributes C) Relations D) Entities 156. A... normal form, normalization will be needed where all attributes in a relation are not functionally dependent only on the key attribute.
22 A) First B) Second C) Third D) Fourth 157. To select all column from the table the syntax is: A) Select all from table_name B) Select * from table_name C) Select from table_name D) Non of the above 158. If an attribute of a composite key is dependent on an attribute of the other composite key, normalization called... is needed. A) DKNF B) BCNF C) Fourth D) Third 159. Identify the criteria for designing database from the point of view of user A) No redundancy B) No inapplicable attributes C) Uniformity in naming & definitions of the data items D) All of the above 160. The... operator preserves unmatched rows of the relations being joined. A) Inner join B) Outer join C) Union D) Union join 161. Which of the syntax is correct for insert statement? i) insert into <table_name> values <list of values> ii) insert into <table_name> (column list) values <list of values> A) i-only B) ii-only C) Both of them D) None of them First proposed the process of normalization. A) Edgar. W B) Edgar F. Codd C) Edward Stephen D) Edward Codd 163. For using a specific database command is used.
23 A) use database B) databasename use C) Both A &B D) None of them 164. Which of the following is not comparison operator? A) <> B) < C) =< D) >= 165. is a special type of integrity constraint that relates two relations & maintains consistency across the relations. A) Entity Integrity Constraints B) Referential Integrity Constraints C) Domain Integrity Constraints D) Key Constraints specifies a search condition for a group or an aggregate. A) GROUP BY Clause B) HAVING Clause C) FROM Clause D) WHERE Clause 167. Drop Table cannot be used to drop a table referenced by a constraint. A) Local Key B) Primary Key C) Composite Key D) Foreign Key 168. ensures that once transaction changes are done, they cannot be undone or lost, even in the event of a system failure. A. Atomicity B. Consistency C. Durability D. Isolation 169. Deadlocks are possible only when one of the transactions wants to obtain a(n) lock on a data item. A. binary B. exclusive C. shared D. Complete 170. If several concurrent transactions are executed over the same data set and the second transaction updates the database before the first transaction is finished, the property is violated and the database is no longer consistent.
24 A. atomicity B. consistency C. isolation D. Durability 171. A DBMS uses a transaction to keep track of all transactions that update the database A. log B. table C. block D. Statement 172. When a program is abnormally terminated, the equivalent of a command occurs. A. COMMIT B. ROLLBACK C. QUIT D. EXIT 173. In a(n) backup of the database, only the last modifications to the database are copied. A. full B. incomplete C. differential D. transaction log 174. Although the locking approach improves the availability of data, its management requires high overhead. A. database-level B. table-level C. page-level D. row-level 175. A(n) lock exists when concurrent transactions are granted Read access on the basis of a common lock. A. binary B. field-level C. shared D. Exclusive 176. A database state is one in which all data integrity constraints are satisfied. A. fixed B. complete C. consistent
25 D. Secure 177. The statement is used to end a successful transaction. A. COMMIT B. DONE C. END D. QUIT 178. means that the data used during the execution of a transaction cannot be used by a second transaction until the first one is completed. A. Atomicity B. Consistency C. Durability D. Isolation 179. The three basic techniques to control deadlocks are: deadlock, deadlock detection, and deadlock avoidance. A. prevention B. prohibition C. rollback D. Commits 180. All transactions are controlled and executed by the DBMS (subject to some limitations) to guarantee database. A. integrity B. uniqueness C. consistency D. Design 181. In a lock, the DBMS will lock an entire disk page. A. database-level B. table-level C. page-level D. row-level 182. All lock information is managed by a, which is responsible for assigning and policing the locks used by the transactions. A. scheduler B. DBMS C. lock manager D. locking agent 169. C 183. According to the ANSI SQL standard, when does a transaction begin? A. with use of the START command B. when the first SQL statement is encountered C. with the BEGIN command
26 D. with the BEGIN TRANSACTION command 184. The lock allows concurrent transactions to access the same row as long as they require the use of different fields within that row. A. table-level B. page-level C. row-level D. field-level 185. What is ACID properties A. Atomicity B. Consistency C. Isolation D. Durability E. All of the above Correct Answer: E 186. Which refers to a property of computer to run several operation simultaneously and possible as computers await response of each other: a. Concurrency b. Deadlock c. Backup d. Recovery 187. Which is refers to a stalemate situation due to which no further progress is possible as computer await response of each other: a. Concurrency b. Deadlock c. Backup d. Recovery 188. Which is a duplicate copy of a file program that is stored on a different storage media than the original location: a. Concurrency b. Deadlock c. Backup d. Recovery joins are SQL server default A) Outer B) Inner
27 C) Equi D) None of the above 190. The... is essentially used to search for patterns in target string. A) Like Predicate B) Null Predicate C) In Predicate D) Out Predicate requires that data should be made available to only authorized users. A) Data integrity B) Privacy C) Security D) None of the above is a combination of two of more attributes used as a primary key A) Composite Key B) Alternate Key C) Candidate Key D) Foreign Key 193. To delete a database... command is used A) delete database database_name B) Delete database_name C) drop database database_name D) drop database_name 194. Some of the utilities of DBMS are... i) Transaction ii) Backup iii) File organization iv) Process Organization A) i, ii, and iv only B) i, ii and iii only C) ii, iii and iv only D) All i, ii, iii, and iv 195. There are number of Normal forms that has been defined A. 5 B. 6 C. 4 D The primary key must be A. Unique
28 B. Not Null C. Both A & B D. None of these 197. Which of the following is not unary operation? A. Select B. Union C. Project D. Rename 198. Which is relation calculus: a. Tuple relational calculus b. Domain relational calculus c. Both d. None 199. Which calculus is based on specifying a number of tuple variables:
29 a. Tuple relation calculus b. Domain relational calculus c. Both d. None 200. SQL outputs a single table known as the : a. View b. Column c. Tablespace d. Result set
Data Base Management Systems (DBMS) Study Material (Objective Type questions with Answers) Shared by Akhil Arora Powered by www. your A to Z competitive exam guide Database Objective type questions Q.1
DATABASE MANAGEMENT SYSTEMS Question Bank: UNIT 1 1. Define Database? 2. What is a DBMS? 3. What is the need for database systems? 4. Define tupule? 5. What are the responsibilities of DBA? 6. Define schema?
Database Systems I (Compulsory) INTRODUCTION This is one of the 4 modules designed for Semester 2 of Bachelor of Information Technology Degree program. CREDITS: 04 LEARNING OUTCOMES On completion of this
: Database Systems 1 (DBS 1) (Compulsory) 1. OUTLINE OF SYLLABUS Topic Minimum number of hours Introduction to DBMS 07 Relational Data Model 03 Data manipulation using Relational Algebra 06 Data manipulation
CMPT-354-Han-95.3 Lecture Notes September 10, 1995 Chapter 1 Introduction 1.0 Database Management Systems 1. A database management system èdbmsè, or simply a database system èdbsè, consists of æ A collection
COMP 378 Database Systems Notes for Chapter 1 of Database System Concepts Introduction A database management system (DBMS) is a collection of data and an integrated set of programs that access that data.
14 Databases 14.1 Source: Foundations of Computer Science Cengage Learning Objectives After studying this chapter, the student should be able to: Define a database and a database management system (DBMS)
Chapter 1: Introduction Database System Concepts, 5th Ed. See www.db book.com for conditions on re use Chapter 1: Introduction Purpose of Database Systems View of Data Database Languages Relational Databases
SQL Server 1. What is RDBMS? Relational Data Base Management Systems (RDBMS) are database management systems that maintain data records and indices in tables. Relationships may be created and maintained
UNIT-1 Ques 1. Define dbms and file management system? Ans- Database management system (DBMS) is a collection of interrelated data and a set of programs to access those data. Some of the very well known
Instant SQL Programming Joe Celko Wrox Press Ltd. INSTANT Table of Contents Introduction 1 What Can SQL Do for Me? 2 Who Should Use This Book? 2 How To Use This Book 3 What You Should Know 3 Conventions
Lesson 8: Introduction to Databases E-R Data Modeling Contents Introduction to Databases Abstraction, Schemas, and Views Data Models Database Management System (DBMS) Components Entity Relationship Data
Scheme G Sample Test Paper-I Course Name : Computer Engineering Group Course Code : CO/CM/IF/CD/CW Marks : 25 Hours: 1 Hrs. Q.1 Attempt Any THREE. 09 Marks a) List any six applications of DBMS. b) Define
Oracle For Beginners Page: 1 1. INTRODUCTION TO RDBMS What is DBMS? Data Models Relational database management system (RDBMS) Relational Algebra Structured query language (SQL) What Is DBMS? Data is one
Chapter 1: Introduction Purpose of Database Systems View of Data Data Models Data Definition Language Data Manipulation Language Transaction Management Storage Management Database Administrator Database
About the Tutorial Database Management System or DBMS in short refers to the technology of storing and retrieving users data with utmost efficiency along with appropriate security measures. DBMS allows
SQL Databases Course by Applied Technology Research Center. 23 September 2015 This course provides training for MySQL, Oracle, SQL Server and PostgreSQL databases. Oracle Topics This Oracle Database: SQL
CHAPTER 2 DATABASE MANAGEMENT SYSTEM AND SECURITY 2.1 Introduction In this chapter, I am going to introduce Database Management Systems (DBMS) and the Structured Query Language (SQL), its syntax and usage.
This image cannot currently be displayed. Chapter 1: Introduction Database System Concepts, 6 th Ed. See www.db-book.com for conditions on re-use Database Management System (DBMS) DBMS contains information
GROUP 2 PRACTICE EXAMPLES FOR THE REVIEW QUIZ: Review Quiz will contain very similar question as below. Some questions may even be repeated. The order of the questions are random and are not in order of
Chapter 1: Introduction Purpose of Database Systems View of Data Data Models Data Definition Language Data Manipulation Language Transaction Management Storage Management Database Administrator Database
ECS 165A: Introduction to Database Systems Todd J. Green based on material and slides by Michael Gertz and Bertram Ludäscher Winter 2011 Dept. of Computer Science UC Davis ECS-165A WQ 11 1 1. Introduction
3 Database Management Chapter Objectives When actually using a database, administrative processes maintaining data integrity and security, recovery from failures, etc. are required. A database management
Introduction Database Management Systems Database Management System (DBMS) Collection of interrelated data and set of programs to access the data Convenient and efficient processing of data Database Application
Introduction to Database Systems A database is a collection of related data. It is a collection of information that exists over a long period of time, often many years. The common use of the term database
http://en.wikipedia.org/wiki/database_normalization Database normalization is the process of organizing the fields and tables of a relational database to minimize redundancy. Normalization usually involves
1 Topics for this week: 1. Good Design 2. Functional Dependencies 3. Normalization Readings for this week: 1. E&N, Ch. 10.1-10.6; 12.2 2. Quickstart, Ch. 3 3. Complete the tutorial at http://sqlcourse2.com/
2. Basic Relational Data Model 2.1 Introduction Basic concepts of information models, their realisation in databases comprising data objects and object relationships, and their management by DBMS s that
ISM 318: Database Systems Dr. Hamid R. Nemati Department of Information Systems Operations Management Bryan School of Business Economics Objectives Underst the basics of data databases Underst characteristics
CHAPTER 6 DATABASE MANAGEMENT SYSTEMS Management Information Systems, 10 th edition, By Raymond McLeod, Jr. and George P. Schell 2007, Prentice Hall, Inc. 1 Learning Objectives Understand the hierarchy
Acknowledgments xvii Introduction xix CHAPTER 1 Database Fundamentals 1 Properties of a Database 1 The Database Management System (DBMS) 2 Layers of Data Abstraction 3 Physical Data Independence 5 Logical
Introduction to database management systems Database management systems module Myself: researcher in INRIA Futurs, Ioana.Manolescu@inria.fr The course: follows (part of) the book "", Fourth Edition Abraham
DBMS / Business Intelligence, SQL Server Orsys, with 30 years of experience, is providing high quality, independant State of the Art seminars and hands-on courses corresponding to the needs of IT professionals.
GUJARAT TECHNOLOGICAL UNIVERSITY, AHMEDABAD, GUJARAT COURSE CURRICULUM COURSE TITLE: DATABASE MANAGEMENT (Code: 3341605 ) Diploma Programme in which this course is offered Information Technology Semester
Oracle For Beginners Page : 1 5. CHANGING STRUCTURE AND DATA Altering the structure of a table Dropping a table Manipulating data Transaction Locking Read Consistency Summary Exercises Altering the structure
Oracle University Contact Us: 1.800.529.0165 MySQL for Beginners Ed 3 Duration: 4 Days What you will learn The MySQL for Beginners course helps you learn about the world's most popular open source database.
Chapter 2 Database System Concepts and Architecture Copyright 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter 2 Outline Data Models, Schemas, and Instances Three-Schema Architecture
MODULE 8 LOGICAL DATABASE DESIGN OBJECTIVE QUESTIONS There are 4 alternative answers to each question. One of them is correct. Pick the correct answer. Do not guess. A key is given at the end of the module
Module 1- File Organization and Structure Short Questions: 1. How data differs from information? 2. What are the different types of cache memory? 3. List at least two devices where flash memory is used.
VALLIAMMAI ENGNIEERING COLLEGE SRM Nagar, Kattankulathur 603203. DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING Year & Semester : II / III Section : CSE - 1 & 2 Subject Code : CS 6302 Subject Name : Database
Fundamentals of Database Design Zornitsa Zaharieva CERN Data Management Section - Controls Group Accelerators and Beams Department /AB-CO-DM/ 23-FEB-2005 Contents : Introduction to Databases : Main Database
Modern Systems Analysis and Design Prof. David Gadish Structuring System Data Requirements Learning Objectives Concisely define each of the following key data modeling terms: entity type, attribute, multivalued
Eduardo Cunha de Almeida firstname.lastname@example.org Outline of the course Introduction Database Systems (E. Almeida) Distributed Hash Tables and P2P (C. Cassagnes) NewSQL (D. Kim and J. Meira) NoSQL (D. Kim)
The process of database development Reality (Universe of Discourse) Relational Databases and SQL Basic Concepts The 3rd normal form Structured Query Language (SQL) Conceptual model (e.g. Entity-Relationship
Relational Database Basics Review IT 4153 Advanced Database J.G. Zheng Spring 2012 Overview Database approach Database system Relational model Database development 2 File Processing Approaches Based on
s Design Chapter 1: Introduction Departamento de Engenharia Informática Instituto Superior Técnico 1 st Semester 2008/2009 Slides (fortemente) baseados nos slides oficiais do livro c Silberschatz, Korth
Oracle 10g PL/SQL Training Course Number: ORCL PS01 Length: 3 Day(s) Certification Exam This course will help you prepare for the following exams: 1Z0 042 1Z0 043 Course Overview PL/SQL is Oracle's Procedural
Files What s it all about? Information being stored about anything important to the business/individual keeping the files. The simple concepts used in the operation of manual files are often a good guide
B2.2-R3: INTRODUCTION TO DATABASE MANAGEMENT SYSTEMS NOTE: 1. There are TWO PARTS in this Module/Paper. PART ONE contains FOUR questions and PART TWO contains FIVE questions. 2. PART ONE is to be answered
Course: CSC 222 Database Design and Management I (3 credits Compulsory) Course Duration: Three hours per week for 15weeks with practical class (45 hours) As taught in 2010/2011 session Lecturer: Oladele,
Chapter 9 Transaction Management and Concurrency Control Database Systems: Design, Implementation, and Management, Sixth Edition, Rob and Coronel 1 In this chapter, you will learn: What a database transaction
Chapter 1 Databases and Database Users Copyright 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter 1 Outline Introduction An Example Characteristics of the Database Approach Actors
Concepts Oracle Corporation offers a wide variety of products. The Oracle Database 10g, the product this exam focuses on, is the centerpiece of the Oracle product set. The "g" in "10g" stands for the Grid
Oracle University Contact Us: 1.800.529.0165 Oracle Database 10g: Introduction to SQL Duration: 5 Days What you will learn This course offers students an introduction to Oracle Database 10g database technology.
Chapter 1 Databases and Database Users Copyright 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Introduction Chapter 1 Outline An Example Characteristics of the Database Approach Actors
In This Chapter This chapter describes several issues that a database administrator (DBA) must understand to effectively plan for a database. It discusses the following topics: Choosing a data model for
Fundamentals of Database Systems, 4 th Edition By Ramez Elmasri and Shamkant Navathe Table of Contents A. Short Table of Contents (This Includes part and chapter titles only) PART 1: INTRODUCTION AND CONCEPTUAL
CS2Bh: Current Technologies Introduction to XML and Relational Databases Spring 2005 Introduction to Databases CS2 Spring 2005 (LN5) 1 Why databases? Why not use XML? What is missing from XML: Consistency
UNIT 1 Concept of DBMS Structure 1.0 Introduction 1.1 Purpose of Data Base Systems 1.2 Data Abstraction 1.3 Instance, Schema and Sub-Schema 1.4 Data Independence 1.5 Data Models 1.6 Data Base Languages
ECS-165A WQ 11 36 3. Relational Model and Relational Algebra Contents Fundamental Concepts of the Relational Model Integrity Constraints Translation ER schema Relational Database Schema Relational Algebra
AV-005: Administering and Implementing a Data Warehouse with SQL Server 2014 Career Details Duration 105 hours Prerequisites This career requires that you meet the following prerequisites: Working knowledge
Databases What the Specification Says Describe flat files and relational databases, explaining the differences between them; Design a simple relational database to the third normal form (3NF), using entityrelationship
COSC 304 Introduction to Systems Introduction Dr. Ramon Lawrence University of British Columbia Okanagan email@example.com What is a database? A database is a collection of logically related data for
Database Design 2015-2016 Database Design Final Project مشروع قاعدة بیانات ھو مشروع على طول السنة لاعطاء الطلبة الفرصة لتطویر قاعدة بیانات باستخدام نظام ادراة قواعد البیانات التجاریة حیث یبین الجدول رقم
PART-I TYPICAL QUESTIONS & ANSWERS OBJECTIVE TYPE QUESTIONS Each question carries 2 marks. Choose the correct or best alternative in the following: Q.1 In the relational modes, cardinality is termed as:
Core Syllabus B BUILD KNOWLEDGE AREA: DEVELOPMENT AND IMPLEMENTATION OF INFORMATION SYSTEMS Version 2.6 June 2006 EUCIP CORE Version 2.6 Syllabus. The following is the Syllabus for EUCIP CORE Version 2.6,
EXAMINATIONS 2005 MID-YEAR COMP 302 Database Systems Time allowed: Instructions: 3 Hours Answer all questions. Make sure that your answers are clear and to the point. Write your answers in the spaces provided.
Concepts of Database Management Seventh Edition Chapter 7 DBMS Functions Objectives Introduce the functions, or services, provided by a DBMS Describe how a DBMS handles updating and retrieving data Examine
Chapter 7. Database Planning, Design and Administration Last few decades have seen proliferation of software applications, many requiring constant maintenance involving: correcting faults, implementing
Database Management System Introduction Concept of Database Database: It is a collection of interrelated data files/tables. Table: It is collection of similar records. Record: It is collection of meaningful
ISSN: 2349-7637 (Online) RESEARCH HUB International Multidisciplinary Research Journal Research Paper Available online at: www.rhimrj.com Database Management System Viral R. Dagli Lecturer, Computer Science
TYPICAL QUESTIONS & ANSWERS PART -I OBJECTIVE TYPE QUESTIONS Each Question carries 2 marks. Choosethe correct or the best alternative in the following: Q.1 Which of the following relational algebra operations
REVIEW ARTICLE DATABASE MANAGEMENT SYSTEM Sweta Singh Assistant Professor, Faculty of Management Studies, BHU, Varanasi, India E-mail: firstname.lastname@example.org ABSTRACT Today, more than at any previous
Database Programming with PL/SQL: Learning Objectives This course covers PL/SQL, a procedural language extension to SQL. Through an innovative project-based approach, students learn procedural logic constructs
THE BCS PROFESSIONAL EXAMINATION Diploma October 2004 EXAMINERS REPORT Database Systems Question 1 1. a) In your own words, briefly describe why a relational database design must be normalised prior to
TRAINING & REFERENCE murach's SQL Server 2012 for developers Bryan Syverson Joel Murach Mike Murach & Associates, Inc. 4340 N. Knoll Ave. Fresno, CA 93722 www.murach.com email@example.com Expanded
DATABASE NORMALIZATION Normalization: process of efficiently organizing data in the DB. RELATIONS (attributes grouped together) Accurate representation of data, relationships and constraints. Goal: - Eliminate
1 B.Sc (Computer Science) Database Management Systems UNIT-V Business Intelligence? Business intelligence is a term used to describe a comprehensive cohesive and integrated set of tools and process used
SQL Server An Overview SQL Server Microsoft SQL Server is designed to work effectively in a number of environments: As a two-tier or multi-tier client/server database system As a desktop database system
Introduction to Computing Lectured by: Dr. Pham Tran Vu firstname.lastname@example.org Databases The Hierarchy of Data Keys and Attributes The Traditional Approach To Data Management Database A collection of