Data base management system
... DATA BASE MANAGEMENT SYSTEM - MCA-22 Theory - 100 Marks Sessional - 50 Marks Introduction: Advantages of DBMS approach, Various views of data, data independence, schema & sub- schema, Primary concept of data models, Database languages, Transaction management, Database administrator & user, Data dict ...
... DATA BASE MANAGEMENT SYSTEM - MCA-22 Theory - 100 Marks Sessional - 50 Marks Introduction: Advantages of DBMS approach, Various views of data, data independence, schema & sub- schema, Primary concept of data models, Database languages, Transaction management, Database administrator & user, Data dict ...
Basics of data management
... several. These permit efficient processing but the sets must be constructed on data entry and cannot be rearranged later. ...
... several. These permit efficient processing but the sets must be constructed on data entry and cannot be rearranged later. ...
Problems with the Traditional File Environment
... format the user needs. The tables are sometimes called files, although that is actually a misnomer. Data in each table are broken down into fields. A field, or column, contains a single attribute for an entity. A group of fields is stored in a record or tuple (the technical term for record). Figure ...
... format the user needs. The tables are sometimes called files, although that is actually a misnomer. Data in each table are broken down into fields. A field, or column, contains a single attribute for an entity. A group of fields is stored in a record or tuple (the technical term for record). Figure ...
InstantJChem: a flexible chemical database system
... A database stores data in an ordered form on a precise subject. A relational database stores information into tables which possess inter-references A relational database management system (RDBMS) is a software that manages relational databases InstantJChem is not a database and is not an RDB ...
... A database stores data in an ordered form on a precise subject. A relational database stores information into tables which possess inter-references A relational database management system (RDBMS) is a software that manages relational databases InstantJChem is not a database and is not an RDB ...
Database terms
... large amounts of data, quickly. Therefore, databases can be used in any situation where data needs to be found quickly. ...
... large amounts of data, quickly. Therefore, databases can be used in any situation where data needs to be found quickly. ...
Project: DatabasePP
... • The relational operations work differently from the set operations. • The projection operation can extract columns from one or more tables. • The selection operation can extract rows from one or more tables. So, one operation act vertical on tables while the other acts horizontally on tables. • Th ...
... • The relational operations work differently from the set operations. • The projection operation can extract columns from one or more tables. • The selection operation can extract rows from one or more tables. So, one operation act vertical on tables while the other acts horizontally on tables. • Th ...
Database Systems: Design, Implementation, and Management
... The relational database model does not completely eliminate data redundancy but uses controlled data redundancy. Foreign keys create redundant data, but serve the useful purpose of maintaining referential integrity. They are also used in Join operations. Sometimes user requirements demand storing ap ...
... The relational database model does not completely eliminate data redundancy but uses controlled data redundancy. Foreign keys create redundant data, but serve the useful purpose of maintaining referential integrity. They are also used in Join operations. Sometimes user requirements demand storing ap ...
Quick review of SQL
... • You know how to translate entityrelationship models into: – Tables – With constraints ...
... • You know how to translate entityrelationship models into: – Tables – With constraints ...
CS263Lecture1
... • Relational databases views all data in the form of tables • Each column represents an attribute, e.g. the Customer table has attributes ID, Name, Address..etc. • Relationships between entities are represented by values stored in columns of the corresponding tables, e.g. Customer_ID is an attribute ...
... • Relational databases views all data in the form of tables • Each column represents an attribute, e.g. the Customer table has attributes ID, Name, Address..etc. • Relationships between entities are represented by values stored in columns of the corresponding tables, e.g. Customer_ID is an attribute ...
Microsoft Access - Dalhousie University
... Used to easily view, enter, and change data directly in a table retrieves the data from one or more tables, and displays it on the screen also display pictures and other objects can contain a button that prints, opens other ...
... Used to easily view, enter, and change data directly in a table retrieves the data from one or more tables, and displays it on the screen also display pictures and other objects can contain a button that prints, opens other ...
Solution Sketches Spring 2002 Final Exam
... function to n aggregate values is the same as that derived by applying the function on all the data without partitioning. For example, if we have a materialized cube that contains the sum of salaries paid to employees in a county, and we perform a roll up operation along the location dimension (movi ...
... function to n aggregate values is the same as that derived by applying the function on all the data without partitioning. For example, if we have a materialized cube that contains the sum of salaries paid to employees in a county, and we perform a roll up operation along the location dimension (movi ...
Introduction to MS Access
... It runs independently on workstations for single users It runs on servers that can be accessed by multiple users at the same time on a network It provides a user friendlier front end to more powerful database applications such as Oracle and MS SQL Server ...
... It runs independently on workstations for single users It runs on servers that can be accessed by multiple users at the same time on a network It provides a user friendlier front end to more powerful database applications such as Oracle and MS SQL Server ...
A gentle Introduction to Computer Programming
... primary key and be used to identify tuples in the relation – A foreign key is an attribute in a relation which is the primary key of another relation Ex. Customer(S.S., First_Name, Last_Name, Address) ...
... primary key and be used to identify tuples in the relation – A foreign key is an attribute in a relation which is the primary key of another relation Ex. Customer(S.S., First_Name, Last_Name, Address) ...
Slides
... Digitization of unique library collections will increase and require a larger share of resources..libraries often must reallocate fiscal resources to support these projects ...
... Digitization of unique library collections will increase and require a larger share of resources..libraries often must reallocate fiscal resources to support these projects ...
chap005a
... a subset of records that meet a stated criterion Example, select employees who make more than ...
... a subset of records that meet a stated criterion Example, select employees who make more than ...
Document
... Consider ThingA and ThingB Can ThingA be related to more than one ThingB? Can ThingB be related to more than one ThingA? If the answers are yes and yes, then the relationship is many to many. ...
... Consider ThingA and ThingB Can ThingA be related to more than one ThingB? Can ThingB be related to more than one ThingA? If the answers are yes and yes, then the relationship is many to many. ...
Status - UTRGV Faculty Web
... set name, and a member record type. An owner record type can also be a member or owner in another set. • A set defines a 1:M relationship, and the complete network of relationships is represented by several pairwise sets. ...
... set name, and a member record type. An owner record type can also be a member or owner in another set. • A set defines a 1:M relationship, and the complete network of relationships is represented by several pairwise sets. ...
MINFILE/vax INTRODUCTION MINFILE/vax DATABASE DESIGN
... The database design uses an 'entityrelationship* model comprised of tables of codes (entities), with interrelated tables of deposit data, containing common MINFILE numbers. These codes, for such things as rock and mineral names, save computer file space and result in substantial improvements in data ...
... The database design uses an 'entityrelationship* model comprised of tables of codes (entities), with interrelated tables of deposit data, containing common MINFILE numbers. These codes, for such things as rock and mineral names, save computer file space and result in substantial improvements in data ...
homework 5: Object-Oriented Databases
... the student-course-TA example for ODMG handout in class) for the following object classes: project, document, project-leader, research-paper and dbresearch-paper. Use document-IF as an interface class for document, document is a subclass of document-IF and research-paper is a subclass of document. d ...
... the student-course-TA example for ODMG handout in class) for the following object classes: project, document, project-leader, research-paper and dbresearch-paper. Use document-IF as an interface class for document, document is a subclass of document-IF and research-paper is a subclass of document. d ...