Silberschatz−Korth−Sudarshan • Database System Concepts‚ Fourth Edition Front Matter 1 1 11 11 35 35 36 87 140 140 141 194 229 260 307 307 308 337 363 393 393 394 446 494 529 563 563 564 590 637 Preface 1. Introduction Text I. Data Models Introduction 2. Entity−Relationship Model 3. Relational Model II. Relational Databases Introduction 4. SQL 5. Other Relational Languages 6. Integrity and Security 7. Relational−Database Design III. Object−Based Databases and XML Introduction 8. Object−Oriented Databases
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Sometimes we have to save image‚ any type of multimedia file or text file in Oracle database from client. In web application client must upload the file in web server or any other machine. But web server can access that directory where the files are uploaded. To complete the operation we can use Oracle Blob data type‚ Oracle directory and with a procedure. Implementation: Suppose we have a table name ImageTable. The table should be like this. CREATE TABLE ImageTable ( ID NUMBER‚ FILENAME
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CHAPTER 1 PROJECT IDENTIFICATION PROJECT CONTEXT Transactions are the routine day-to-day activities performed by most organizations. Some are commercial transactions (buying‚ selling products and services‚ paying bills etc.) others involve recording or retrieving data. Most individual transactions are relatively simple‚ but in most organizations‚ there are very large numbers‚ so speed and efficiency are important considerations. Transactions are a fundamental unit of activity in organizations
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Topic#6: Relational Database Operators 6.1 Significance of Relational Operators • Relational database supports basic database operations in order to provide useful means for retrieving or manipulating data in tables. • Because the relational model has its mathematical basis upon the relational theory (by thinking tables as sets or relations)‚ the supported database operators conform to existing operators in relational algebra. • In fact‚ a relational database software implementation
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Which system script contains the default runlevel? Pg425 /etc/inittab Use the following information for study points 3-5: A system administrator is manually setting up a new daemon named analyzed. The daemon should be set to run at runlevel 3 and be the very last daemon to load. 3. What should the link to start the daemon be named? Pg 426‚427 s99analyzed 4. What command would stop the analyzed daemon? Pg 427 service analyzed stop 5. What command would tell the system at which
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Management in Vehicle Control-Systems Dag Nystr¨ m o October 2005 Department of Computer Science and Electronics M¨ lardalen University a V¨ ster˚ s‚ Sweden a a Copyright c Dag Nystr¨ m‚ 2005 o E-mail: dag.nystrom@mdh.se ISSN 1651-4238 ISBN 91-88834-97-2 Printed by Arkitektkopia‚ V¨ ster˚ s‚ Sweden a a Distribution: M¨ lardalen University Press a Abstract As the complexity of vehicle control-systems increases‚ the amount of information that these systems are intended to handle also increases
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Distributed Database Management Systems Rajat sharan errajatsharan@gmail.com Abstract: The dream of computing power as readily available as the electricity in a wall socket is coming closer to reality with the arrival of grid and cloud computing. At the same time‚ databases grow to sizes beyond what can be efficiently managed by single server systems. There is a need for efficient distributed database management systems (DBMSs). Current distributed DBMSs are not built to scale to more
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Transaction Processing System of Aroroy Municipal Hospital A Capstone Project Submitted in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Information Technology In the College of Engineering & Computer Studies Of Divine Word College of Legazpi Legazpi City By: Mary Grace D. Bohol DIVINE WORD COLLEGE OF LEGAZPI College of Engineering and Computer Studies Legazpi City RECOMMENDATION FOR PROPOSAL DEFENSE In partial fulfillment of the requirements
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The entity-relationship model (or ER model) is a way of graphically representing the logical relationships of entities (or objects) in order to create a database. entity type is a collection of entity instances sharing similar properties Strong Entity Vs Weak Entity An entity set that does not have sufficient attributes to form a primary key is termed as a weak entity set. An entity set that has a primary key is termed as strong entity set. A weak entity is existence dependent. That is the
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Processing (CDPS) There are three main features of a database management system that make it attractive to use a DBMS in preference to more conventional software. These features are centralized data management‚ data independence‚ and systems integration In a database system‚ the data is managed by the DBMS and all access to the data is through the DBMS providing a key to effective data processing. This contrasts with conventional data processing systems where each application program has direct access
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